US3757407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magazine holding a multiple number of screws to be used wth an electric drill
Assignee: Individual
•
Filing: 1972-03-02
•
Granted: 1973-09-11
•
Expires: 1992-03-02
Abstract
Abstract This invention relates to a cartridge or magazine holding a multiple number of screws to be used in connection with an electric drill having a screw driver type blade so that the operator may insert a multiple number of screws without having to place each screw individually into place prior to use of the drill.
Inventors
- 👤 R Bomar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:24
CPC Classifications
B; B23; B23Q; B23Q7/00; B23Q7/10; B25; B25B; B25B23/00; B25B23/02; B25B23/04; B25B23/06; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53478; Y10T29/53487; Y10T29/535; Y10T29/53687
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
50 words
A cartridge adapted to hold a multiple number of screws for use with a drill comprising an elongated cartridge chamber, spring means to force the screws to the top position, a head secured to the top of the cartridge, positioners in said head to hold the top screw in position.
Claim 2
Dependent Claim
50 words
A cartridge adapted to hold a multiple number of screws for use with a drill comprising an elongated cartridge chamber, spring means to force the screws to the top position, a head secured to the top of the cartridge, positioners in said head to hold the top screw in position.
Claim 3
Dependent Claim
35 words
The device of claim 1 wherein said positioners comprise a multiple number of ball bearings, springs forcing said ball bearings to hold the top screw in positon and screws securing said springs to said head.
Claim 4
Dependent Claim
22 words
The device of claim 1 wherein said head contains a groove adaptable to hold a clamp to secure two heads in series.
Claim 5
Dependent Claim
21 words
The device of claim 1 wherein said spring means comprises multiple springs secured to the bottom and top of said cartridge.
Claim 6
Dependent Claim
70 words
A cartridge adapted to hold a multiple number of screws for use with a drill comprising: a. An elongated cartridge chamber. b. A base for supporting said screws. c. Springs attached to the top of said chamber and to said base to urge the screws to the top of said chamber. d. Head attached to the top of said cartridge. e. Positioners in said head to hold the top screw.
Claim 7
Dependent Claim
70 words
A cartridge adapted to hold a multiple number of screws for use with a drill comprising: a. An elongated cartridge chamber. b. A base for supporting said screws. c. Springs attached to the top of said chamber and to said base to urge the screws to the top of said chamber. d. Head attached to the top of said cartridge. e. Positioners in said head to hold the top screw.
Claim 8
Dependent Claim
24 words
The device of claim 5 wherein said head is attached to said elongated cartridge chamber by shoulders slidingly received in slots in the head.
Claim 9
Dependent Claim
35 words
The device of claim 5 wherein said positioners comprise a multiple number of ball bearings, spring forcing said ball bearings to hold the top screw in position and screws securing said springs to said head.
Claim 10
Dependent Claim
21 words
The device of claim 5 wherein a collar is slidingly fastened to the head to connect said heaD to a drill.
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) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |