Patent US1559856A successfully refreshed from Google Patents.
Patent US3304562A successfully refreshed from Google Patents.
US3304562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of assembling threaded fastener and lock washer units
Assignee: Individual
•
Filing: 1966-03-02
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Granted: 1967-02-21
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Expires: 1986-03-02
Abstract
No abstract record available.
Inventors
- 👤 Schmidt Rudolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:17
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/24; F16B39/26; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49917; Y10T29/49918; Y10T29/49925; Y10T29/49934
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
THE METHOD OF ASSEMBLING A LOCK WASHER AND THREADED FASTENER INTO A UNIT WHEREIN THE LOCK WASHER IS MAINTAINED IN ASSEMBLED RELATIONSHIP WITH THE FASTENER WITH THE LOCK WASHER POSITIVELY RETAINED AGAINST DISASSEMBLY FROM THE FASTENER AND READILY ROTATABLE RELATIVE THERETO, THE FASTENER BEING PROVIDED WITH A BODY HAVING A SCREW-THREADED PORTION AND A CLAMPING SURFACE AND THE LOCK WASHER BEING PROVIDED WITH A UNITARY BODY HAVING A GENERALLY ANNULAR CONFIGURATION WITH LOCKING MEANS PROJECTING RADIALLY THEREFROM, THE METHOD INCLUDING: PROVIDING AT LEAST A PORTION OF THE LOCK WASHER BODY WITH A FRUSTO-CONICAL CONFIGURATION HAVING AN APICAL ANGLE; PROVIDING A FURTHER PORTION OF THE LOCK WASHER BODY WITH FLANGE MEANS DISPLACED AXIALLY FROM AND PROJECTING RADIALLY OVER AT LEAST A PORTION OF THE FRUSTOCONICAL BODY PORTION; AND PRESSING THE FRUSTO-CONICAL BODY PORTION OF THE LOCK WASHER AXIALLY AGAINST THE CLAMPING SURFACE OF THE FASTENER BODY WITH SUFFICIENT FORCE SO THAT A PORTION OF THE BODY OF THE FASTENER IS PERMANENTLY DEFORMED BY THE APICAL ANGLE AXIALLY IN THE DIRECTION OF THE PRESSING FORCE AND RADIALLY INTO A CONTINUOUS ANNULAR LIP PROJECTING BETWEEN THE FRUSTO-CONICAL BODY PORTION AND THE FLANGE MEANS OF THE LOCK WASHER BODY TO RETAIN THE LOCK WASHER IN SAID ASSEMBLED RELATIONSHIP WITH THE FASTENER.
Claim 2
Independent Claim
207 words
THE METHOD OF ASSEMBLING A LOCK WASHER AND THREADED FASTENER INTO A UNIT WHEREIN THE LOCK WASHER IS MAINTAINED IN ASSEMBLED RELATIONSHIP WITH THE FASTENER WITH THE LOCK WASHER POSITIVELY RETAINED AGAINST DISASSEMBLY FROM THE FASTENER AND READILY ROTATABLE RELATIVE THERETO, THE FASTENER BEING PROVIDED WITH A BODY HAVING A SCREW-THREADED PORTION AND A CLAMPING SURFACE AND THE LOCK WASHER BEING PROVIDED WITH A UNITARY BODY HAVING A GENERALLY ANNULAR CONFIGURATION WITH LOCKING MEANS PROJECTING RADIALLY THEREFROM, THE METHOD INCLUDING: PROVIDING AT LEAST A PORTION OF THE LOCK WASHER BODY WITH A FRUSTO-CONICAL CONFIGURATION HAVING AN APICAL ANGLE; PROVIDING A FURTHER PORTION OF THE LOCK WASHER BODY WITH FLANGE MEANS DISPLACED AXIALLY FROM AND PROJECTING RADIALLY OVER AT LEAST A PORTION OF THE FRUSTOCONICAL BODY PORTION; AND PRESSING THE FRUSTO-CONICAL BODY PORTION OF THE LOCK WASHER AXIALLY AGAINST THE CLAMPING SURFACE OF THE FASTENER BODY WITH SUFFICIENT FORCE SO THAT A PORTION OF THE BODY OF THE FASTENER IS PERMANENTLY DEFORMED BY THE APICAL ANGLE AXIALLY IN THE DIRECTION OF THE PRESSING FORCE AND RADIALLY INTO A CONTINUOUS ANNULAR LIP PROJECTING BETWEEN THE FRUSTO-CONICAL BODY PORTION AND THE FLANGE MEANS OF THE LOCK WASHER BODY TO RETAIN THE LOCK WASHER IN SAID ASSEMBLED RELATIONSHIP WITH THE FASTENER.
References Cited (Backward Citations)
US2225654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |