US3370341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for use in tightening a nut and bolt assembly
Assignee: GKN Screws and Fasteners Ltd
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Filing: 1965-12-20
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Granted: 1968-02-27
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Expires: 1985-12-20
Abstract
No abstract record available.
Inventors
- 👤 Robert T Allsop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:31
CPC Classifications
F; F16; F16B; F16B31/00; F16B31/02; F16B31/021; B; B65; B65D; B65D21/00; B65D21/02; B65D21/0209; B65D21/0217; B65D21/0219; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49789; Y10T29/4979; Y10T29/49826; Y10T29/49947; Y10T29/49948
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
METHOD OF TIGHTENING NUTS IN EACH OF TWO NUT AND BOLT ASSEMBLIES COMPRISING: (A) PROVIDING A COMPOUND NUT MEMBER COMPRISING TWO INTERNALLY THREADED NUT BODIES DISPOSED IN AXIAL ALIGNMENT AND A WRENCHING SECTION LOCATED IN BETWEEN SAID NUT BODIES AND CONNECTED TO EACH NUT BODY BY A NECK SECTION ADAPTED TO SHEAR UPON APPLICATION OF A PREDETERMINED TORQUE THERETO, (B) APPLYING ONE END OF SAID COMPOUND NUT MEMBER TO THE FIRST BOLT OF SAID TWO ASSEMBLIES SO AS TO CAUSE THREADED ENGAGEMENT BETWEEN A FIRST OF SAID TWO NUT BODIES AND THE THREAD OF SAID FIRST BOLT, (C) APPLYING TORQUE TO SAID WRENCHING SECTION TO CAUSE TIGHTENING OF SAID FIRST NUT BODY UPON SAID FIRST BOLT AND CONTINUING APPLICATION OF TORQUE TO CAUSE SHEARING OF THE NECK SECTION BETWEEN SAID FIRST NUT BODY AND SAID WRENCHING SECTION, (D) REMOVING SAID WRENCHING SECTION AND THE ATTACHED SECOND OF SAID TWO NUT BODIES FROM THE ASSEMBLY OF SAID FIRST BOLT AND NUT BODY, (E) APPLYING SAID SECTION NUT BODY TO THE SECOND BOLT OF SAID TWO ASSEMBLIES SO AS TO CAUSE THREADED ENGAGEMENT BETWEEN SAID SECOND NUT BODY AND THE THREAD OF SAID SECOND BOLT,
Claim 2
Dependent Claim
193 words
METHOD OF TIGHTENING NUTS IN EACH OF TWO NUT AND BOLT ASSEMBLIES COMPRISING: (A) PROVIDING A COMPOUND NUT MEMBER COMPRISING TWO INTERNALLY THREADED NUT BODIES DISPOSED IN AXIAL ALIGNMENT AND A WRENCHING SECTION LOCATED IN BETWEEN SAID NUT BODIES AND CONNECTED TO EACH NUT BODY BY A NECK SECTION ADAPTED TO SHEAR UPON APPLICATION OF A PREDETERMINED TORQUE THERETO, (B) APPLYING ONE END OF SAID COMPOUND NUT MEMBER TO THE FIRST BOLT OF SAID TWO ASSEMBLIES SO AS TO CAUSE THREADED ENGAGEMENT BETWEEN A FIRST OF SAID TWO NUT BODIES AND THE THREAD OF SAID FIRST BOLT, (C) APPLYING TORQUE TO SAID WRENCHING SECTION TO CAUSE TIGHTENING OF SAID FIRST NUT BODY UPON SAID FIRST BOLT AND CONTINUING APPLICATION OF TORQUE TO CAUSE SHEARING OF THE NECK SECTION BETWEEN SAID FIRST NUT BODY AND SAID WRENCHING SECTION, (D) REMOVING SAID WRENCHING SECTION AND THE ATTACHED SECOND OF SAID TWO NUT BODIES FROM THE ASSEMBLY OF SAID FIRST BOLT AND NUT BODY, (E) APPLYING SAID SECTION NUT BODY TO THE SECOND BOLT OF SAID TWO ASSEMBLIES SO AS TO CAUSE THREADED ENGAGEMENT BETWEEN SAID SECOND NUT BODY AND THE THREAD OF SAID SECOND BOLT,
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) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |