Patent US3353580A successfully refreshed from Google Patents.
US3353580A
Expired / Lapsed
US
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Nut and bolt construction
Assignee: F AND E Manufacturing CO
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Filing: 1966-05-12
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Granted: 1967-11-21
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Expires: 1986-05-12
Abstract
No abstract record available.
Inventors
- 👤 Benjamin C Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:01
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: 2
Claim 1
Independent Claim
108 words
A NUT CONSTRUCTION COMPRISING A NUT BODY HAVING A THREADED CIRCULAR OPENING THERETHROUGH, AND AN INSERT OF LOW FRICTION MATERIAL HAVING A NONCIRCULAR OPENING THEREIN, SAID BODY AND INSERT HAVING INTERENGAGNG PORTIONS FRICTIONALLY YET ROTATABLY MOUNTING THE INSERT ON THE BODY, SAID NON-CIRCULAR OPENING HAVING AT LEAST ONE DIAMETRAL DIMENSION LESS THAN THE DIAMETER OF THE CIRCULAR OPENING, AND A BOLT HAVING COMPLEMENTARY NON-CIRCULAR CONFIGURATION WITH A THREAD THEREON WHEREBY SAID NUT AND BOLT CAN BE THREADED TOGETHER, SAID INSERT ROTATING RELATIVE TO SAID BODY DURING THE THREADING MOVEMENT BUT OPERABLE TO RETARD THREADING BY FRICTIONAL ENGAGEMENT OF A PORTION THEREOF WITH A PORTION OF THE NUT BODY.
Claim 2
Dependent Claim
108 words
A NUT CONSTRUCTION COMPRISING A NUT BODY HAVING A THREADED CIRCULAR OPENING THERETHROUGH, AND AN INSERT OF LOW FRICTION MATERIAL HAVING A NONCIRCULAR OPENING THEREIN, SAID BODY AND INSERT HAVING INTERENGAGNG PORTIONS FRICTIONALLY YET ROTATABLY MOUNTING THE INSERT ON THE BODY, SAID NON-CIRCULAR OPENING HAVING AT LEAST ONE DIAMETRAL DIMENSION LESS THAN THE DIAMETER OF THE CIRCULAR OPENING, AND A BOLT HAVING COMPLEMENTARY NON-CIRCULAR CONFIGURATION WITH A THREAD THEREON WHEREBY SAID NUT AND BOLT CAN BE THREADED TOGETHER, SAID INSERT ROTATING RELATIVE TO SAID BODY DURING THE THREADING MOVEMENT BUT OPERABLE TO RETARD THREADING BY FRICTIONAL ENGAGEMENT OF A PORTION THEREOF WITH A PORTION OF THE NUT BODY.
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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |