Patent US3094192A successfully refreshed from Google Patents.
Patent US3563131A successfully refreshed from Google Patents.
US3563131A
Expired / Lapsed
US
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Spacer
Assignee: Lockheed Martin Corp
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Filing: 1969-04-23
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Granted: 1971-02-16
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Expires: 1989-04-23
Abstract
Abstract A spacer is provided for use in securing wire clamps in individual, stacked pairs so that only one pair of such clamps need be disconnected at a time. Opposite ends of the spacer terminate in bearing surfaces of precise dimension to assure the support of a cantilevered load. A threaded stud extends from one of these spacer ends and a threaded bore is formed in the other spacer end with matching threads so that the stud of one spacer can coact with the bore of another to accomplish stacking. The wall of the spacer between the bearing surfaces is configured to an optimum strength to weight ratio and a torque applying surface is associated with the bore end of the spacer.
Inventors
- 👤 Robert L Ridley Sr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:55
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/14; F16B37/145; F16B35/00; F16B35/04; H; H02; H02G; H02G3/00; H02G3/30; H02G3/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A spacer comprising a tubular shank open at one end and having internal threads and closed at the other end and having a stud with corresponding external threads extending therefrom, a right angularly disposed bearing surface at each end of said shank defined by a peripheral surface, the portion of said shank intermediate said peripheral surfaces being reduced so as to have a substantially uniform wall thickness at each point in the length of said portion establishing a cross sectional wall area substantially equal to that of said stud, the length of said reduced shank portion constituting the majority of said shank length and the length of said shank being at least one and onehalf times that of said externally threaded stud, and each said bearing surface having an overall dimension on the order of onethird the length of said shank.
Claim 2
Dependent Claim
141 words
A spacer comprising a tubular shank open at one end and having internal threads and closed at the other end and having a stud with corresponding external threads extending therefrom, a right angularly disposed bearing surface at each end of said shank defined by a peripheral surface, the portion of said shank intermediate said peripheral surfaces being reduced so as to have a substantially uniform wall thickness at each point in the length of said portion establishing a cross sectional wall area substantially equal to that of said stud, the length of said reduced shank portion constituting the majority of said shank length and the length of said shank being at least one and onehalf times that of said externally threaded stud, and each said bearing surface having an overall dimension on the order of onethird the length of said shank.
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |