[go: up one dir, main page]

CN103010476A - Sleeve type piston tube for ejector of aircraft carrier - Google Patents

Sleeve type piston tube for ejector of aircraft carrier Download PDF

Info

Publication number
CN103010476A
CN103010476A CN201210514578XA CN201210514578A CN103010476A CN 103010476 A CN103010476 A CN 103010476A CN 201210514578X A CN201210514578X A CN 201210514578XA CN 201210514578 A CN201210514578 A CN 201210514578A CN 103010476 A CN103010476 A CN 103010476A
Authority
CN
China
Prior art keywords
sleeve
outer sleeve
middle sleeve
piston tube
inner sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201210514578XA
Other languages
Chinese (zh)
Inventor
魏伯卿
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201210514578XA priority Critical patent/CN103010476A/en
Publication of CN103010476A publication Critical patent/CN103010476A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

The invention discloses a sleeve type piston tube for an ejector of an aircraft carrier. The sleeve type piston tube comprises a section of piston tube consisting of three sleeves which are of different diameters and are sleeved coaxially together, wherein the sleeve type piston tube is constructed by connecting multiple sections of piston tubes end to end; and a slide rail which is used for supporting multiple sections of piston tubes and is provided with a plurality of densely-arranged bearings is further arranged. The sleeve type piston tube is characterized in that an inner sleeve and a middle sleeve are sealed together through a piston ring; an inner sleeve back slide block of the inner sleeve is jointed with a middle sleeve front slide block of the middle sleeve, so that the inner sleeve is prevented from sliding out of the middle sleeve completely; likewise, the middle sleeve and an outer sleeve are sealed together through a piston ring; a middle sleeve back slide block of the middle sleeve is jointed with an outer sleeve front slide block of the outer sleeve, so that the middle sleeve is prevented from sliding out of the outer sleeve completely; and a bearing on the upper side of the slide rail is used for supporting all sliding claws of the inner sleeve, the middle sleeve and the outer sleeve, so that the entire sleeve type piston tube is supported.

Description

Aircraft carrier ejector sleeve-type piston tube
Technical field
The present invention relates to aircraft carrier ejector sleeve-type piston tube, be applicable to the catapult-launching gear of aircraft carrier-based aircraft launching catapult, belong to the science and techniques of defence field.
Background technology
The ejector that aircraft carrier-based aircraft takes off is the proprietary technology of the U.S., although " Liaoning number " of China does not adopt ejector, but ejector takes off and can save a large amount of oil plants, thereby can not only strengthen the carrying capacity of carrier-borne aircraft, but also can increase the voyage of carrier-borne aircraft, therefore, the thinking of development shipborne aircraft catapult is forever not have mistake; The part of ejector most critical is catapult-launching gear, because only possess the device of the most powerful ejecting function, carrier-borne aircraft could be launched away, what the U.S. used is the steam ejection device, and the benefit of this device maximum is the steam that can produce high thrust, but produces the equipment of large steam and the power of consumption is very large, that the sliding formulas of jumping of Muscovite 8 degree are taken off and China " Liaoning number " adopts, this efficient of taking off is low, and takeoff speed is slow, and it is more unfavorable to embody in operation; United States Navy has researched and developed multiple ejector, comprise: the Series Pneumatic rotating disc type ejectors such as A, P series gunpowder rotating disc type ejector, F series inertial flywheel ejector, H Series Hydraulic mechanical type ejector, the jet light-duty ejector of J series, M series combustion and steam ejector, C series fluting cylinder ejector, Deng seven generation product, just last they think best or present maximum steam fluting cylinder ejector of usefulness, so they are kept absolutely secret technique, other countries do not dare to inquire yet; I think that the road of China development should be to utilize a kind of easier ejector to carry out the ejection type cunning to jump up and fly between the U.S. and Russia, because so namely can utilize the 8 degree gradients on deck, can make light-duty catapult-assisted takeoff again, light-duty ejector claimed structure is simple, it is little to take up room, stable performance, thrust is moderate, starting is fast, energy consumption is little, and not have the characteristics such as energy consumption, the present invention when preferably not taking off be exactly that science and techniques of defence expert to China provides a kind of catapult-launching gear for the ship aircraft carrier shipborne aircraft catapult that possesses above characteristics.
Summary of the invention
The purpose of this invention is to provide a kind of light-duty, simple in structure, little, stable performance of taking up room, thrust is moderate, starting is fast, energy consumption is little and when not taking off, does not have the aircraft carrier ejector sleeve-type piston tube of energy consumption.
Aircraft carrier ejector sleeve-type piston tube, a joint piston tube that comprises three sleeves compositions that diameter is different and concentric is nested together, form the sleeve-type piston tube by more piece piston tube headtotail, hold up in addition more piece piston tube and the intensive slide rail that a plurality of bearings are installed; It is characterized in that:
1, different three sleeves of diameter that form every joint piston tube, the most inboard sleeve is that the inner sleeve front end has an inner sleeve forward flange, the inner sleeve forward flange outside is equipped with two perpendicular to sleeve and is attached to the advancing slip pawl of inner sleeve on the bearing of slide rail upside, the AnchorPoint that is wired to horizontality and process inner sleeve of the advancing slip pawl of inner sleeve and inner sleeve forward flange point of connection, there is the inner sleeve set collar of high a 3 ~ 10mm in the sleeve outside of the inner sleeve other end, the outside of inner sleeve set collar is equipped with preferably inner sleeve primary piston ring of three sealing properties, slides gear behind the side formation inner sleeve of close advancing slip pawl one side of inner sleeve of inner sleeve set collar perpendicular to the axial line of sleeve; Middle sleeve is slightly larger than inner sleeve in axial sliding along sleeve to be enclosed within the inner sleeve outside and energy, and form sealing with inner sleeve primary piston ring, the middle sleeve front end outside has two perpendicular to sleeve and is attached to the advancing slip pawl of middle sleeve on the bearing of slide rail upside, the AnchorPoint that is wired to horizontality and process middle sleeve of the advancing slip pawl of middle sleeve and middle sleeve point of connection, there is the front set collar of the middle sleeve of high a 3 ~ 10mm middle sleeve front end inboard, round steel ring before the installed inside of set collar has three cross sections for circular middle sleeve before the middle sleeve, the internal diameter of round steel ring is slightly larger than the external diameter of inner sleeve before the middle sleeve, to reduce in axial sliding resistance of the suitable sleeve of inner sleeve and middle sleeve, the round steel ring is near the side formation middle sleeve advancing slip gear of middle sleeve rear end one side perpendicular to the axial line of sleeve before the middle sleeve, there is set collar behind the middle sleeve of high a 3 ~ 10mm in the middle sleeve rear end outside, the outside of set collar is equipped with preferably middle sleeve primary piston ring of three sealing properties behind the middle sleeve, slides gear behind the side formation middle sleeve of close middle sleeve front end one side of set collar perpendicular to the axial line of sleeve behind the middle sleeve; Outer sleeve is slightly larger than middle sleeve in axial sliding along sleeve to be enclosed within the middle sleeve outside and energy, and form sealing with middle sleeve primary piston ring, the outer sleeve front end outside has two perpendicular to sleeve and is attached to the advancing slip pawl of outer sleeve on the bearing of slide rail upside, the AnchorPoint that is wired to horizontality and process outer sleeve of the advancing slip pawl of outer sleeve and outer sleeve point of connection, there is the front set collar of the outer sleeve of high a 3 ~ 10mm outer sleeve front end inboard, round steel ring before the installed inside of set collar has three cross sections for circular outer sleeve before the outer sleeve, the internal diameter of round steel ring is slightly larger than the external diameter of middle sleeve before the outer sleeve, to reduce in axial sliding resistance of the suitable sleeve of outer sleeve and middle sleeve, the round steel ring is near the side formation outer sleeve advancing slip gear of outer sleeve rear end one side perpendicular to the axial line of sleeve before the outer sleeve, there is an outer sleeve rear flange outer sleeve rear end, the outer sleeve rear flange outside has two perpendicular to sleeve and sliding pawl after being attached to outer sleeve on the bearing of slide rail upside, the AnchorPoint that is wired to horizontality and process outer sleeve of sliding pawl and flange connecting point behind the outer sleeve.
2, forming each joint piston tube of sleeve-type piston tube, is by the outer sleeve rear flange of a joint and the inner sleeve forward flange of another joint, is fixedly connected by screw rod.
The present invention compared with prior art has the following advantages:
1, owing to there being piston ring to form sealing between the sleeve of every joint piston tube, so when sleeve slides, do not have releasing of liquid dielectric or gas medium.
2, the weight of sleeve-type piston tube is supported by slide rail, the length of sleeve-type piston tube almost can be unrestricted, reach more than 100 meter requirement so the sleeve-type piston tube can satisfy the ejector length that aircraft carrier-based aircraft takes off fully, and can determine according to the pressure of medium in the sleeve-type piston tube thickness of pipe of sleeve-type piston tube.
Description of drawings
Fig. 1 is the axial section scheme drawing of the embodiment of the invention;
Fig. 2 is middle M enlarged diagram embodiment illustrated in fig. 1.
Among Fig. 1-2: 1, inner sleeve is advancing slip pawl 2, bearing 3, round steel ring 4 before the middle sleeve, middle sleeve is advancing slip pawl 5, outer sleeve is advancing slip pawl 6, round steel ring 7 before the outer sleeve, outer sleeve 8, middle sleeve 9, inner sleeve 10, inner sleeve primary piston ring 11, middle sleeve primary piston ring 12, screw rod 13, outer sleeve rear flange 14, inner sleeve forward flange 15, nut 16, middle sleeve is advancing slip gear 17, outer sleeve is advancing slip gear 18, slide rail 19, sliding gear 20 behind the inner sleeve, sliding gear 21 behind the middle sleeve, sliding pawl behind the outer sleeve.
The specific embodiment
In the embodiment shown in Fig. 1-2: aircraft carrier ejector sleeve-type piston tube, a joint piston tube that comprises three sleeves compositions that diameter is different and concentric is nested together, form the sleeve-type piston tube by more piece piston tube headtotail, hold up in addition more piece piston tube and the intensive slide rail 18 that a plurality of bearings 2 are installed; It is characterized in that: different three sleeves of diameter that form every joint piston tube, the most inboard sleeve is that inner sleeve 9 front ends have an inner sleeve forward flange 14, inner sleeve forward flange 14 outsides are equipped with two perpendicular to sleeve and are attached to the advancing slip pawl 1 of inner sleeve on the bearing 2 of slide rail 18 upsides, inner sleeve is advancing slip pawl 1 and inner sleeve forward flange 14 point of connection be wired to horizontality and through the AnchorPoint of inner sleeve 9, there is the inner sleeve set collar of high a 3 ~ 10mm in the sleeve outside of inner sleeve 9 other ends, the outside of inner sleeve set collar is equipped with preferably inner sleeve primary piston ring 10 of three sealing properties, slides gear 19 behind the side formation inner sleeve of close advancing slip pawl 1 one sides of inner sleeve of inner sleeve set collar perpendicular to the axial line of sleeve; Middle sleeve 8 is slightly larger than inner sleeve 9 in axial sliding along sleeve to be enclosed within inner sleeve 9 outsides and energy, and form sealing with inner sleeve primary piston ring 10, the middle sleeve 8 front ends outsides has two perpendicular to sleeve and is attached to the advancing slip pawl 4 of middle sleeve on the bearing 2 of slide rail 18 upsides, middle sleeve is advancing slip pawl 4 and middle sleeve 8 point of connection be wired to horizontality and through the AnchorPoint of middle sleeve 8, there is the front set collar of the middle sleeve of high a 3 ~ 10mm middle sleeve 8 front end inboards, round steel ring 3 before the installed inside of set collar has three cross sections for circular middle sleeve before the middle sleeve, the internal diameter of round steel ring 3 is slightly larger than the external diameter of inner sleeve 9 before the middle sleeve, to reduce in axial sliding resistance of inner sleeve 9 and middle sleeve 8 suitable sleeves, round steel ring 3 is near the side formation middle sleeve advancing slip gear 16 of middle sleeve 8 rear ends one side perpendicular to the axial line of sleeve before the middle sleeve, there is set collar behind the middle sleeve of high a 3 ~ 10mm in the middle sleeve 8 rear ends outsides, the outside of set collar is equipped with preferably middle sleeve primary piston ring 11 of three sealing properties behind the middle sleeve, slides gear 20 behind the side formation middle sleeve of close middle sleeve 8 front ends one side of set collar perpendicular to the axial line of sleeve behind the middle sleeve; Outer sleeve 7 is slightly larger than middle sleeve 8 in axial sliding along sleeve to be enclosed within middle sleeve 8 outsides and energy, and form sealing with middle sleeve primary piston ring 11, the outer sleeve 7 front ends outsides has two perpendicular to sleeve and is attached to the advancing slip pawl 5 of outer sleeve on the bearing 2 of slide rail 18 upsides, outer sleeve is advancing slip pawl 5 and outer sleeve 7 point of connection be wired to horizontality and through the AnchorPoint of outer sleeve 7, there is the front set collar of the outer sleeve of high a 3 ~ 10mm outer sleeve 7 front end inboards, round steel ring 6 before the installed inside of set collar has three cross sections for circular outer sleeve before the outer sleeve, the internal diameter of round steel ring 6 is slightly larger than the external diameter of middle sleeve 8 before the outer sleeve, to reduce in axial sliding resistance of outer sleeve 7 and middle sleeve 8 suitable sleeves, round steel ring 6 is near the side formation outer sleeve advancing slip gear 17 of outer sleeve 7 rear ends one side perpendicular to the axial line of sleeve before the outer sleeve, there is an outer sleeve rear flange 13 outer sleeve 7 rear ends, outer sleeve rear flange 13 outsides have two perpendicular to sleeve and sliding pawl 21 after being attached to outer sleeve on the bearing 2 of slide rail 18 upsides, behind the outer sleeve sliding pawl 21 and outer sleeve rear flange 13 point of connection be wired to horizontality and through the AnchorPoint of outer sleeve 7.
Forming each joint piston tube of sleeve-type piston tube, is by the outer sleeve rear flange 13 of a joint and the inner sleeve forward flange 14 of another joint, is fixedly connected by screw rod 12.
Inner sleeve 9 indentation middle sleeves 8 are that the major part of inner sleeve 9 is enclosed within middle sleeve 8 when interior, inner sleeve is advancing slip, and the advancing slip pawl 4 of pawl 1 and middle sleeve is affixed, it is that inner sleeve 9 major parts are stretched out when middle sleeve 8 is outer that inner sleeve 9 stretches out middle sleeve 8, the advancing slip gear 16 of middle sleeve of sliding gear 19 and middle sleeve 8 is affixed behind the inner sleeve of inner sleeve 9, thereby makes inner sleeve 9 can not skid off middle sleeve 8 fully; Equally, middle sleeve 8 indentation outer sleeves 7 are that the major part of middle sleeve 8 is enclosed within outer sleeve 7 when interior, middle sleeve is advancing slip, and the advancing slip pawl 5 of pawl 4 and outer sleeve is affixed, it is that middle sleeve 8 major parts extend sleeve 7 when outer that middle sleeve 8 stretches out outer sleeve 7, the advancing slip gear 17 of outer sleeve of sliding gear 20 and outer sleeve 7 is affixed behind the middle sleeve of middle sleeve 8, thereby makes middle sleeve 8 can not skid off outer sleeve 7 fully.
  

Claims (2)

1. aircraft carrier ejector sleeve-type piston tube, a joint piston tube that comprises three sleeves compositions that diameter is different and concentric is nested together, form the sleeve-type piston tube by more piece piston tube headtotail, hold up in addition more piece piston tube and the intensive slide rail (18) that a plurality of bearings (2) are installed; It is characterized in that: different three sleeves of diameter that form every joint piston tube, the most inboard sleeve is that inner sleeve (9) front end has an inner sleeve forward flange (14), inner sleeve forward flange (14) outside is equipped with two perpendicular to sleeve and is attached to the advancing slip pawl of inner sleeve (1) on the bearing (2) of slide rail (18) upside, the AnchorPoint that is wired to horizontality and process inner sleeve (9) of the advancing slip pawl of inner sleeve (1) and inner sleeve forward flange (14) point of connection, there is the inner sleeve set collar of high a 3 ~ 10mm in the sleeve outside of inner sleeve (9) other end, the outside of inner sleeve set collar is equipped with preferably inner sleeve primary piston ring (10) of three sealing properties, slides gear (19) behind the side formation inner sleeve of close advancing slip pawl (1) one side of inner sleeve of inner sleeve set collar perpendicular to the axial line of sleeve; Middle sleeve (8) is slightly larger than inner sleeve (9) in axial sliding along sleeve to be enclosed within inner sleeve (9) outside and energy, and form sealing with inner sleeve primary piston ring (10), middle sleeve (8) the front end outside has two perpendicular to sleeve and is attached to the advancing slip pawl of middle sleeve (4) on the bearing (2) of slide rail (18) upside, the AnchorPoint that is wired to horizontality and process middle sleeve (8) of the advancing slip pawl of middle sleeve (4) and middle sleeve (8) point of connection, there is the front set collar of the middle sleeve of high a 3 ~ 10mm middle sleeve (8) front end inboard, round steel ring (3) before the installed inside of set collar has three cross sections for circular middle sleeve before the middle sleeve, the internal diameter of round steel ring (3) is slightly larger than the external diameter of inner sleeve (9) before the middle sleeve, to reduce in axial sliding resistance of the suitable sleeve of inner sleeve (9) and middle sleeve (8), round steel ring (3) is near the side formation middle sleeve advancing slip gear (16) of middle sleeve (8) rear end one side perpendicular to the axial line of sleeve before the middle sleeve, there is set collar behind the middle sleeve of high a 3 ~ 10mm in middle sleeve (8) the rear end outside, the outside of set collar is equipped with preferably middle sleeve primary piston ring (11) of three sealing properties behind the middle sleeve, slides gear (20) behind the side formation middle sleeve of close middle sleeve (8) front end one side of set collar perpendicular to the axial line of sleeve behind the middle sleeve; Outer sleeve (7) is slightly larger than middle sleeve (8) in axial sliding along sleeve to be enclosed within middle sleeve (8) outside and energy, and form sealing with middle sleeve primary piston ring (11), outer sleeve (7) the front end outside has two perpendicular to sleeve and is attached to the advancing slip pawl of outer sleeve (5) on the bearing (2) of slide rail (18) upside, the AnchorPoint that is wired to horizontality and process outer sleeve (7) of the advancing slip pawl of outer sleeve (5) and outer sleeve (7) point of connection, there is the front set collar of the outer sleeve of high a 3 ~ 10mm outer sleeve (7) front end inboard, round steel ring (6) before the installed inside of set collar has three cross sections for circular outer sleeve before the outer sleeve, the internal diameter of round steel ring (6) is slightly larger than the external diameter of middle sleeve (8) before the outer sleeve, to reduce in axial sliding resistance of the suitable sleeve of outer sleeve (7) and middle sleeve (8), round steel ring (6) is near the side formation outer sleeve advancing slip gear (17) of outer sleeve (7) rear end one side perpendicular to the axial line of sleeve before the outer sleeve, there is an outer sleeve rear flange (13) outer sleeve (7) rear end, outer sleeve rear flange (13) outside has two perpendicular to sleeve and sliding pawl (21) after being attached to outer sleeve on the bearing (2) of slide rail (18) upside, behind the outer sleeve sliding pawl (21) and outer sleeve rear flange (13) point of connection be wired to horizontality and through the AnchorPoint of outer sleeve (7).
2. aircraft carrier ejector sleeve-type piston tube as claimed in claim 1, it is characterized in that: each the joint piston tube that forms the sleeve-type piston tube, be by the outer sleeve rear flange (13) of a joint and the inner sleeve forward flange (14) of another joint, be fixedly connected by screw rod (12).
CN201210514578XA 2012-12-05 2012-12-05 Sleeve type piston tube for ejector of aircraft carrier Pending CN103010476A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210514578XA CN103010476A (en) 2012-12-05 2012-12-05 Sleeve type piston tube for ejector of aircraft carrier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210514578XA CN103010476A (en) 2012-12-05 2012-12-05 Sleeve type piston tube for ejector of aircraft carrier

