US3779227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring type projecting device
Assignee: Individual
•
Filing: 1971-12-22
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Granted: 1973-12-18
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Expires: 1991-12-22
Abstract
Abstract Apparatus is disclosed for propelling game balls or like objects sequentially in a desired trajectory. A rotating elongated leaf spring, being bent over its entire length by the combined action of a trip lever and a fulcrum, is used to propel the objects. The trip lever, when engaged by the elongated leaf spring, pivots to separate the object to be propelled from the flow of objects from a magazine and to retain the elongated leaf spring in a stressed and cocked condition. The apparatus prevents overloading of the leaf spring and also prevents extended vibration of the leaf spring by the use of leaf springs and snubbing spring.
Inventors
- 👤 W Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:16
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/40; A63B69/407; A63B69/408
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
136 words
Apparatus for propelling game balls sequentially in a desired trajectory, said apparatus comprising: a feed mechanism for supplying game balls; an elongated leaf spring for propelling game balls supplied by the feed mechanism; a retarding spring positioned adjacent the elongated leaf spring, driving means for rotating the elongated leaf spring; and lever means for causing the elongated leaf spring to bend during rotation thereof to momentarily retain the elongated leaf spring immediately beHind a game ball, to be projected and to interrupt the flow of balls from the ball feed mechanism, said elongated leaf spring being a cantilevered beam which is bent by the lever means over its entire length around a fulcrum and wherein said retarding spring is so positioned relative to said beam as to be compressed during the deflection of the cantilevered beam.
Claim 2
Dependent Claim
136 words
Apparatus for propelling game balls sequentially in a desired trajectory, said apparatus comprising: a feed mechanism for supplying game balls; an elongated leaf spring for propelling game balls supplied by the feed mechanism; a retarding spring positioned adjacent the elongated leaf spring, driving means for rotating the elongated leaf spring; and lever means for causing the elongated leaf spring to bend during rotation thereof to momentarily retain the elongated leaf spring immediately beHind a game ball, to be projected and to interrupt the flow of balls from the ball feed mechanism, said elongated leaf spring being a cantilevered beam which is bent by the lever means over its entire length around a fulcrum and wherein said retarding spring is so positioned relative to said beam as to be compressed during the deflection of the cantilevered beam.
Claim 3
Dependent Claim
27 words
Apparatus of claim 1 in which the retarding spring functions to eliminate vibration of the elongated leaf spring upon its release from contact with the lever means.
Claim 4
Dependent Claim
32 words
Apparatus of claim 1 which further comprises storage means for storing game balls and said storage means being so positioned as to cause game balls to sequentially pass into the feed mechanism.
Claim 5
Dependent Claim
32 words
Apparatus of claim 3 wherein the storage means is a canister type device which is constructed at one end to have a compression fit with game balls contained by said storage means.
Claim 6
Dependent Claim
18 words
Apparatus of claim 1 wherein the feed mechanism contains means for permitting reception of different size game balls.
Claim 7
Dependent Claim
134 words
Apparatus for propelling game balls sequentially in a desired trajectory, said apparatus comprising: a feed mechanism for supplying game balls; an elongated leaf spring for propelling game balls supplied by the feed mechanism; driving means for rotating the elongated leaf spring, said driving means being connected indirectly to the elongated leaf spring at a position offset from the axis of the driving means; lever means for causing the elongated leaf spring to bend during rotation thereof to momentarily retain the elongated leaf spring immediately behind a game ball to be projected and to interrupt the flow of balls from the ball feed mechanism, and a retarding spring which is so positioned relative to said beam as to be compressed during bending of the elongated leaf spring for eliminating vibration of the elongated leaf spring.
Claim 8
Dependent Claim
134 words
Apparatus for propelling game balls sequentially in a desired trajectory, said apparatus comprising: a feed mechanism for supplying game balls; an elongated leaf spring for propelling game balls supplied by the feed mechanism; driving means for rotating the elongated leaf spring, said driving means being connected indirectly to the elongated leaf spring at a position offset from the axis of the driving means; lever means for causing the elongated leaf spring to bend during rotation thereof to momentarily retain the elongated leaf spring immediately behind a game ball to be projected and to interrupt the flow of balls from the ball feed mechanism, and a retarding spring which is so positioned relative to said beam as to be compressed during bending of the elongated leaf spring for eliminating vibration of the elongated leaf spring.
Claim 9
Dependent Claim
22 words
Apparatus of claim 6 in which the lever means is adjustable to vary the amount of bending of the elongated leaf spring.
References Cited (Backward Citations)
US1834395A
Cited
US2652822A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |