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GB1116709A - Improvements in pneumatic tools having exhaust noise reducing means - Google Patents

Improvements in pneumatic tools having exhaust noise reducing means

Info

Publication number
GB1116709A
GB1116709A GB38767/66A GB3876766A GB1116709A GB 1116709 A GB1116709 A GB 1116709A GB 38767/66 A GB38767/66 A GB 38767/66A GB 3876766 A GB3876766 A GB 3876766A GB 1116709 A GB1116709 A GB 1116709A
Authority
GB
United Kingdom
Prior art keywords
exhaust
rings
duct
modification
reducing means
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
Application number
GB38767/66A
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.)
Atlas Copco AB
Original Assignee
Atlas Copco AB
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 Atlas Copco AB filed Critical Atlas Copco AB
Publication of GB1116709A publication Critical patent/GB1116709A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/11—Arrangements of noise-damping means
    • B25D17/12—Arrangements of noise-damping means of exhaust silencers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/082—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases passing through porous members

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Tires In General (AREA)
  • Duct Arrangements (AREA)

Abstract

1,116,709. Exhaust silencers. ATLAS COPCO AKTIEBOLAG. Aug. 31, 1966 [Sept. 10, 1965], No. 38768/66. Heading F1B. [Also in Division B3] A pneumatic screwdriver or drilling machine 10, Fig. 1, comprises a rotary vane-motor, an annular exhaust duct 32, and two rings 36 of rigid porous material, which reduce the noise of the exhaust issuing from the exhaust passages 27. The rings may be made of porous sintered bronze having lugs 37, for axially spacing the rings. Three porous rings (40), Fig. 4 (not shown), may be provided, spaced by sleeves (41). In a modification, the exhaust duct (32), Fig. 6 (not shown), is arranged so that the exhaust is directed forwardly on to the work. In a further modification, the duct (32'), Fig. 7 (not shown) is arranged adjacent the hand grip (30). In another modification, the duct (32"), Fig. 8 (not shown), has a flange 53, and radial outlets 54 direct the exhaust in a radial direction.
GB38767/66A 1965-09-10 1966-08-31 Improvements in pneumatic tools having exhaust noise reducing means Expired GB1116709A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US486317A US3270834A (en) 1965-09-10 1965-09-10 Pneumatic tool having exhaust noise reducing means

Publications (1)

Publication Number Publication Date
GB1116709A true GB1116709A (en) 1968-06-12

Family

ID=23931415

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38767/66A Expired GB1116709A (en) 1965-09-10 1966-08-31 Improvements in pneumatic tools having exhaust noise reducing means

Country Status (7)

Country Link
US (1) US3270834A (en)
CH (1) CH440741A (en)
DE (1) DE1946215U (en)
ES (1) ES331021A1 (en)
GB (1) GB1116709A (en)
NL (1) NL6612739A (en)
SE (1) SE346246B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3509934A1 (en) * 1984-03-20 1985-10-03 Atlas Copco AB, Nacka PNEUMATICALLY OPERATED TURNING TOOL

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6604150A (en) * 1966-03-30 1967-10-02
US3672465A (en) * 1970-10-15 1972-06-27 Blatt Leland F Gas exhaust silencer
US3809179A (en) * 1973-04-18 1974-05-07 Dresser Ind Exhaust muffler for pneumatic tools
US3960239A (en) * 1973-08-15 1976-06-01 Barry Wright Corporation Noise-reducing fluid-flow devices
US4018291A (en) * 1974-12-23 1977-04-19 Allied Steel & Tractor Products, Incorporated Pneumatic hammer
GB2149465B (en) * 1983-11-15 1987-09-09 Desoutter Ltd A pneumatically operated power tool
US4693339A (en) * 1986-10-16 1987-09-15 Newport News Shipbuilding And Dry Dock Company Muffler for gas inducting machinery generating low frequency noise
US5142952A (en) * 1990-05-21 1992-09-01 Snap-On Tools Corporation Ratchet tool
US5581055A (en) * 1995-08-04 1996-12-03 Kevin G. Self Muffler for air operated hand tools and other pneumatic devices
US7404450B2 (en) 2000-01-27 2008-07-29 S.P. Air Kabusiki Kaisha Pneumatic rotary tool
US6158528A (en) 2000-01-27 2000-12-12 S.P. Air Kabusiki Kaisha Hand-held pneumatic rotary drive device
JP3746482B2 (en) * 2000-09-08 2006-02-15 エス・ピー・エアー株式会社 Pneumatic rotary tool
US6530436B2 (en) * 2001-03-29 2003-03-11 Snap-On Technologies, Inc. Pneumatic tool with muffler bypass mechanism
SE529124C2 (en) * 2005-04-05 2007-05-08 Atlas Copco Tools Ab Pneumatic tool with exhaust silencer
US20070056758A1 (en) * 2005-08-24 2007-03-15 Sunmatch Industrial Co., Ltd. Rear exhaust type pneumatic tool
US20080029281A1 (en) * 2006-04-27 2008-02-07 Sun Yung-Yung Pneumatic tool
US20070251709A1 (en) * 2006-04-27 2007-11-01 Sun Yung-Yung Pneumatic tool
CA2711385A1 (en) * 2008-01-04 2009-07-16 Audeval Solutions Inc. Muffler for pneumatic handheld tool
CN110500139B (en) * 2019-09-18 2024-08-30 保定市鑫金燃料有限公司 Pneumatic device of low-noise drilling machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2950775A (en) * 1958-01-13 1960-08-30 Aro Equipment Corp Exhaust noise reducing and air diffusing means for pneumatic motors
BE649108A (en) * 1963-06-10

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3509934A1 (en) * 1984-03-20 1985-10-03 Atlas Copco AB, Nacka PNEUMATICALLY OPERATED TURNING TOOL
GB2157213A (en) * 1984-03-20 1985-10-23 Atlas Copco Ab Pneumatic rotary tool

Also Published As

Publication number Publication date
DE1946215U (en) 1966-09-15
US3270834A (en) 1966-09-06
NL6612739A (en) 1967-03-13
ES331021A1 (en) 1967-07-01
SE346246B (en) 1972-07-03
CH440741A (en) 1967-07-31

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