US3654832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nail screw fastening system
Assignee: Individual
•
Filing: 1968-10-21
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Granted: 1972-04-11
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Expires: 1988-10-21
Abstract
Abstract A nail screw fastening system comprising a novel nail screw together with a tool head for driving it, the nail screw being easily fabricable by rolling or stamping threads on the pointed end of stamped nail stock so that the thread ridges project radially outward beyond the nail shank, and by cutting V-shaped peripheral notches in the nail head to form flanges. The driving tool head is a cylindrical body adapted at one end for coupling to a source of rotary motion and its other end having an axial passageway of uniform cross section complementary to the cross section of the screw nail head flange and terminating in a permanent magnet end wall.
Inventors
- 👤 Garnet L Lana
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:50
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; F; F16; F16B; F16B23/00; F16B23/0007; Y; Y10; Y10S; Y10S411/00; Y10S411/919
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
132 words
A unitary nail screw fastener adapted to be driven by a rotary driving tool comprising an elongate cylindrical body having a pointed tip at one end thereof and a circumferentially projecting head at the other end thereof, said cylindrical body having threads thereon throughout the length extending from said pointed tip of approximately one-fourth to one-third of the total length of said body, said threads generally projecting radially outwardly beyond the circumference of the remaining said body and being adapted to engage surrounding material to cause longitudinal progression of said nail screw fastener upon rotation thereof by a rotary tool engaging said head, said head defining a predetermined plurality of circumferentially equally spaced radially outwardly extending flanges at said other end for receptive engagement with the head of a rotary driving tool.
Claim 2
Dependent Claim
132 words
A unitary nail screw fastener adapted to be driven by a rotary driving tool comprising an elongate cylindrical body having a pointed tip at one end thereof and a circumferentially projecting head at the other end thereof, said cylindrical body having threads thereon throughout the length extending from said pointed tip of approximately one-fourth to one-third of the total length of said body, said threads generally projecting radially outwardly beyond the circumference of the remaining said body and being adapted to engage surrounding material to cause longitudinal progression of said nail screw fastener upon rotation thereof by a rotary tool engaging said head, said head defining a predetermined plurality of circumferentially equally spaced radially outwardly extending flanges at said other end for receptive engagement with the head of a rotary driving tool.
Claim 3
Dependent Claim
16 words
A nail screw fastener as defined in claim 1, wherein said threads are rolled or stamped.
Claim 4
Dependent Claim
16 words
A nail screw fastener as defined in claim 1, wherein said flanges are three in number.
References Cited (Backward Citations)
US178000A
Cited
US186904A
Cited
FR1193927A
Cited
US963330A
Cited
US1188305A
Cited
US1816162A
Cited
US2248695A
Cited
US2509980A
Cited
US2532296A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |