US3807774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locking device
Assignee: RTX Corp
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Filing: 1972-07-10
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Granted: 1974-04-30
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Expires: 1992-07-10
Abstract
Abstract This locking device provides means to prevent relative rotation between two co-axially threaded members by the use of a spring wire which is mounted for pivotal movement with respect to one member with means for contacting said other member for fixing the two members with respect to one another, and means for locking the spring wire in place.
Inventors
- 👤 J Heath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:38
CPC Classifications
F; F16; F16L; F16L15/00; F16L15/08; F16L19/00; F16L19/005
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
172 words
A device for locking a first member against rotation with respect to a second member, said second member having a projection thereon, said first member having a cylindrical outer section, said cylindrical section being mounted on said projection for rotation therewith, said cylindrical section having serrations on its outer surface, a locking member having an intermediate straight section on said second member, means pivotally mounting said intermediate straight section on said second member, a first arm extending from one end of the intermediate straight section of the locking member, said arm having an edge for engaging said serrations in its locked position for preventing movement between said first and second member, said locking member having a second arm means extending from the other end of said intermediate straight section for engaging a member fixed against radial movement with respect to said cylindrical section in its locked position for maintaining said edge in engagement with Said serrations, said second arm means providing a spring action to continually bias said edge against said serrations.
Claim 2
Independent Claim
172 words
A device for locking a first member against rotation with respect to a second member, said second member having a projection thereon, said first member having a cylindrical outer section, said cylindrical section being mounted on said projection for rotation therewith, said cylindrical section having serrations on its outer surface, a locking member having an intermediate straight section on said second member, means pivotally mounting said intermediate straight section on said second member, a first arm extending from one end of the intermediate straight section of the locking member, said arm having an edge for engaging said serrations in its locked position for preventing movement between said first and second member, said locking member having a second arm means extending from the other end of said intermediate straight section for engaging a member fixed against radial movement with respect to said cylindrical section in its locked position for maintaining said edge in engagement with Said serrations, said second arm means providing a spring action to continually bias said edge against said serrations.
Claim 3
Dependent Claim
41 words
A device as set forth in claim 1 wherein said mounting means includes a flange member extending outwardly from said second member adjacent said projection and the intermediate straight section of the locking member is pivotally mounted to the flange member.
Claim 4
Dependent Claim
32 words
A device as set forth in claim 1 wherein said projection is a tubular member having external threads thereon and said cylindrical outer section has internal threads for engaging said external threads.
Claim 5
Dependent Claim
35 words
A device as set forth in claim 1 wherein said locking member is a wire member, said mounting means for said intermediate straight section of said wire member including an opening through said second member.
Claim 6
Dependent Claim
167 words
In combination, a first tubular means, a second tubular means, said first tubular means having external threads adjacent one end thereof, said second tubular means having internal threads for engaging said external threads, said second tubular means having a cylindrical outer surface containing serrations thereon, a locking member having an intermediate straight section, means pivotally mounting said intermediate straight section on said first tubular means for locking said first tubular means to said second tubular means, said locking member having a first arm extending from one end of the intermediate straight section with an edge for engaging said serrations in a locking position for preventing movement between said first and second tubular means, said locking member having a second arm means extending from the other end of the intermediate straight section for engaging one of said tubular means in a locking position for maintaining said edge in engagement with said serrations, said second arm means providing a spring action to continually bias said edge against said serrations.
Claim 7
Dependent Claim
167 words
In combination, a first tubular means, a second tubular means, said first tubular means having external threads adjacent one end thereof, said second tubular means having internal threads for engaging said external threads, said second tubular means having a cylindrical outer surface containing serrations thereon, a locking member having an intermediate straight section, means pivotally mounting said intermediate straight section on said first tubular means for locking said first tubular means to said second tubular means, said locking member having a first arm extending from one end of the intermediate straight section with an edge for engaging said serrations in a locking position for preventing movement between said first and second tubular means, said locking member having a second arm means extending from the other end of the intermediate straight section for engaging one of said tubular means in a locking position for maintaining said edge in engagement with said serrations, said second arm means providing a spring action to continually bias said edge against said serrations.
Claim 8
Dependent Claim
36 words
A combination as set forth in claim 5 wherein said locking member is a wire member, said mounting means for said intermediate straight section of said wire member including an opening through said first tubular means.
Claim 9
Dependent Claim
27 words
A combination as set forth in claim 5 wherein the free end of said second arm means has a curved section for encircling the second tubular means.
Claim 10
Dependent Claim
31 words
A combination as set forth in claim 5 wherein said second arm means engages said first tubular means in a locking position for maintaining said edge in engagement with said serrations.
Claim 11
Dependent Claim
37 words
A device as set forth in claim 1 wherein said second arm means also provides a spring action to continually bias said second arm against a member fixed against radial movement with respect to said cylindrical section.
Claim 12
Dependent Claim
31 words
A combination as set forth in claim 5 wherein said second arm means also provides a spring action to continually bias said second arm against said one of said tubular means.
Claim 13
Dependent Claim
28 words
A combination as set forth in claim 5 wherein the axis of rotation of said intermediate straight section is located toward one side of the first tubular means.
Claim 14
Dependent Claim
37 words
A combination as set forth in claim 11 wherein said second arm means has a curved section, said curved section encircling said second tubular means on a side away from the pivotal mounting of the locking member.
Claim 15
Dependent Claim
56 words
A combination as set forth in claim 3 wherein said first arm extends at an angle from said intermediate straight section towards said serrations so that the threads on the tubular member and cylindrical outer section can be tightened by a large force while movement in a loosening direction is prevented using the same size force.
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) | 1977-04-29 | 1977-10-29 | 1978-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-29 | 1981-10-29 | 1982-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-29 | 1985-10-29 | 1986-04-30 | $7700.00 | Window Closed / Lapsed |