US4357855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation resistant projectile canister liner
Assignee: United States Department of the Navy
•
Filing: 1980-12-01
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Granted: 1982-11-09
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Expires: 2000-12-01
Abstract
Abstract A liner for lining the interior surface of a canister which carries and sorts the launching of a projectile includes a first resilient layer, a second thermally reflective layer, and a third layer having a low coefficient of friction. The first layer contacts the inner surface of the canister, the second layer is interposed between the first and third layer, and the third layer contacts the outer surface of the projectile.
Inventors
- 👤 Paul L. Merz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:53
CPC Classifications
F; F41; F41F; F41F3/00; F41F3/04; F41F3/042; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31707
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
115 words
A radiation resistant liner for a projectile canister, comprising: a first layer of resilient material formed into a sheet having a grooved surface on one side and a smooth surface on the other side, the lands of the grooved surface bonded to the inner surface of the canister; a second layer of thermally reflective material formed into a sheet covering and bonded to the smooth surface of the first layer; and a third layer of material having low coefficients of friction and low coefficients of thermal and chemical activity formed into a sheet covering and bonded to the second layer, the third layer material being essentially transparent to the radiation reflected by the second layer.
Claim 2
Dependent Claim
115 words
A radiation resistant liner for a projectile canister, comprising: a first layer of resilient material formed into a sheet having a grooved surface on one side and a smooth surface on the other side, the lands of the grooved surface bonded to the inner surface of the canister; a second layer of thermally reflective material formed into a sheet covering and bonded to the smooth surface of the first layer; and a third layer of material having low coefficients of friction and low coefficients of thermal and chemical activity formed into a sheet covering and bonded to the second layer, the third layer material being essentially transparent to the radiation reflected by the second layer.
Claim 3
Dependent Claim
12 words
A liner as in claim 1 wherein the resilient material comprises rubber.
Claim 4
Dependent Claim
21 words
A liner as in claim 1 wherein the reflective material comprises a metal selected from the group containing aluminum and nickel.
Claim 5
Dependent Claim
23 words
A liner as in claim 1 wherein the third layer material is selected from the class of materials containing fluorocarbon resin and polytetrafluoroethylene.
Claim 6
Dependent Claim
12 words
A liner as in claim 4 wherein the resilient material comprises rubber.
Claim 7
Dependent Claim
21 words
A liner as in claim 5 wherein the reflective material comprises a metal selected from the group containing aluminum and nickel.
References Cited (Backward Citations)
US3124040A
Cited
FR1183117A
Cited
US3243313A
Cited
US3182469A
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US3166978A
Cited
US3285799A
Cited
US3635787A
Cited
US3610096A
Cited
US3895982A
Cited
US3857321A
Cited
US4068034A
Cited
US4238137A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-11-08 | 1986-05-10 | 1986-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-11-08 | 1990-05-10 | 1990-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-11-08 | 1994-05-10 | 1994-11-09 | $7700.00 | Window Closed / Lapsed |