GB1027098A - Percussive drill with noise silencer - Google Patents

Percussive drill with noise silencer

Info

Publication number
GB1027098A
GB1027098A GB7026/65A GB702665A GB1027098A GB 1027098 A GB1027098 A GB 1027098A GB 7026/65 A GB7026/65 A GB 7026/65A GB 702665 A GB702665 A GB 702665A GB 1027098 A GB1027098 A GB 1027098A
Authority
GB
United Kingdom
Prior art keywords
ports
chambers
cylinder
passage
divided
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
GB7026/65A
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.)
Chicago Pneumatic Tool Co LLC
Original Assignee
Chicago Pneumatic Tool Co LLC
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 Chicago Pneumatic Tool Co LLC filed Critical Chicago Pneumatic Tool Co LLC
Publication of GB1027098A publication Critical patent/GB1027098A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Earth Drilling (AREA)

Abstract

1,027,098. Silencing gaseous currents. CHICAGO PNEUMATIC TOOL CO. No. 7026/65. Heading FIB. [Also in Division B4] A pneumatic percussive tool, such as a road breaker, comprises a piston 17 reciprocated in a cylinder 11 under the control of a distributing valve 22, and a silencer unit 34 disposed about the cylinder and exhaust ports 33 and having a plurality of individual sound filter systems each having an upper chamber 57, 58, 59 and a lower chamber 47, 48, 49. The silencer unit is welded to the cylinder 11 and is divided by a partition 46, into upper and lower portions. The upper portion is divided by radial webs into the three upper chambers 57, 58, 59 and the lower portion into the three lower chambers 47, 48, 49. The upper chambers communicate with the exhaust ports 33 via channels 62, 63, Fig. 3 (not shown), a passage 61 and ports 64. The air expands in the upper chambers and then flows via ports 65 into the lower chambers where it then flows to atmosphere, via ports 66, a passage 67 and ports 69.
GB7026/65A 1964-04-03 1965-02-18 Percussive drill with noise silencer Expired GB1027098A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US357039A US3224527A (en) 1964-04-03 1964-04-03 Percussive drill with noise silencer

Publications (1)

Publication Number Publication Date
GB1027098A true GB1027098A (en) 1966-04-20

Family

ID=23404049

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7026/65A Expired GB1027098A (en) 1964-04-03 1965-02-18 Percussive drill with noise silencer

Country Status (3)

Country Link
US (1) US3224527A (en)
DE (2) DE1951498U (en)
GB (1) GB1027098A (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3385395A (en) * 1966-05-02 1968-05-28 Ingersoll Rand Co Muffling system for compressed airoperated drilling apparatus
DE1501030C3 (en) * 1966-11-18 1974-10-10 Danfoss A/S, Nordborg (Daenemark) Silencer arrangement for hermetically sealed refrigeration machines
US3554316A (en) * 1969-11-25 1971-01-12 Chicago Pneumatic Tool Co Detachable elastomer muffler for pneumatic percussive tools
US3635299A (en) * 1970-04-20 1972-01-18 Gardner Denver Co Muffler for pneumatic tool
US3785453A (en) * 1970-12-10 1974-01-15 Carrier Corp Compressor discharge muffling means
US3719251A (en) * 1971-03-31 1973-03-06 Hall Int Inc Diffuser apparatus for pneumatic tools
US3815705A (en) * 1972-12-04 1974-06-11 Thor Power Tool Co Muffler for a pneumatic percussion tool
SE394261B (en) * 1973-12-27 1977-06-20 Atlas Copco Ab SOUND DAMAGE DEVICE FOR MOUNTAIN DRILLS AND MOUNTAIN DRILLING MACHINE WITH SUCH DEVICE
US4018291A (en) * 1974-12-23 1977-04-19 Allied Steel & Tractor Products, Incorporated Pneumatic hammer
DE2539884C2 (en) * 1975-09-08 1985-07-04 Hilti Ag, Schaan Powder-powered fastening tool with driving piston
DE2827279C2 (en) * 1978-06-21 1986-06-12 Signode Corp., Glenview, Ill. Exhaust silencer for portable pneumatic driving tools
US4189917A (en) * 1978-09-18 1980-02-26 Kent Air Tool Company Air hammer and muffler combination
EP0015700B1 (en) * 1979-02-28 1982-07-28 CompAir Construction and Mining Limited Compressed-gas-operated reciprocating-piston devices
FR2487241A1 (en) * 1980-07-25 1982-01-29 Maco Meudon Sa ANTI-FROZEN DEVICE FOR PNEUMATIC TOOLS
FR2710284B1 (en) * 1993-09-23 1995-11-24 Financ Forage Pneumatic percussion device of the jackhammer or concrete breaker type.
WO2010150185A1 (en) * 2009-06-23 2010-12-29 Compair (Sa) (Pty) Ltd Muffler for pneumatic rock drill
US11867102B2 (en) 2019-08-28 2024-01-09 Snap-On Incorporated Pneumatic tool exhaust muffler

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1351122A (en) * 1919-06-30 1920-08-31 Paulson Hans Muffler
GB329237A (en) * 1929-08-21 1930-05-15 Samuel Loader Gamble An improved silencer for pneumatic drills and like percussion tools
GB356171A (en) * 1930-03-28 1931-08-28 George Simpson Improvements relating to exhaust silencers
US2166218A (en) * 1937-04-06 1939-07-18 Ingersoll Rand Co Muffling device
US2545453A (en) * 1945-09-22 1951-03-20 Skilsaw Inc Rotary pneumatic tool
US2561726A (en) * 1946-07-31 1951-07-24 Cherain Oscar Jean Henri Muffler for pneumatic pick hammers and like tools
US2789653A (en) * 1954-05-17 1957-04-23 Fannen John Muffler attachment for air driven tools of the impact type
CH378820A (en) * 1960-03-18 1964-06-15 Sig Schweiz Industrieges Silencer on compressed air tool
GB932373A (en) * 1962-02-28 1963-07-24 Sig Schweiz Industrieges Improvements in and relating to sound deadening devices for compressed air tools

Also Published As

Publication number Publication date
DE1503156B1 (en) 1970-01-29
US3224527A (en) 1965-12-21
DE1951498U (en) 1966-12-08

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