Patent US5631999A successfully refreshed from Google Patents.
Patent US3797547A successfully refreshed from Google Patents.
US3797547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a locking nut with an insert
Assignee: Individual
•
Filing: 1971-05-10
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Granted: 1974-03-19
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Expires: 1991-05-10
Abstract
Abstract A method of producing a locking nut with a resilient insert on its face is disclosed. An ordinary four-sided nut is pressed between a die provided with a flared opening, and a punch provided with a tapered lower end to match the shape of the die. Each corner of the nut is drawn to produce outwardly opening thin tabs, which tabs are subsequently folded over an insert placed on the nut.
Inventors
- 👤 K Shinjo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:09
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/28; F16B39/34; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/947
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
118 words
A locking nut comprising: a. a metal nut having at least four sides and with a generally planar end face having a threaded hole extending therethrough and having at least two integral tabs extending from the periphery of one face of said nut and respectively extending from at least two rounded corners of said nut from which said tabs have been drawn, and spaced apart along said periphery so as to be in effective insert-retaining relationship with one another; and b. a non-metallic resilient insert having an aperture of smaller diameter than said thread hole of said nut and axially aligned therewith, said insert being secured to said face of said nut by said at least two tabs.
Claim 2
Dependent Claim
118 words
A locking nut comprising: a. a metal nut having at least four sides and with a generally planar end face having a threaded hole extending therethrough and having at least two integral tabs extending from the periphery of one face of said nut and respectively extending from at least two rounded corners of said nut from which said tabs have been drawn, and spaced apart along said periphery so as to be in effective insert-retaining relationship with one another; and b. a non-metallic resilient insert having an aperture of smaller diameter than said thread hole of said nut and axially aligned therewith, said insert being secured to said face of said nut by said at least two tabs.
Claim 3
Dependent Claim
99 words
A locking nut comprising: a. a four sided nut with a generally planar end face having a threaded hole extending therethrough; b. an insert of non-metallic resilient material having an aperture smaller than that of said threaded hole of said nut and axially aligned therewith; and c. four tabs spaced apart along the periphery of said face of said nut and extending from rounded corners of said nut from which said tabs have been drawn, said tabs having portions folded over said insert to secure said insert in said axially aligned relationship with said thread hole of said nut.
Claim 4
Dependent Claim
99 words
A locking nut comprising: a. a four sided nut with a generally planar end face having a threaded hole extending therethrough; b. an insert of non-metallic resilient material having an aperture smaller than that of said threaded hole of said nut and axially aligned therewith; and c. four tabs spaced apart along the periphery of said face of said nut and extending from rounded corners of said nut from which said tabs have been drawn, said tabs having portions folded over said insert to secure said insert in said axially aligned relationship with said thread hole of said nut.
Claim 5
Dependent Claim
14 words
The locking nut according to claim 2 wherein said insert is composed of nylon.
References Cited (Backward Citations)
US135864A
Cited
US1874829A
Cited
GB541697A
Cited
US2330999A
Cited
US2450694A
Cited
AU123346A
Cited
US3018519A
Cited
US3316338A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |