Patent US3568603A successfully refreshed from Google Patents.
US3568603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air rifle shot shell
Assignee: Olin Corp
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Filing: 1969-05-07
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Granted: 1971-03-09
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Expires: 1989-05-07
Abstract
Abstract A caseless plastic shot shell having a shot-receiving pocket formed on the forward end thereof, the sidewall of the pocket being interrupted by spaced apart slits defining laterally deflectable petals. A collar is slidably mounted on the shell and operative in a first position to prevent the petals from deflecting laterally. The collar can be moved to a second position wherein the petals are free to deflect. A gas obturating cup is disposed on the rearward end of the shell.
Inventors
- 👤 Edwin S Vartanian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:31
CPC Classifications
F; F42; F42B; F42B7/00; F42B7/02; F42B7/06
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
134 words
A caseless shotshell for use with a gas operated weapon, said shell comprising: a cylindrical plastic body having a forwardly disposed shot-receiving pocket; a transversely extending web closing the rearward end of said shot-receiving pocket; the sidewall of said shot-receiving pocket being interrupted by a plurality of longitudinally extending slits defining a number of adjacent resilient petals operative to deflect outwardly when said shell is fired from the weapon; collar means slidably mounted on the exterior of said body, said collar means being movable to a first position overlying said petals to prevent the latter from outward deflection, and said collar means further being movable to a second position offset from said petals wherein the latter are free to deflect outwardly; and deflectable means operative to close the forward end of said shot-receiving pocket.
Claim 2
Dependent Claim
134 words
A caseless shotshell for use with a gas operated weapon, said shell comprising: a cylindrical plastic body having a forwardly disposed shot-receiving pocket; a transversely extending web closing the rearward end of said shot-receiving pocket; the sidewall of said shot-receiving pocket being interrupted by a plurality of longitudinally extending slits defining a number of adjacent resilient petals operative to deflect outwardly when said shell is fired from the weapon; collar means slidably mounted on the exterior of said body, said collar means being movable to a first position overlying said petals to prevent the latter from outward deflection, and said collar means further being movable to a second position offset from said petals wherein the latter are free to deflect outwardly; and deflectable means operative to close the forward end of said shot-receiving pocket.
Claim 3
Dependent Claim
37 words
The shotshell of claim 1, wherein said cylindrical plastic body further includes a rearwardly opening concavity including a resilient sidewall operative to flare outwardly to form a gas-obturating seal when said shell is fired from the weapon.
Claim 4
Dependent Claim
33 words
The shotshell of claim 2, wherein said sidewall is further operative to frictionally engage a bolt means on the weapon therein providing for extraction of said shell should the latter not be fired.
Claim 5
Dependent Claim
33 words
THe shotshell of claim 2, further comprising rearwardly extending elongate means formed in said concavity to provide a manually graspable surface to facilitate extraction of said shell should the latter not be fired.
Claim 6
Dependent Claim
19 words
The shotshell of claim 4, further comprising a radial protuberance formed on the rearward terminal of said elongate means.
Claim 7
Dependent Claim
52 words
The shotshell of claim 1, further comprising spaced apart shoulder means formed on said cylindrical body to prevent said collar means from accidentally slipping off of said body; one of said shoulder means combining with said collar means to provide a shot start surface when said shell is chambered in the weapon.
Claim 8
Dependent Claim
36 words
The shotshell of claim 1, wherein said deflectable closure means comprises a plurality of inwardly extending flaps integral with said petals, each of said flaps being deflected radially outwardly when its associated petal is deflected outwardly.
Claim 9
Dependent Claim
26 words
The shotshell of claim 7, wherein said flaps include depressions formed on their forward surfaces defining air scoops operative to initiate radial deflection of said flaps.
Claim 10
Dependent Claim
34 words
The shotshell of claim 1 wherein said collar means comprises a plurality of protrusions operative to engage said weapon to slide said collar means over said body when said shell is chambered and unchambered.
Claim 11
Dependent Claim
109 words
A caseless reloadable shotshell comprising: a cylindrical plastic body having a forwardly disposed shot-receiving pocket; a plurality of adjacent resilient petals defining the sidewall of said shot-receiving pocket, said petals being outwardly deflectable; collar means slidably mounted on the exterior of said body, said collar means being movable to a first position overlying said petals to restrain the latter against outward deflection, and said collar means further being movable to a second position offset from said petals wherein the latter are free to deflect outwardly; means operative to close the rearward end of said shot-receiving pocket; and deflectable means operative to close the forward end of said shot-receiving pocket.
Claim 12
Dependent Claim
109 words
A caseless reloadable shotshell comprising: a cylindrical plastic body having a forwardly disposed shot-receiving pocket; a plurality of adjacent resilient petals defining the sidewall of said shot-receiving pocket, said petals being outwardly deflectable; collar means slidably mounted on the exterior of said body, said collar means being movable to a first position overlying said petals to restrain the latter against outward deflection, and said collar means further being movable to a second position offset from said petals wherein the latter are free to deflect outwardly; means operative to close the rearward end of said shot-receiving pocket; and deflectable means operative to close the forward end of said shot-receiving pocket.
Claim 13
Dependent Claim
32 words
The shotshell of claim 10, further comprising a rearwardly opening concavity having a resilient sidewall operative to flare outwardly to form a gas-obturating seal when said shell is fired from a weapon.
Claim 14
Dependent Claim
44 words
The shotshell of claim 11, further comprising rearwardly extending elongate means formed integrally with a wall of said concavity and having a rearward terminal protuberance, said elongate means providing a graspable surface to facilitate extraction of said shell should the latter not be fired.
Claim 15
Dependent Claim
28 words
The shotshell of claim 10, further comprising spaced apart shoulder means formed on said cylindrical body to prevent said collar means from accidentally slipping off of said body.
Claim 16
Dependent Claim
49 words
The shotshell of claim 10, wherein said deflectable closure means comprises a plurality of adjacent transversely extending flaps, there being one flap integrally formed on each of said petals, said flaps having depressions formed on their forward surfaces defining air scoops operative to initiate radial deflection of said flaps.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |