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US3800972A - Trapped atmosphere closure assembly - Google Patents

Trapped atmosphere closure assembly Download PDF

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Publication number
US3800972A
US3800972A US00201358A US3800972DA US3800972A US 3800972 A US3800972 A US 3800972A US 00201358 A US00201358 A US 00201358A US 3800972D A US3800972D A US 3800972DA US 3800972 A US3800972 A US 3800972A
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US
United States
Prior art keywords
cover
lid
vacuum chamber
lip
missile
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.)
Expired - Lifetime
Application number
US00201358A
Inventor
R Raymond
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United States Department of the Army
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United States Department of the Army
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Publication date
Application filed by United States Department of the Army filed Critical United States Department of the Army
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Publication of US3800972A publication Critical patent/US3800972A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B15/00—Self-propelled projectiles or missiles, e.g. rockets; Guided missiles
    • F42B15/08—Self-propelled projectiles or missiles, e.g. rockets; Guided missiles for carrying measuring instruments; Arrangements for mounting sensitive cargo within a projectile; Arrangements for acoustic sensitive cargo within a projectile

Definitions

  • the gas is trapped between the lid and a cover secured to the vacuum chamber by latch means.
  • a valve is energized to release the sealing pressure and equalize [56] i inferences C the pressures on opposite sides of the cover for easy UNITED STATES PATENTS opening of the latches.
  • FIG. 1 identifies a vacuum chamber for carrying hardware for use in a missile after the missile has reached a desired space environment.
  • An end of the vacuum chamber is provided with an outwardly projecting lip 3.
  • a lid 5 engages the end of the vacuum chamber and the lid includes a resilient means 7 for sealing the vacuum chamber.
  • Disposed above the lid is a cover 9 provided with a downwardly extending flange 11 which includes a seal 13 for trapping air, nitrogen or other gas at atmospheric pressure in a space 15 equal to the outside environment.
  • the inside flange 11 is closely fitted with the 2 outside dimensions of lip 3 so that seal 13 can be effective under varying atmospheric pressure changes.
  • the cover is provided with a plurality of mechanical latches 17 for locking the cover to the vacuum chamber.
  • the distance flange 11 extends from the cover is designed so that the space 15 is provided when latch ends 19 en gages the underside of flange 11 and lip 3.
  • a solenoid operated valve 21 is mounted on the cover for releasing the trapped pressure in space 15 through opening 23 when the solenoid is energized by power being applied to wires 25.
  • the vacuum chamber 1 is evacuated by means 27 until a pressure of l4.7 PSI is created on the outside of lid 5.
  • Closing the cover 9 traps approximately one atmosphere pressure between the lid and cover 9.
  • the pressure outside the cover .and vacuum chamber becomes less but the atmospheric pressure between the cover and lid remain the same due to the sealing arrangement 13. Since this trapped atmosphere cannot escape it creates a sealing force on the lid while the cover is restrained by the latches.
  • the solenoid valve is energized and the pressure in space 15 is released into space through opening 23.
  • the latches can be very easily opened after dumping since the pressures outside the cover, between the cover and lid, and in the vacuum chamber are equal.
  • a trapped atmosphere closure assembly on a vacuum chamber contained in a missile comprising: a lid having seal means thereon for sealing said vacuum chamber; a cover connected to said vacuum chamber by pivoted latches; said cover being spaced from said lid to provide an air space therebetween for maintaining a sealing force under atmospheric pressure on said lid; said airspace being sealed by means including a lip projecting from said vacuum chamber, a downwardly extending flange for engagement with said lip and a seal carried by said flange to engage the vertical surface said lip; said lid seal means engaging the horizontal surface of said lip; said cover being provided with an .opening for communicating the space between said lid and said cover with the outside environment; and a solenoid valve carried by said cover for controling said opening and releasing said sealing force when the missile has taken the vacuum chamber to a designated space environment.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Vacuum Packaging (AREA)
  • Closures For Containers (AREA)

Abstract

An assembly for trapping air, nitrogen or other gas under atmospheric pressure to create a sealing pressure on a lid of a vacuum chamber carried by a missile. The gas is trapped between the lid and a cover secured to the vacuum chamber by latch means. When the designated space environment is reached a valve is energized to release the sealing pressure and equalize the pressures on opposite sides of the cover for easy opening of the latches.

