US3943587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing threaded nuts and threaded nut articles produced by such method
Assignee: Individual
•
Filing: 1975-07-18
•
Granted: 1976-03-16
•
Expires: 1995-07-18
Abstract
Abstract A method of manufacturing threaded nuts comprises providing a hollow nut casing having the desired geometrical nut profile and having at least one radial slit extending the length of the nut casing so as to render the nut casing inwardly contractible. A coil spring insert is formed with the inner edges of the coils defining a screw thread and the coil spring insert is inserted into the hollow opening in the nut casing. Then radial pressure is applied to the hollow nut casing so as to deform and inwardly contract the nut casing so that it is compressed about the coil spring insert and while in this state, the coil spring insert is welded to the nut casing to form a unitary threaded nut. The welding can be carried out by spot welding, friction welding, electronic welding or other available welding techniques so as to integrate the coil spring insert and nut casing into a one-piece threaded nut article.
Inventors
- 👤 Segismundo Nates Lasky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:24
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/24; B21K; B21K1/00; B21K1/64; F; F16; F16B; F16B37/00; F16B37/12; Y; Y10; Y10S; Y10S470/00; Y10S470/905
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
159 words
A method of manufacturing a threaded nut article comprising the steps of: providing a coil spring insert having a plurality of connected together coils the inner edges of which defines a screw thread; providing a hollow nut casing having an outer profile in the shape of a nut, an inner opening extending through said nut casing and dimensioned to receive therein said coil spring insert, and at least one radial slit extending the length of said nut casing effective to render said nut casing slightly deformable and inwardly contractible when radial inward pressure is applied thereto; positioning said coil spring insert into the nut casing inner opening; applying sufficient radial inward pressure to said nut casing to slightly deform and inwardly contract the same so as to compress it about said coil spring insert; and connecting said nut casing and coil spring insert together during the application of said radial inward pressure to form a unitary threaded nut article.
Claim 2
Independent Claim
159 words
A method of manufacturing a threaded nut article comprising the steps of: providing a coil spring insert having a plurality of connected together coils the inner edges of which defines a screw thread; providing a hollow nut casing having an outer profile in the shape of a nut, an inner opening extending through said nut casing and dimensioned to receive therein said coil spring insert, and at least one radial slit extending the length of said nut casing effective to render said nut casing slightly deformable and inwardly contractible when radial inward pressure is applied thereto; positioning said coil spring insert into the nut casing inner opening; applying sufficient radial inward pressure to said nut casing to slightly deform and inwardly contract the same so as to compress it about said coil spring insert; and connecting said nut casing and coil spring insert together during the application of said radial inward pressure to form a unitary threaded nut article.
Claim 3
Dependent Claim
20 words
A method according to claim 1; wherein said connecting step comprises welding said nut casing and coil spring insert together.
Claim 4
Dependent Claim
32 words
A method according to claim 1; wherein said connecting step comprises spot welding said nut casing and coil spring insert together by applying weld material at the site of said radial slit.
Claim 5
Dependent Claim
32 words
A method according to claim 1; wherein said steps of applying radial pressure and connecting together said nut casing and coil spring insert are carried out simultaneously by a friction welding operation.
Claim 6
Dependent Claim
12 words
A threaded nut article manufactured according to the method of claim 1.
References Cited (Backward Citations)
US1490123A
Cited
US1630958A
Cited
US2079746A
Cited
US2199007A
Cited
DE732020C
Cited
US2407879A
Cited
FR975912A
Cited
US2616474A
Cited
US3272250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-16 | 1979-09-15 | 1980-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-16 | 1983-09-15 | 1984-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-16 | 1987-09-15 | 1988-03-16 | $7700.00 | Window Closed / Lapsed |