Patent US3652003A successfully refreshed from Google Patents.
US3652003A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Powder actuated tool
Assignee: General Cable Corp
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Filing: 1970-04-06
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Granted: 1972-03-28
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Expires: 1990-04-06
Abstract
Abstract A powder actuated tool including a barrel with a muzzle affixed to one end is disclosed. A cylinder is movable within the barrel and a piston having a piston rod extending through the muzzle is movable within the cylinder. Stop means are located in the cylinder and the guidepin is located on the barrel. Adjustable means are provided for varying the stroke length of the piston within the cylinder and means are provided for increasing the service life of the piston rod.
Inventors
- 👤 Ignazio Leonardo
- 👤 Harold C Pfeiffer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:18
CPC Classifications
B; B25; B25C; B25C1/00; B25C1/08; B25C1/10; B25C1/14; B25C1/143; B25C1/105
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
60 words
The improved powder actuated tool of claim 1 in which the piston stopping means comprises a piston stop pin mounted on the barrel housing and extending into the bore of the barrel through the slot therein for abutment with a portion of the piston facing in the forward direction when the barrel is moved to the loading and unloading position.
Claim 2
Dependent Claim
24 words
The improved powder actuated tool of claim 2 in which the piston stop pin is mounted adjacent the muzzle end of the barrel housing.
Claim 3
Dependent Claim
99 words
The improved powder actuated tool of claim 1 in which the barrel limiting means comprises an adjusting nut threadedly mounted about the exterior surface of the barrel housing adjacent the forward end of the breech opening thereof for adjustable movement in the forward and the rearward directions in response to rotation thereof, the adjusting nut being adapted for a portion thereof facing in the rearward direction to abut the member fixedly mounted to the barrel when the barrel is moved to the loading and unloading position, thus limiting the forward movement of the barrel to the forward extreme position.
Claim 4
Dependent Claim
78 words
The improved powder actuated tool of claim 4 in which the member fixedly mounted to the barrel comprises a barrel stop pin mounted to the barrel adjacent the breech opening end thereof, the barrel stop pin extending through the cavity in the barrel housing for abutment with the rearward facing portion of the adjusting nut when the barrel is moved to the loading and unloading position, thereby adjustably limiting the sliding of the barrel in the forward direction.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-28 | 1975-09-27 | 1976-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-28 | 1979-09-27 | 1980-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-28 | 1983-09-27 | 1984-03-28 | $7700.00 | Window Closed / Lapsed |