US3751083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tension turnbuckle
Assignee: Lockheed Martin Corp
•
Filing: 1972-02-25
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Granted: 1973-08-07
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Expires: 1992-02-25
Abstract
Abstract A tension turnbuckle comprises first and second bolts having connectors integral therewith, a preloaded spring arranged about the inner end of said second bolt, a turnbuckle housing threaded onto said first bolt for movement thereon and fixed to the outer end of said preloaded spring, an indicator fixed to the inner end of said second bolt and cooperating with a viewing slot within the turnbuckle housing to permit ascertation of the tension of the turnbuckle, and a housing cap arranged to be screwed onto the turnbuckle housing after the proper tension is achieved to lock out the spring and provide a solid metal load path through the turnbuckle from the first bolt to the second bolt.
Inventors
- 👤 S Jacobson
- 👤 D Gorsuch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:08
CPC Classifications
F; F16; F16B; F16B7/00; F16B7/06; F16G; F16G11/00; F16G11/12; Y; Y10; Y10T; Y10T403/00; Y10T403/29; Y10T403/295
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
76 words
A tension turnbuckle, comprising: first and second connection means; a preloaded spring arranged about said second connection means; and coupled to one end thereof; means for coupling said first and second connection means through said preloaded spring; and adjustable means for providing a solid coupling between said first and second connection means and capable of locking out said preloaded spring from the load path while simultaneously maintaining it under any one of various degrees of preload.
Claim 2
Dependent Claim
76 words
A tension turnbuckle, comprising: first and second connection means; a preloaded spring arranged about said second connection means; and coupled to one end thereof; means for coupling said first and second connection means through said preloaded spring; and adjustable means for providing a solid coupling between said first and second connection means and capable of locking out said preloaded spring from the load path while simultaneously maintaining it under any one of various degrees of preload.
Claim 3
Dependent Claim
33 words
A tension turnbuckle as defined in claim 1, wherein said first and second connection means comprise first and second bolts with said preloaded spring arranged about the inner end of said second bolt.
Claim 4
Dependent Claim
53 words
A tension turnbuckle as defined in claim 2, further including first and second nuts threaded onto said second bolt, one nut arranged at either end of said spring and a locking nut arranged intermediate said second nut and said spring, said locking nut being externally threaded and not connected to said second bolt.
Claim 5
Dependent Claim
33 words
A tension turnbuckle as defined in claim 3, further including first and second thrust bearings, said first and second thrust bearings arranged intermediate said spring and said first nut and locking nut, respectively.
Claim 6
Dependent Claim
43 words
A tension turnbuckle as defined in claim 3, wherein said means for coupling said first and second bolts through said spring includes a housing coupled to said first bolt and to said locking nut, said housing being externally threaded at one end thereof.
Claim 7
Dependent Claim
35 words
A tension turnbuckle as defined in claim 5, wherein said solid coupling means includes a housing cap threaded onto said housing and a nut intermediate the end of said second bolt and said housing cap.
Claim 8
Dependent Claim
33 words
A tension turnbuckle as defined in claim 5, further including indicating means arranged on said first nut, said housing having at least one hole therein to view the position of said indicating means.
Claim 9
Dependent Claim
24 words
A tension turnbuckle as defined in claim 7, wherein said housing has a number of holes therein corresponding to a plurality of predetermined tensions.
Claim 10
Dependent Claim
19 words
A tension turnbuckle as defined in claim 7, wherein said hole is elongated and has graduation markings associated therewith.
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) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |