FR2282974A1 - Pleated anti-noise skirt for pneumatic drill - has basically pleated open tube enveloping lower drill body and bit - Google Patents

Pleated anti-noise skirt for pneumatic drill - has basically pleated open tube enveloping lower drill body and bit

Info

Publication number
FR2282974A1
FR2282974A1 FR7430117A FR7430117A FR2282974A1 FR 2282974 A1 FR2282974 A1 FR 2282974A1 FR 7430117 A FR7430117 A FR 7430117A FR 7430117 A FR7430117 A FR 7430117A FR 2282974 A1 FR2282974 A1 FR 2282974A1
Authority
FR
France
Prior art keywords
pleated
bit
basically
skirt
compressed air
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.)
Withdrawn
Application number
FR7430117A
Other languages
French (fr)
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 FR7430117A priority Critical patent/FR2282974A1/en
Publication of FR2282974A1 publication Critical patent/FR2282974A1/en
Withdrawn legal-status Critical Current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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

The anti-noise skirt (5) for compressed air pistolet (1) actuated percussion tools is designed to reduce noise whilst maintaining compressed air exhaust (13) and intake. It comprises a basally open supple elastic tube (5) which envelopes the lower drill body (1) and bit (2), the upper tube end (6) being fixed to the body pref via a metal collar and at a point above the compressed air exhaust ports (4). Pref. the tube (5) is of rubber or plastic, and is longitudinally pleated whereby the skirt bottom can follow ground contours and can be compressed easily as the drill bit penetrates the ground.
FR7430117A 1974-08-29 1974-08-29 Pleated anti-noise skirt for pneumatic drill - has basically pleated open tube enveloping lower drill body and bit Withdrawn FR2282974A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7430117A FR2282974A1 (en) 1974-08-29 1974-08-29 Pleated anti-noise skirt for pneumatic drill - has basically pleated open tube enveloping lower drill body and bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7430117A FR2282974A1 (en) 1974-08-29 1974-08-29 Pleated anti-noise skirt for pneumatic drill - has basically pleated open tube enveloping lower drill body and bit

Publications (1)

Publication Number Publication Date
FR2282974A1 true FR2282974A1 (en) 1976-03-26

Family

ID=9142805

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7430117A Withdrawn FR2282974A1 (en) 1974-08-29 1974-08-29 Pleated anti-noise skirt for pneumatic drill - has basically pleated open tube enveloping lower drill body and bit

Country Status (1)

Country Link
FR (1) FR2282974A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4558763A (en) * 1979-05-22 1985-12-17 Montabert S.A. Muffler for a pneumatic hammer
US4986371A (en) * 1990-01-08 1991-01-22 Lowe Wayne L Safety deflector for air hammer and concrete breaker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4558763A (en) * 1979-05-22 1985-12-17 Montabert S.A. Muffler for a pneumatic hammer
US4986371A (en) * 1990-01-08 1991-01-22 Lowe Wayne L Safety deflector for air hammer and concrete breaker

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Legal Events

Date Code Title Description
ST Notification of lapse