Patent US1394103A successfully refreshed from Google Patents.
Patent US3793767A successfully refreshed from Google Patents.
US3793767A
Expired / Lapsed
US
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Crank operated reedless turkey call
Assignee: Individual
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Filing: 1972-10-25
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Granted: 1974-02-26
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Expires: 1992-10-25
Abstract
Abstract A crank operated reedless turkey call has a vibratable sounding board as one wall of a box with an extending edge accessible to rub against the lower surface of a spring biased lid pivoted at one corner of the box and moved by a crank over a predetermined degree of rubbing motion. The sound is produced over half of the crank cycle during the frictional contact between the edge and the lid when the lid is moved in the one direction toward the inside of the box and no sound is produced as it is returned in the opposite direction.
Inventors
- 👤 J Pulley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:59
CPC Classifications
A; A01; A01M; A01M31/00; A01M31/004
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
129 words
A reedless sound producing device such as a turkey call comprising in combination a first member disposed as a wall member of a box-like structure comprising a vibratable sounding board having an accessible edge extending beyond the remaining box-walls, a movable member disposed substantially as a box lid pivoted to move across said accessible edge with a frictional surface adapted to rub on said edge when the member is pivoted to cause vibrations of said sounding board, suspension means for holding said surface in frictional contact with said edge over a predetermined degree of movement, and a mechanism arranged to pass said movable member through said predetermined degree of movement with said surface rubbing over said accessible edge to thereby produce a predetermined sound such as a turkey call.
Claim 2
Dependent Claim
129 words
A reedless sound producing device such as a turkey call comprising in combination a first member disposed as a wall member of a box-like structure comprising a vibratable sounding board having an accessible edge extending beyond the remaining box-walls, a movable member disposed substantially as a box lid pivoted to move across said accessible edge with a frictional surface adapted to rub on said edge when the member is pivoted to cause vibrations of said sounding board, suspension means for holding said surface in frictional contact with said edge over a predetermined degree of movement, and a mechanism arranged to pass said movable member through said predetermined degree of movement with said surface rubbing over said accessible edge to thereby produce a predetermined sound such as a turkey call.
Claim 3
Dependent Claim
23 words
A device as defined in claim 1, wherein said mechanism is a crank adapted to move said movable member about said pivot arc.
Claim 4
Dependent Claim
37 words
A device as defined in claim 2, wherein the crank is pivoted in a wall of said box and the movable member includes a slot engaged by the crank to pivot the movable member through said arc.
Claim 5
Dependent Claim
23 words
A device as defined in claim 1, wherein said suspension means comprises a spring member holding said movable member against said accessible edge.
Claim 6
Dependent Claim
25 words
A device as defined in claim 4, including a tuning device comprising means for adjusting the force of said spring member against said movable member.
Claim 7
Dependent Claim
43 words
A device as defined in claim 4, wherein the spring comprises a coil spring having two circumferentially extending ends, means anchoring one such end on the bottom of said box and an adjustably positionable member anchoring the other such end to the lid.
Claim 8
Dependent Claim
37 words
A device as defined in claim 1, including a variable sound control member comprising a spring biased element having thereon damper means positionable to place the damper means in contact with different positions on said sounding board.
Claim 9
Dependent Claim
15 words
A device as defined in claim 1, wherein said sounding board is a wooden panel.
Claim 10
Dependent Claim
36 words
A device as defined in claim 7, wherein said movable member is wooden with a curved contact surface having a layer of friction producing substance thereon to contact said accessible edge during said degree of movement.
Claim 11
Dependent Claim
49 words
A device as defined in claim 1, wherein said lid member is pivoted about one corner of said box-like structure, and said suspension means comprises a first spring holding the lid member away from said box-like structure and a second spring holding the lid in contact with said edge.
Claim 12
Dependent Claim
23 words
A device as defined in claim 10, wherein said first spring is located in a wall of said box adjacent said pivot corner.
Claim 13
Dependent Claim
30 words
A device as defined in claim 1, including a tuner mechanism comprising means for adjusting contact pressure between said accessible edge and said movable member over said degree of movement.
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) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |