US4008741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carpenter's tool
Assignee: Individual
•
Filing: 1976-05-20
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Granted: 1977-02-22
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Expires: 1996-05-20
Abstract
Abstract A nail set tool to facilitate driving a nail set and having a resilient body with a truncated conical projection, an upper surface for receiving the impact force from a hammer blow, a lower surface of the projection adapted for bearing engagement with the workpiece, and an elongate axial hole extending therethrough for holding the nail set. The resilient body is compressed by the force of the blow received by the upper surface thereof and resiliently opposes the impact force with increased resilient force during increased compression to effectively limit the travel of the hammer, thus preventing overdriving of the nail set. The resilient body also shields the workpiece from the hammer. A flexible blade attached to the projection facilitates employment of the tool in otherwise inaccessible areas. The nail set has a shank extending through the hole, a boss overlying the upper surface of the body, and a head for receiving the hammer blow.
Inventors
- 👤 Frederick W. Holstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:07
CPC Classifications
B; B25; B25C; B25C9/00; B25C3/00; B25C3/006; B25C3/008
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
223 words
A nail set tool for limiting the travel of a nail set toward a workpiece when a hammer blow is applied, said tool having a resilient flexible body with an upper surface for receiving the impact force of a hammer blow, a lower surface for bearing engagement with the workpiece during the application of the blow, means defining a recess at the upper surface of said body, and an elongate hole extending between the recess and said body lower surface for guiding the nail set during the application of the blow, said nail set having an elongate shank extending into the hole with a nail-engaging end located adjacent the lower surface, a head attached to and having a transverse dimension greater than that of the shank and projecting above the upper surface for striking engagement with a hammer, and a boss attached to the shank between the head and the end of the shank and positioned in said recess with an under surface thereof engaged with a bottom of said recess, resilient means on said body engaging said boss to hold the nail set on said body and said boss against the bottom of said recess and said flexible body being compressed to resiliently oppose the impact force applied to the nail set through the engagement of the boss with the upper surface.
Claim 2
Dependent Claim
223 words
A nail set tool for limiting the travel of a nail set toward a workpiece when a hammer blow is applied, said tool having a resilient flexible body with an upper surface for receiving the impact force of a hammer blow, a lower surface for bearing engagement with the workpiece during the application of the blow, means defining a recess at the upper surface of said body, and an elongate hole extending between the recess and said body lower surface for guiding the nail set during the application of the blow, said nail set having an elongate shank extending into the hole with a nail-engaging end located adjacent the lower surface, a head attached to and having a transverse dimension greater than that of the shank and projecting above the upper surface for striking engagement with a hammer, and a boss attached to the shank between the head and the end of the shank and positioned in said recess with an under surface thereof engaged with a bottom of said recess, resilient means on said body engaging said boss to hold the nail set on said body and said boss against the bottom of said recess and said flexible body being compressed to resiliently oppose the impact force applied to the nail set through the engagement of the boss with the upper surface.
Claim 3
Dependent Claim
36 words
The nail set tool of claim 1 wherein the resilient means comprises a lip overlying a portion of the boss when inserted into the recess to resiliently hold the nail set in engagement with the body.
Claim 4
Dependent Claim
54 words
The nail set tool of claim 2 with a plurality of said nail sets, each of said nail sets having a different shank diameter less than the transverse dimension of the hole, and said body includes means engageable with the boss of each of said nail sets for holding the shank within the hole.
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) | 1980-02-22 | 1980-08-23 | 1981-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-22 | 1984-08-23 | 1985-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-22 | 1988-08-23 | 1989-02-22 | $7700.00 | Window Closed / Lapsed |