Patent US4113049A successfully refreshed from Google Patents.
US4113049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Noise reduction device for impact tools
Assignee: Individual
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Filing: 1976-04-14
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Granted: 1978-09-12
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Expires: 1996-04-14
Abstract
Abstract A noise reduction device for use with an impact tool which comprises a deformable block having a flat face and an opening therein for accepting the set of the tool, and a cylindrical housing extending from the block and sealed about the tool, with an open conduit extending from said housing.
Inventors
- 👤 Raymond S. Lieber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:57
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/16; Y; Y10; Y10S; Y10S173/00; Y10S173/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
129 words
A noise reduction device for use with a reciprocating impact tool comprising a rigid cylinder; resilient walls at both ends of said cylinder secured between said cylinder and the outer housing of said tool so as to provide a first compartment about said housing; a second rigid cylinder having a larger diameter than said first rigid cylinder; means for sealing one end of said second cylinder about the outer circumference of said first cylinder; a resilient block having a substantially flat face; an opening in said block for accepting the set of said impact tool, said set being in contact with said resilient block; means for sealing said resilient block within the other end of said second cylinder; and a conduit extending outwardly from said first and second compartments.
Claim 2
Dependent Claim
129 words
A noise reduction device for use with a reciprocating impact tool comprising a rigid cylinder; resilient walls at both ends of said cylinder secured between said cylinder and the outer housing of said tool so as to provide a first compartment about said housing; a second rigid cylinder having a larger diameter than said first rigid cylinder; means for sealing one end of said second cylinder about the outer circumference of said first cylinder; a resilient block having a substantially flat face; an opening in said block for accepting the set of said impact tool, said set being in contact with said resilient block; means for sealing said resilient block within the other end of said second cylinder; and a conduit extending outwardly from said first and second compartments.
Claim 3
Dependent Claim
13 words
The device of claim 1 further comprising sound absorbing material within said compartments.
Claim 4
Dependent Claim
73 words
A noise reduction device for use with an impact tool comprising a deformable block having a substantially flat face; an opening in said block for accepting the set of said tool said set being in contact with said deformable block a cylinder wall extending from said block and sealed about the outer housing of said tool so as to form a at least one compartment; and a conduit extending outwardly from said compartment.
Claim 5
Dependent Claim
73 words
A noise reduction device for use with an impact tool comprising a deformable block having a substantially flat face; an opening in said block for accepting the set of said tool said set being in contact with said deformable block a cylinder wall extending from said block and sealed about the outer housing of said tool so as to form a at least one compartment; and a conduit extending outwardly from said compartment.
Claim 6
Dependent Claim
13 words
The device of claim 3 further comprising sound absorbing material within said compartment.
References Cited (Backward Citations)
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US2789653A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-09-11 | 1982-03-13 | 1982-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-11 | 1986-03-13 | 1986-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-11 | 1990-03-13 | 1990-09-12 | $7700.00 | Window Closed / Lapsed |