GB1075520A - Improvements in silencing devices - Google Patents

Improvements in silencing devices

Info

Publication number
GB1075520A
GB1075520A GB50932/64A GB5093264A GB1075520A GB 1075520 A GB1075520 A GB 1075520A GB 50932/64 A GB50932/64 A GB 50932/64A GB 5093264 A GB5093264 A GB 5093264A GB 1075520 A GB1075520 A GB 1075520A
Authority
GB
United Kingdom
Prior art keywords
silencer
passages
main
casing
air flows
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
GB50932/64A
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.)
Gardner Denver Inc
Original Assignee
Gardner Denver Inc
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 Gardner Denver Inc filed Critical Gardner Denver Inc
Publication of GB1075520A publication Critical patent/GB1075520A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/30—Tamping or vibrating apparatus other than rollers ; Devices for ramming individual paving elements
    • E01C19/34—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S173/00—Tool driving or impacting
    • Y10S173/02—Sound muffling

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Stringed Musical Instruments (AREA)
  • Exhaust Silencers (AREA)
  • Auxiliary Devices For Music (AREA)

Abstract

1,075,520. Percussion drills. GARDNERDENVER CO. Dec. 15, 1964 [Jan. 16, 1964], No. 50932/64. Heading B4C. [Also in Division F1] In a pneumatic tool having a silencer 27 mounted on a casing 13 and communicating with exhaust port 12, the silencer has an unobstructed main passage having peripheral openings which define auxiliary flow paths from the main flow path. Exhaust air flows via port 12, passages 11 and chamber 20 and through three main flow passages in partition 18 to silencer 27 which consists of spaced nylon plates 27. Auxiliary flow paths are formed by the spaces between plates and air flows therethrough into smaller passages between the main passages. The emerging air impinges on deflector 36 and passes to atmosphere through notches 24 in the sidewall of the casing. Silencing is also provided by a resonance chamber 19 and a porous material 36, e.g. felt. In another embodiment the exhaust port emerges directly into a resonance chamber from which separate openings lead to the silencer.
GB50932/64A 1964-01-16 1964-12-15 Improvements in silencing devices Expired GB1075520A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US338037A US3255844A (en) 1964-01-16 1964-01-16 Multi-passage silencer for pneumatic tool

Publications (1)

Publication Number Publication Date
GB1075520A true GB1075520A (en) 1967-07-12

Family

ID=23323137

Family Applications (1)

Application Number Title Priority Date Filing Date
GB50932/64A Expired GB1075520A (en) 1964-01-16 1964-12-15 Improvements in silencing devices

Country Status (4)

Country Link
US (1) US3255844A (en)
AT (1) AT269011B (en)
CH (1) CH424676A (en)
GB (1) GB1075520A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19541295A1 (en) * 1994-11-07 1996-05-23 Max Co Ltd Noise reduction device for a pneumatic nailing machine

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3635299A (en) * 1970-04-20 1972-01-18 Gardner Denver Co Muffler for pneumatic tool
DE2539884C2 (en) * 1975-09-08 1985-07-04 Hilti Ag, Schaan Powder-powered fastening tool with driving piston
US4109756A (en) * 1976-11-17 1978-08-29 Dresser Industries, Inc. High frequency diffusion muffler for gas jets
US4093110A (en) * 1977-03-11 1978-06-06 Olin Corporation Noise and fouling reducer for powder-actuated tool
DE2820842A1 (en) * 1978-05-12 1979-11-22 Sig Schweiz Industrieges PNEUMATICALLY ACTIVATED STRIKING DEVICE
DE2827279C2 (en) * 1978-06-21 1986-06-12 Signode Corp., Glenview, Ill. Exhaust silencer for portable pneumatic driving tools
FR2554752B1 (en) * 1983-11-10 1986-12-26 Charbonnages De France SOUNDPROOFING HOUSING FOR PNEUMATIC DRILLING HAMMER
CH663925A5 (en) * 1984-05-29 1988-01-29 Sig Schweiz Industrieges ARRANGEMENT OF EXPANSION CHAMBERS FOR SOUND PRESSURE DAMPING, USE OF THE SAME AND PNEUMATICALLY OPERATED HAMMER.
US5500494A (en) * 1993-02-19 1996-03-19 Ligman; Gary A. System for modifying operation of pneumatic tool
US5881941A (en) * 1997-06-23 1999-03-16 Basso Industry Corp. Stapler having a silencer
US7681690B2 (en) * 2007-07-13 2010-03-23 Longyear Tm, Inc. Noise abatement device for a pneumatic tool
US7735603B2 (en) * 2008-05-28 2010-06-15 Longyear Tm, Inc. Noise reducing device for a pneumatic tool
US8215449B2 (en) * 2009-12-02 2012-07-10 Longyear Tm, Inc. Muffler system for noise abatement and ice control
US11867102B2 (en) 2019-08-28 2024-01-09 Snap-On Incorporated Pneumatic tool exhaust muffler

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB356864A (en) * 1930-07-11 1931-09-17 Metropolitan Electric Tramways Improvements in or relating to exhaust silencers
US2073480A (en) * 1934-10-04 1937-03-09 Ingersoll Rand Co Muffling device
GB471431A (en) * 1936-03-03 1937-09-03 Frederick Heather Improvements in and relating to silencers for gaseous currents
US2166218A (en) * 1937-04-06 1939-07-18 Ingersoll Rand Co Muffling device
US2789653A (en) * 1954-05-17 1957-04-23 Fannen John Muffler attachment for air driven tools of the impact type
GB842192A (en) * 1957-11-18 1960-07-20 Aro Equipment Corp Exhaust muffling means
US2966138A (en) * 1958-05-12 1960-12-27 Robert C Quackenbush Muffler construction for portable pneumatic tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19541295A1 (en) * 1994-11-07 1996-05-23 Max Co Ltd Noise reduction device for a pneumatic nailing machine

Also Published As

Publication number Publication date
CH424676A (en) 1966-11-15
US3255844A (en) 1966-06-14
AT269011B (en) 1969-03-10

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