Publications (1)

Publication Number Publication Date
CN103010476A true CN103010476A (en) 2013-04-03

Family

ID=47959700

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210514578XA Pending CN103010476A (en) 2012-12-05 2012-12-05 Sleeve type piston tube for ejector of aircraft carrier

Country Status (1)

Country Link
CN (1) CN103010476A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE562687C (en) * 1932-10-28 E H Ernst Heinkel Dr Ing Aircraft repelling device
FR758548A (en) * 1932-07-18 1934-01-18 Deutsche Werke Kiel Ag Airplane launch catapult braking device
US6536708B1 (en) * 1998-05-26 2003-03-25 Prospective Concepts Ag Take-off device for airplanes
CN101186235A (en) * 2006-09-26 2008-05-28 王志勇 Ejector with enclosed cylinder structure
CN202923893U (en) * 2012-12-05 2013-05-08 魏伯卿 Sleeve type piston tube for ejector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE562687C (en) * 1932-10-28 E H Ernst Heinkel Dr Ing Aircraft repelling device
FR758548A (en) * 1932-07-18 1934-01-18 Deutsche Werke Kiel Ag Airplane launch catapult braking device
US6536708B1 (en) * 1998-05-26 2003-03-25 Prospective Concepts Ag Take-off device for airplanes
CN101186235A (en) * 2006-09-26 2008-05-28 王志勇 Ejector with enclosed cylinder structure
CN202923893U (en) * 2012-12-05 2013-05-08 魏伯卿 Sleeve type piston tube for ejector

Similar Documents

Publication Publication Date Title
CN106679500B (en) A kind of two-stage light gas gun driven with Hydrogen Energy
CN104760706B (en) A kind of flywheel energy storage propulsion plant
CN101948009A (en) Aircraft carrier plane steam power catapult
EP2548802A3 (en) Aircraft versatile power system
EP2628919A3 (en) An aircraft propulsion system nacelle
CN203186559U (en) Ship sinking resistant device
CN102795347A (en) Two-tube spring ejector for aircraft carrier
CN202923893U (en) Sleeve type piston tube for ejector
CN104635225B (en) A kind of unpowered sonar launches retracting device
CN103010476A (en) Sleeve type piston tube for ejector of aircraft carrier
CN103649670B (en) Pollution-free liquid balancing device
CN204264463U (en) Vacuum power accumulating formula fixed wing aircraft launching catapult
CN104033284A (en) Novel two-dimensional nozzle
CN102951299A (en) Multilevel-sleeve piston-type gravity hydraulic catapult for shipboard aircraft on aircraft carrier
CN102259705B (en) Aircraft launching steam ejection boosting device
CN204924057U (en) Pneumatic transmitter of portable multipurpose
CN102975860A (en) Multi-stage magnetic catapult for carrier-borne aircraft
CN203865013U (en) Shipboard aircraft catapult
CN102336277A (en) Combined-type cylinder mandril ejector of carrier planes of aircraft carrier
CN105314124A (en) Vacuum-energy-storage-type launching catapult for fixed-wing aircraft
CN204738886U (en) Paste propellant supply device with solid propellant as power source
CN202953179U (en) Gravity hydraulic ejector for shipboard aircraft of aircraft carrier
CN201628520U (en) Pre-posed pusher and torpedo comprising pre-posed pusher
CN204161627U (en) Spiral aircraft carrier takes off catapult-launching gear
CN101975261A (en) Energy conservation technology capable of infinitely enlarging lever force

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C05 Deemed withdrawal (patent law before 1993)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20130403