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US4229999A Expired / Lapsed US ⏱️ 0.0 years remaining

Valve adjustment tool

Assignee: Individual
•
Filing: 1979-06-11
•
Granted: 1980-10-28
•
Expires: 1999-06-11
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Abstract

Abstract The valve adjustment tool includes an elongated barrel having a bore therethrough. The upper portion of the barrel is provided with a tool land and a length of external threads. The lower end of the barrel is provided with an integral collet which forms a nut socket. The collet is surrounded by a compression collar. An elongated internally threaded sleeve overlays the barrel. The sleeve abuts the compression collar. When the sleeve is threaded downwardly on the barrel, the collar compresses the collet. When the sleeve is threaded upwardly on the barrel, the collar is free to move and the collet assumes its uncompressed state. An elongated valve adjuster driver is also provided. The driver is provided with a large disc shaped knob at its upper end and an engagement lug at its lower end. The driver normally reposes within the through-bore of the barrel and is rotatable therein and removable therefrom. The top of the disc shaped knob provides a landing for the foot of a dial indicator.

Inventors

  • 👤 Joseph G. Rottigni

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 02:08
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/14; B25B27/24

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 117 words
A tool comprising: a barrel having a bore therethrough and provided with a collet portion at its lower end and external threads intermediate the ends of the barrel; a collar overlaying and surrounding said collet portion and movable between a first position wherein said collet portion is compressed and a second position wherein said collet portion is uncompressed; an internally threaded sleeve threadably engaging said barrel, the lower end of said sleeve confronting the upper end of the collar; and a rotatable and axially adjustable driver reposing within the bore of the barrel, said driver having an upper end provided with an enlarged disc shaped knob and having a lower end provided with an object engaging means.
Claim 2
Dependent Claim 117 words
A tool comprising: a barrel having a bore therethrough and provided with a collet portion at its lower end and external threads intermediate the ends of the barrel; a collar overlaying and surrounding said collet portion and movable between a first position wherein said collet portion is compressed and a second position wherein said collet portion is uncompressed; an internally threaded sleeve threadably engaging said barrel, the lower end of said sleeve confronting the upper end of the collar; and a rotatable and axially adjustable driver reposing within the bore of the barrel, said driver having an upper end provided with an enlarged disc shaped knob and having a lower end provided with an object engaging means.
Claim 3
Dependent Claim 25 words
A tool according to claim 1 wherein: said collet portion comprises a nut engaging socket having vertically disposed slots in the sidewalls of the socket.
Claim 4
Dependent Claim 48 words
A tool according to claim 2 wherein: the internal diameter of the lower portion of the sleeve is larger than the internal diameter of the upper portion of the sleeve and the internal threads of the sleeve are located along the smaller diameter upper portion of the sleeve.
Claim 5
Dependent Claim 29 words
A tool according to claim 1 wherein: said barrel is provided with a tool land at its upper end and said land extends above the top of said sleeve.

References Cited (Backward Citations)

US1544520A Cited
US2561407A Cited
US2601796A Cited
FR1221806A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1983-10-28 1984-04-28 1984-10-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1987-10-28 1988-04-28 1988-10-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1991-10-28 1992-04-28 1992-10-28 $7700.00 Window Closed / Lapsed

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