Patent US3589632A successfully refreshed from Google Patents.
US3589632A
Expired / Lapsed
US
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Self-forming-boom storing and deploying apparatus
Assignee: Westinghouse Electric Corp
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Filing: 1969-04-30
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Granted: 1971-06-29
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Expires: 1989-04-30
Abstract
Abstract Improved apparatus which stores and deploys rolled-up thin, springlike, strip material that self-unwinds and curls outwardly at its edges into a hollow tubular boom when freed of its wound state. Self-adjusting means radially constraining the edges of the outermost winding of the rolled-up strip maintains same compactly wound on the storage reel during self-unwinding, and one-way ball-type centrifugal brake means on the reel stabilizes the strip-unwinding rate while permitting unrestrained reel rotation in the winding direction.
Inventors
- 👤 James A Rew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:50
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/1235; B; B21; B21C; B21C47/00; B21C47/003; B21C47/16; B21C47/18; B21C47/28; B65; B65H; B65H75/00; B65H75/02; B65H75/34; E; E04; E04C; E04C3/00; E04C3/005; F; F16; F16H; F16H19/00; F16H19/02; F16H19/06; F16H19/064; B65H2701/00; B65H2701/30; B65H2701/33; B65H2701/332; Y; Y10; Y10S; Y10S436/00; Y10S436/805
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
187 words
Extensible boom apparatus, comprising, a support frame, a storage reel having a central hub rotatably mounted in said support frame, strip guide means mounted on said frame a distance away from said reel, an elongated spring strip of thin springlike material attached at one end to said hub and wound compactly therearound in a widthwise flattened state and having its opposite end extending tangentially from its reel-wound turns through said guide means, said strip being inherently biased to unwind and project itself through said guide means while curling itself outwardly at its edges to form itself into a hollow cylindrical configuration, self-adjusting coil keeper means on said storage reel at opposite ends of said hub exerting a resilient radially inward constraint at the edges of the outermost turn of the spring strip to maintain such strip compactly wound on the reel hub during payout unwinding of the strip from the reel and consequent reduction in diameter of such outer turn, and a centrifugal friction brake means interposed between said frame and reel to limit the rate at which strip payment is permitted by freedom of reel rotation.
Claim 2
Dependent Claim
187 words
Extensible boom apparatus, comprising, a support frame, a storage reel having a central hub rotatably mounted in said support frame, strip guide means mounted on said frame a distance away from said reel, an elongated spring strip of thin springlike material attached at one end to said hub and wound compactly therearound in a widthwise flattened state and having its opposite end extending tangentially from its reel-wound turns through said guide means, said strip being inherently biased to unwind and project itself through said guide means while curling itself outwardly at its edges to form itself into a hollow cylindrical configuration, self-adjusting coil keeper means on said storage reel at opposite ends of said hub exerting a resilient radially inward constraint at the edges of the outermost turn of the spring strip to maintain such strip compactly wound on the reel hub during payout unwinding of the strip from the reel and consequent reduction in diameter of such outer turn, and a centrifugal friction brake means interposed between said frame and reel to limit the rate at which strip payment is permitted by freedom of reel rotation.
Claim 3
Dependent Claim
190 words
Extensible boom apparatus, comprising, a support frame, a storage reel having a central hub rotatably mounted in said support frame, strip guide means mounted on said frame a distance away from said reel, an elongated spring strip of thin springlike material attached at one end to said hub and wound compactly therearound in a widthwise flattened state and having its opposite end extending tangentially from its reel-wound turns through said guide means, said strip being inherently biased to unwind and project itself through said guide means while curling itself outwardly at its edges to form itself into a hollow cylindrical configuration, and self-adjusting coil keeper means on said storage reel at opposite ends of said hub exerting a resilient radially inward constraint at the edges of the outermost turn on the spring strip to maintain such strip compactly wound on the reel hub during payout unwinding of the strip from the reel and consequent reduction in diameter of such outer turn, said turns keeper means comprising rigid inwardly facing conical members at opposite ends of the hub, and helical compression spring means biasing the two conical members toward one another.
Claim 4
Dependent Claim
190 words
Extensible boom apparatus, comprising, a support frame, a storage reel having a central hub rotatably mounted in said support frame, strip guide means mounted on said frame a distance away from said reel, an elongated spring strip of thin springlike material attached at one end to said hub and wound compactly therearound in a widthwise flattened state and having its opposite end extending tangentially from its reel-wound turns through said guide means, said strip being inherently biased to unwind and project itself through said guide means while curling itself outwardly at its edges to form itself into a hollow cylindrical configuration, and self-adjusting coil keeper means on said storage reel at opposite ends of said hub exerting a resilient radially inward constraint at the edges of the outermost turn on the spring strip to maintain such strip compactly wound on the reel hub during payout unwinding of the strip from the reel and consequent reduction in diameter of such outer turn, said turns keeper means comprising rigid inwardly facing conical members at opposite ends of the hub, and helical compression spring means biasing the two conical members toward one another.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |