Patent US4094224A successfully refreshed from Google Patents.
US4094224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thread protector and seal
Assignee: United States Department of the Army
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Filing: 1977-07-20
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Granted: 1978-06-13
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Expires: 1997-07-20
Abstract
Abstract A thread protector and seal device, suitable for use with automated shell lling equipment utilizes a flanged semi-rigid tubular member having a plurality of longitudinally disposed slots on one end thereof to facilitate insertion into the nose end of an internally threaded projectile. A compliant member is molded into interior and exterior annular grooves of the insertion end of the thread protector to prevent the accumulation of explosive material from entering the threaded fuze area of the projectile during a loading operation.
Inventors
- 👤 Joseph C. Homko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:49
CPC Classifications
F; F42; F42B; F42B33/00; F42B33/02; F42B33/0214; F42B33/0228
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
135 words
A thread protector and seal device for use in automated nose end funnel loading of a projectile with explosive materials, which comprises: a tubularly shaped body member having a plurality of parallel longitudinally disposed flexing slots extending through the bottom end of said body member, annular seal grooves disposed in an interior and an exterior wall of said body member, a plurality of transversely disposed seal through holes positioned in the bottom end of said body member, and an integrally disposed flange located on an upper end of said body member; and molded compliant means located in said interior and exterior seal grooves for preventing injury to internal threads in the nose end of said projectile during funnel loading and for preventing explosive materials from flowing upward into said internal thread area of said projectile.
Claim 2
Dependent Claim
135 words
A thread protector and seal device for use in automated nose end funnel loading of a projectile with explosive materials, which comprises: a tubularly shaped body member having a plurality of parallel longitudinally disposed flexing slots extending through the bottom end of said body member, annular seal grooves disposed in an interior and an exterior wall of said body member, a plurality of transversely disposed seal through holes positioned in the bottom end of said body member, and an integrally disposed flange located on an upper end of said body member; and molded compliant means located in said interior and exterior seal grooves for preventing injury to internal threads in the nose end of said projectile during funnel loading and for preventing explosive materials from flowing upward into said internal thread area of said projectile.
Claim 3
Dependent Claim
46 words
A thread protector and seal device as recited in claim 1 wherein said compliant means comprises a seal band fixedly molded to said interior and exterior annular grooves of said body member and being partially disposed in said flexing slots and filling said seal through holes.
Claim 4
Dependent Claim
24 words
A seal thread protector and seal device as recited in claim 2 wherein said tubularly shaped body member is made of a ferrous material.
Claim 5
Dependent Claim
23 words
A seal thread protector and seal device as recited in claim 3 wherein said tubularly shaped body member is made of nonferrous material.
Claim 6
Dependent Claim
23 words
A seal thread protector and seal device as recited in claim 4 wherein said tubularly shaped body member is made of plastic material.
Claim 7
Dependent Claim
21 words
A seal thread protector and seal device as recited in claim 2 wherein said seal is made of molded polyurethane material.
Claim 8
Dependent Claim
23 words
A seal thread protector and seal device as recited in claim 6 wherein said seal band is made of molded neoprene rubber material.
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) | 1981-06-12 | 1981-12-12 | 1982-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-12 | 1985-12-12 | 1986-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-12 | 1989-12-12 | 1990-06-13 | $7700.00 | Window Closed / Lapsed |