Patent JPS5631393A successfully refreshed from Google Patents.
Patent US3975494A successfully refreshed from Google Patents.
US3975494A
Expired / Lapsed
US
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Method of making synthetic-resin target pigeon
Assignee: Individual
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Filing: 1974-12-02
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Granted: 1976-08-17
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Expires: 1994-12-02
Abstract
Abstract A target pigeon is made of synthetic resins such as polystyrene and polymethacrylate which are not mutually soluble. The resins are heated and cooled successively prior to injection molding of the pigeon so that they coagulate together and form a mass of tiny flakes constituting the body of the pigeon. These resins are injected into the mold cavity at a plurality of locations so that the pigeon has interfaces constituting weak lines that allow it readily to disintegrate when struck transversely, but which do not decrease the longitudinal strength so the pigeon can be launched by means of an explosion from a blank cartridge or the like.
Inventors
- 👤 Claude Tritenne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:26
CPC Classifications
F; F41; F41J; F41J1/00; F41J1/01; B; B29; B29C; B29C45/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
89 words
A method of making a target pigeon comprising the steps of: a. blending two synthetic resins which are not mutually soluble; b. after step (a) sinusoidally heating the blend of synthetic resins to alternately raise and lower the temperature thereof as a function of time to form an aggregate therefrom; and thereafter c. injecting said aggregate simultaneously through a plurality of filling passages into a mold under pressure to form a pigeon with a multiplicity of interfaces wherein said pigeons possess great longitudinal strength relative to their lateral strength.
Claim 2
Independent Claim
89 words
A method of making a target pigeon comprising the steps of: a. blending two synthetic resins which are not mutually soluble; b. after step (a) sinusoidally heating the blend of synthetic resins to alternately raise and lower the temperature thereof as a function of time to form an aggregate therefrom; and thereafter c. injecting said aggregate simultaneously through a plurality of filling passages into a mold under pressure to form a pigeon with a multiplicity of interfaces wherein said pigeons possess great longitudinal strength relative to their lateral strength.
Claim 3
Dependent Claim
23 words
The method defined in claim 1 wherein said resins are blended such that each resin is reduced to a multiplicity of microscopic flakes.
Claim 4
Dependent Claim
14 words
The method defined in claim 1 wherein said resins are molded by injection molding.
Claim 5
Dependent Claim
16 words
The method defined in claim 3 wherein said injection molding takes less time than 3 seconds.
Claim 6
Dependent Claim
19 words
The method defined in claim 3, further comprising the step of demolding said pigeon while same is still malleable.
Claim 7
Dependent Claim
21 words
The method defined in claim 1 wherein said resins are polystyrene and plymethacrylate mixed in proportions of between 2.5:1 and 1.5:1.
References Cited (Backward Citations)
US2353457A
Cited
US2372630A
Cited
US3437722A
Cited
US3554552A
Cited
US3646187A
Cited
US3732345A
Cited
US3675926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-17 | 1980-02-16 | 1980-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-17 | 1984-02-16 | 1984-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-17 | 1988-02-16 | 1988-08-17 | $7700.00 | Window Closed / Lapsed |