Description

[ Apr. 2, 1974 1 TRAPPED ATMOSPITERE CLOSURE ASSEMBLY [75] inventor: Rodney L. Raymond, Gardena,
Calif.
[73] Assignee: The United States of America as represented by the Secretary of the Army, Washington, DC.
22 Filed: Nov. 23, 1971 21 Appl. No.: 201,358
[52] US. Cl. 220/44 R, 220/29, 220/55 E I 51 Int. Cl. 865d 51/16, B65d 51/18 [58] Field of Search 220/29, 44 R, 44 A, 55 E; 251/129; 137/587 2,834,504 5/1958 Annicq 220/55 E 1,902,027 3/1933 Henkel... 2,521,308 9/1950 Porter 251/129 Primary ExaminerGeorge E. Lowrance Attorney, Agent, or FirmLawrence A. Neureither; Leonard Flank; Charles R. Carter [57] ABSTRACT An assembly for trapping air, nitrogen or other gas under atmospheric pressure to create a sealing pressure on a lid of a vacuum chamber carried by a missile. The gas is trapped between the lid and a cover secured to the vacuum chamber by latch means. When the designated space environment is reached a valve is energized to release the sealing pressure and equalize [56] i inferences C the pressures on opposite sides of the cover for easy UNITED STATES PATENTS opening of the latches.
3,001,639 9/1961 Addis 206/46 FR 1 Claim, 1 Drawing Figure 9 I5 23 o HI EATENIEDAPR 2 I914 Rodney L.Rc|ymond,
INVENTOR MKZQ Z/ 1 TRAPPED ATMOSPHERE CLOSURE ASSEMBLY BACKGROUND OF THE INVENTION This invention relates to the field of atmospheric closure assemblies. Some missiles carry hardware in a vacuum chamber for use when the missile reaches a designated space environment at higher attitudes. These chambers are closed by a cover which is mechanically latched to the chamber to maintain sealing pressure on the cover. As the higher altitudes are reached the force of the atmosphere is removed from the chamber and cover. The resiliency of the sealing material will force the cover outward and before the designated space environment is reached the vacuum seal becomes completely dependent upon the mechanical latches. When the designated space environment is reached a large force must be applied to the latches to release the cover thus draining missile power.
SUMMARY OF THE INVENTION BRIEF DESCRIPTION OF THE DRAWING The single FlGURE shown is a section view of the closure assembly.
DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to the drawing reference numeral 1 identifies a vacuum chamber for carrying hardware for use in a missile after the missile has reached a desired space environment. An end of the vacuum chamber is provided with an outwardly projecting lip 3. A lid 5 engages the end of the vacuum chamber and the lid includes a resilient means 7 for sealing the vacuum chamber. Disposed above the lid is a cover 9 provided with a downwardly extending flange 11 which includes a seal 13 for trapping air, nitrogen or other gas at atmospheric pressure in a space 15 equal to the outside environment. The inside flange 11 is closely fitted with the 2 outside dimensions of lip 3 so that seal 13 can be effective under varying atmospheric pressure changes. The cover is provided with a plurality of mechanical latches 17 for locking the cover to the vacuum chamber. The distance flange 11 extends from the cover is designed so that the space 15 is provided when latch ends 19 en gages the underside of flange 11 and lip 3. A solenoid operated valve 21 is mounted on the cover for releasing the trapped pressure in space 15 through opening 23 when the solenoid is energized by power being applied to wires 25.
In operation the vacuum chamber 1 is evacuated by means 27 until a pressure of l4.7 PSI is created on the outside of lid 5. Closing the cover 9 traps approximately one atmosphere pressure between the lid and cover 9. As the assembly is taken to higher altitudes the pressure outside the cover .and vacuum chamber becomes less but the atmospheric pressure between the cover and lid remain the same due to the sealing arrangement 13. Since this trapped atmosphere cannot escape it creates a sealing force on the lid while the cover is restrained by the latches. When the desired space environment is reached the solenoid valve is energized and the pressure in space 15 is released into space through opening 23. The latches can be very easily opened after dumping since the pressures outside the cover, between the cover and lid, and in the vacuum chamber are equal.
I claim:
1. A trapped atmosphere closure assembly on a vacuum chamber contained in a missile comprising: a lid having seal means thereon for sealing said vacuum chamber; a cover connected to said vacuum chamber by pivoted latches; said cover being spaced from said lid to provide an air space therebetween for maintaining a sealing force under atmospheric pressure on said lid; said airspace being sealed by means including a lip projecting from said vacuum chamber, a downwardly extending flange for engagement with said lip and a seal carried by said flange to engage the vertical surface said lip; said lid seal means engaging the horizontal surface of said lip; said cover being provided with an .opening for communicating the space between said lid and said cover with the outside environment; and a solenoid valve carried by said cover for controling said opening and releasing said sealing force when the missile has taken the vacuum chamber to a designated space environment.

Claims (1)

1. A trapped atmosphere closure assembly on a vacuum chamber contained in a missile comprising: a lid having seal means thereon for sealing said vacuum chamber; a cover connected to said vacuum chamber by pivoted latches; said cover being spaced from said lid to provide an air space therebetween for maintaining a sealing force under atmospheric pressure on said lid; said air space being sealed by means including a lip projecting from said vacuum chamber, a downwardly extending flange for engagement with said lip and a seal carried by said flange to engage the vertical surface said lip; said lid seal means engaging the horizontal surface of said lip; said cover being provided with an opening for communicating the space between said lid and said cover with the outside environment; and a solenoid valve carried by said cover for controling said opening and releasing said sealing force when the missile has taken the vacuum chamber to a designated space environment.
US00201358A 1971-11-23 1971-11-23 Trapped atmosphere closure assembly Expired - Lifetime US3800972A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20135871A 1971-11-23 1971-11-23

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US3800972A true US3800972A (en) 1974-04-02

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098428A (en) * 1977-01-08 1978-07-04 Nikku Industry Co., Ltd. Tank for pitch impregnation therein
US4259979A (en) * 1976-08-21 1981-04-07 Leybold - Heraeus Gmbh Closure fixture and assembly cap
US4355742A (en) * 1979-02-05 1982-10-26 Scholle Corporation Dispenser spigot for viscous material
US5002196A (en) * 1989-10-20 1991-03-26 John Bassili Pressure vessel with removable sealing lid
US5263518A (en) * 1990-08-16 1993-11-23 Applied Materials, Inc. Method and apparatus for reducing particulate generation caused by door or cover flexing on high vacuum equipment
US5284175A (en) * 1993-02-16 1994-02-08 James Mykytyn Capping apparatus and method
US5501357A (en) * 1994-03-14 1996-03-26 Fullin; Joe Sealing device for metallic containers
US5564480A (en) * 1995-02-24 1996-10-15 Chen; Chen-Hai Vacuum canister
DE19643549A1 (en) * 1996-10-24 1998-04-30 Leybold Systems Gmbh Seal arrangement for vacuum device
US6053347A (en) * 1998-12-15 2000-04-25 Fullin; Joe Sealing device for metallic containers
US20070175897A1 (en) * 2006-01-24 2007-08-02 Labcyte Inc. Multimember closures whose members change relative position
US8678230B2 (en) 2010-07-30 2014-03-25 Snapware Corporation Vessels with air-tight lid systems
US20140091582A1 (en) * 2010-01-05 2014-04-03 Joseph Michael Manahan Enclosure clamps and clamp systems
US9108776B2 (en) 2012-03-09 2015-08-18 Wki Holding Company, Inc. Lid, and container system and lid
CN109883275A (en) * 2019-02-27 2019-06-14 上海机电工程研究所 Easy to disassemble and anti-dropout guided missile tail-hood

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1902027A (en) * 1931-11-19 1933-03-21 Norman F Henkel Relief valve
US2521308A (en) * 1945-12-22 1950-09-05 Louis M Porter Vent structure for incubators
US2834504A (en) * 1953-11-20 1958-05-13 Annicq Joseph Pressure vessel locking mechanism
US3001639A (en) * 1955-12-17 1961-09-26 Bulpitt And Sons Ltd Locating device for articles in a container

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1902027A (en) * 1931-11-19 1933-03-21 Norman F Henkel Relief valve
US2521308A (en) * 1945-12-22 1950-09-05 Louis M Porter Vent structure for incubators
US2834504A (en) * 1953-11-20 1958-05-13 Annicq Joseph Pressure vessel locking mechanism
US3001639A (en) * 1955-12-17 1961-09-26 Bulpitt And Sons Ltd Locating device for articles in a container

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4259979A (en) * 1976-08-21 1981-04-07 Leybold - Heraeus Gmbh Closure fixture and assembly cap
US4098428A (en) * 1977-01-08 1978-07-04 Nikku Industry Co., Ltd. Tank for pitch impregnation therein
US4355742A (en) * 1979-02-05 1982-10-26 Scholle Corporation Dispenser spigot for viscous material
US5002196A (en) * 1989-10-20 1991-03-26 John Bassili Pressure vessel with removable sealing lid
US5263518A (en) * 1990-08-16 1993-11-23 Applied Materials, Inc. Method and apparatus for reducing particulate generation caused by door or cover flexing on high vacuum equipment
US5284175A (en) * 1993-02-16 1994-02-08 James Mykytyn Capping apparatus and method
US5501357A (en) * 1994-03-14 1996-03-26 Fullin; Joe Sealing device for metallic containers
US5564480A (en) * 1995-02-24 1996-10-15 Chen; Chen-Hai Vacuum canister
DE19643549A1 (en) * 1996-10-24 1998-04-30 Leybold Systems Gmbh Seal arrangement for vacuum device
DE19643549C2 (en) * 1996-10-24 1998-08-27 Leybold Systems Gmbh Sealing arrangement for the pressure-tight shut-off of a vacuum apparatus
US6053347A (en) * 1998-12-15 2000-04-25 Fullin; Joe Sealing device for metallic containers
US20070175897A1 (en) * 2006-01-24 2007-08-02 Labcyte Inc. Multimember closures whose members change relative position
US8361418B2 (en) 2006-01-24 2013-01-29 Labcyte Inc. Method for storing fluid with closure including members with changeable relative positions and device thereof
US20140091582A1 (en) * 2010-01-05 2014-04-03 Joseph Michael Manahan Enclosure clamps and clamp systems
US9221587B2 (en) 2010-01-05 2015-12-29 Cooper Technologies Company Enclosure clamps and clamp systems
US9284101B2 (en) * 2010-01-05 2016-03-15 Cooper Technologies Company Enclosure clamps and clamp systems
US8678230B2 (en) 2010-07-30 2014-03-25 Snapware Corporation Vessels with air-tight lid systems
US9108776B2 (en) 2012-03-09 2015-08-18 Wki Holding Company, Inc. Lid, and container system and lid
CN109883275A (en) * 2019-02-27 2019-06-14 上海机电工程研究所 Easy to disassemble and anti-dropout guided missile tail-hood
CN109883275B (en) * 2019-02-27 2021-05-11 上海机电工程研究所 Guided missile tail cover convenient to dismouting and anti-drop

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