US4030383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nose piece for screwguns
Assignee: Individual
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Filing: 1976-06-30
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Granted: 1977-06-21
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Expires: 1996-06-30
Abstract
Abstract An attachment for a screwgun for driving screws to a predetermined depth. The device consists of a base member formed with threads for threadable attachment to the head of a screwgun a sleeve formed with threads for threadable attachment to the base member and a spring attached to the base and bearing against the sleeve for holding the sleeve in a preselected position.
Inventors
- 👤 John Bradley Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:49
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/0064
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
150 words
A nose piece for a screwgun having an externally threaded annular head surrounding the rotatable power driven shaft comprising: a. a base member including a cylindrical internally threaded first wall adapted for threadably mating with said externally threaded annular screwgun head, a second cylindrical externally threaded wall and spring end receiving means; b. a cylindrical nose piece member having a portion internally threaded for threadably mating with said second cylindrical threaded wall of said base member, a spring retaining planar annular surface presented toward said base member and a planar annular face adapted for engaging a work surface; and c. a spring coaxially surrounding said second wall of said base member having a first end engaging said spring receiving means on said base member and having a second end slidably engaging said spring retaining planar annular surface and biasing said base member and nose piece members away from one another.
Claim 2
Dependent Claim
150 words
A nose piece for a screwgun having an externally threaded annular head surrounding the rotatable power driven shaft comprising: a. a base member including a cylindrical internally threaded first wall adapted for threadably mating with said externally threaded annular screwgun head, a second cylindrical externally threaded wall and spring end receiving means; b. a cylindrical nose piece member having a portion internally threaded for threadably mating with said second cylindrical threaded wall of said base member, a spring retaining planar annular surface presented toward said base member and a planar annular face adapted for engaging a work surface; and c. a spring coaxially surrounding said second wall of said base member having a first end engaging said spring receiving means on said base member and having a second end slidably engaging said spring retaining planar annular surface and biasing said base member and nose piece members away from one another.
Claim 3
Dependent Claim
47 words
A nose piece as described in claim 1 comprising: a. said second end of said spring is formed with indexing means; and b. said spring retaining planar annular surface of said nose piece is formed with spaced indents for slidably receiving said second end of said spring.
Claim 4
Dependent Claim
32 words
A nose piece as described in claim 2 comprising: a. said first end of said spring is connected to said base member to prevent rotation of said spring relative to said base.
Claim 5
Dependent Claim
46 words
A nose piece as described in claim 1 comprising: a. said base member is formed with an internal annular shoulder adjacent said first wall; and b. a compressible O-ring dimensioned for registration with said annular shoulder and adapted for frictionally engaging said head of said screwgun.
Claim 6
Dependent Claim
21 words
A nose piece as described in claim 1 comprising: a. said cylindrical nose piece member is constructed from a non-magnetic material.
Claim 7
Dependent Claim
25 words
A nose piece as described in claim 5 comprising: a. said base member, cylindrical nose piece member and said spring are constructed from metal materials.
Claim 8
Dependent Claim
42 words
A nose piece as described in claim 1 comprising: a. said base member and cylindrical nose piece members are formed with openings therethrough having a selected diameter adapted for receiving one-fourth inch, five-sixteenths inch and three-eighths inch hex head washer head screws.
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) | 1980-06-20 | 1980-12-20 | 1981-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-20 | 1984-12-20 | 1985-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-20 | 1988-12-20 | 1989-06-21 | $7700.00 | Window Closed / Lapsed |