Patent US4457288A successfully refreshed from Google Patents.
US4457288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cam lever compound bow
Assignee: Individual
•
Filing: 1982-08-24
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Granted: 1984-07-03
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Expires: 2002-08-24
Abstract
Abstract In an archery bow having a rigid handle portion and a pair of non-flexing limbs connected with the respective ends thereof, a pair of cams are mounted at the respective ends of the handle portion. The respective ends of the bowstring are connected with the cams and entrained over pulleys at the free ends of the limbs. Resilient members, secured to the handle portion, bear against the camming surface of the cams. As the bowstring is drawn, the cams force the resilient members toward the respective ends of the handle portion and stop the bowstring at full draw at the limit of cam rotation against the resilient members.
Inventors
- 👤 Michael R. Ricord
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:37
CPC Classifications
F; F41; F41B; F41B5/00; F41B5/10; Y; Y10; Y10S; Y10S124/00; Y10S124/90
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
152 words
An archery bow comprising: a handle portion having a front face, a rearward face and opposing end portions and having a pair of limbs projecting from its respective ends; cam means including a disk-like cam having a cam surface mounted on the handle rearward face at its respective end portions for angular rotation parallel with the longitudinal plane of the handle; resilient means secured to the rearward face of said handle portion and bearing against each said cam surface for resisting angular rotation of said cam and normally biasing said cam toward an at rest position; pulley means including a limb pulley secured to the distal end portion of said limbs for connecting a bowstring thereto; and, a bowstring entrained over said limb pulleys and connected at its respective ends with said cams in a manner to angularly rotate said cams in response to drawing said bowstring from its at rest position.
Claim 2
Dependent Claim
152 words
An archery bow comprising: a handle portion having a front face, a rearward face and opposing end portions and having a pair of limbs projecting from its respective ends; cam means including a disk-like cam having a cam surface mounted on the handle rearward face at its respective end portions for angular rotation parallel with the longitudinal plane of the handle; resilient means secured to the rearward face of said handle portion and bearing against each said cam surface for resisting angular rotation of said cam and normally biasing said cam toward an at rest position; pulley means including a limb pulley secured to the distal end portion of said limbs for connecting a bowstring thereto; and, a bowstring entrained over said limb pulleys and connected at its respective ends with said cams in a manner to angularly rotate said cams in response to drawing said bowstring from its at rest position.
Claim 3
Dependent Claim
24 words
The archery bow according to claim 1 in which each said cam means further includes: a generally U-shaped bracket having its bight portion contacting
Claim 4
Dependent Claim
23 words
the handle portion rearward surface and having rearwardly projecting bracket legs; and, a pin extending between said bracket legs and journalling said cam.
Claim 5
Dependent Claim
23 words
the handle portion rearward surface and having rearwardly projecting bracket legs; and, a pin extending between said bracket legs and journalling said cam.
Claim 6
Dependent Claim
47 words
The archery bow according to claim 2 in which each said cam means further includes: a cam pulley secured to said cam concentric with said pin, each respective end portion of said bowstring being entrained around an arc of the periphery of the respective said cam pulley.
Claim 7
Dependent Claim
40 words
The archery bow according to claim 3 in which said cam means further includes: stop means on each said cam for contacting each said resilient means and stopping angular rotation of each said cam at full draw of said bowstring.
Claim 8
Dependent Claim
21 words
The archery bow according to claim 4 in which said resilient means comprises: a pair of leaf springs arcuately curved rearwardly.
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) | 1987-07-03 | 1988-01-02 | 1988-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-03 | 1992-01-02 | 1992-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-03 | 1996-01-02 | 1996-07-03 | $7700.00 | Window Closed / Lapsed |