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Details for Patent: 3,951,125

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Details for Patent: 3,951,125

Title: Football passer
Abstract:One end of a throwing arm that is pivotally mounted on a frame and is equipped at one end with a football holder. Two propulsion springs are attached to the other end of the throwing arm and extend to a cocking arm that is also pivotally mounted on the frame. The common pivot axis for the two arms is located adjacent to one end of the cocking arm and between the ends of the throwing arm adjacent the springs. In operation, the throwing arm is latched in a "ready-to-throw" position generally parallel to the intended direction of flight of the football. The cocking arm is pivoted into and latched in a position in which the springs are extended so as to exert a biasing force on the throwing arm. The throwing arm is released and the springs pivot the throwing arm and the ball holder forwardly in an arc. The football is propelled from the ball holder by the centrifugal and tangential forces imparted by the pivotal motion of the holder, without any impact that arrests movement of the holder.
Inventor(s): Dixon; Jack R. (Miami, OK)
Assignee: Indian Head Inc. (New York, NY)
Filing Date:Sep 23, 1974
Application Number:05/508,348
Claims:1. A football passer comprising a frame, an elongated throwing arm mounted adjacent one end on the frame for pivotal movement about a pivot axis and having adjacent its other end a holder for a football, a movable cocking member mounted on the frame for pivotal movement about said axis adjacent one end and having a hand engageable portion adjacent its other end, tension spring means coupled under tension between said one end of the throwing arm at a location thereon on the opposite side of the pivot axis from the holder and a location on the cocking arm intermediate said pivot axis and said other end thereof such that said spring means tends to position the throwing arm and the cocking member in first predetermined relative positions with the spring means imposing a minimum tension force one the throwing arm and the cocking member, latch means for releasably coupling the cocking member to the frame, and trigger means for releasably coupling the throwing arm to the frame, said latch means and triggr means releasably coupling respectively the cocking member and the throwing arm to the frame in second predetermined relative positions and generating a maximum propulsion force in said spring means acting between the throwing arm and the cocking member upon release of said trigger means and the cocking member being latched, the spring means causes the throwing arm to be driven from said second predetermined relative positions to said first predetermined relative positions in pivotal movement about the pivot axis to move the holder in an arc and to impart centrifugal and tangential forces to a football in the holder and propel a football from the holder without an impact that arrests movement of the holder.

2. A football passer according to claim 1, wherein the cocking member has a U-shaped configuration including a pair of spaced apart legs and a connecting portion joining one end of each leg to the corresponding end of the other leg, the pivot axis of the throwing arm passing through the other ends of both of said legs and the connecting portion of the cocking member defining the hand-engageable portion of said cocking member.

3. A football passer according to claim 1, wherein the trigger means includes (a) an elongated member that is flexible, resiliently compressible and attached at one end to the throwing arm, and (b) bracket means mounted on the frame for engaging the elongated member, the bracket means defining a slot into which the elongated member is adapted to be pressed so as to couple the throwing arm frictionally to the frame, whereby when the latch means is coupling the cocking member to the frame and the elongated member is in the slot, the spring means tends to pull the elongated member through the slot to release the throwing arm from the frame for pivotal movement after a time delay.

4. A football passer according to claim 3, wherein the bracket means includes two bracket members juxtaposed to define between them the slot for receiving the elongated member and mounted on the frame so that at least one of the bracket members is movable relative to the other bracket member, the slot having a width that is selectively variable by moving said at least one bracket member relative to the other bracket member, thereby selectively adjusting the time delay for releasing the throwing arm.

5. A football passer according to claim 1, wherein the football holder includes a U-shaped member having a pair of legs and a curved connecting portion joining one end of each leg to a corresponding end of the other leg, the other ends of both legs being attached to the throwing arm and at least the curved connecting portion of the U-shaped member being inclined at an angle to the remainder of the U-shaped member which lies generally in a plane perpendicular to the pivot axis of the throwing arm.

6. A football passer according to claim 5, wherein the football holder also includes a rear bracket mounted between the legs of the U-shaped member adjacent the other ends of the legs for engaging one nose end of a football and pushing it while the throwing arm is moving from said second predetermined relative positions to said first predetermined relative positions.

7. A football passer according to claim 1, wherein the frame includes a pair of bipods, each having a shorter leg and a longer leg, the shorter legs being positioned forward of the longer legs and the throwing arm being mounted on at least one of the longer legs of the bipods, thereby inclining the pivot axis of the throwing arm at an angle to the vertical.

8. A football passer according to claim 7, wherein the legs of each bipod are fitted with holes to receive spikes that pass through the legs and into the ground to give additional stability to the passer.

9. A football passer according to claim 1, further comprising a cover secured to the frame, the cover being arranged above the throwing arm and the football holder and extending over at least a part of the arc through which the holder is moved.

10. A football passer according to claim 1, wherein the trigger means includes a catch member attached at one end to the throwing arm, a latch bar pivotally mounted intermediate its ends of the frame and adapted at one end to engage the other end of the catch member, and a bellows member mounted at one end on the frame and attached at its other end to the other end of the latch bar, whereby when the latch means is coupling the cocking member to the frame and the latch bar is engaging the catch member, the spring means tends to bias the throwing arm so as to pivot the latch bar against the bellows member and compress the bellows member, the latch bar disengaging the catch member after pivoting beyond a particular position.

11. A football passer according to claim 10, wherein the trigger means also includes a release member mounted on the frame for holding the latch bar against pivotal movement, the release member being movable between a first position in which the release member is adapted to engage and hold the latch bar and a second position in which the latch bar is free to move relative to the release member.

12. A football passer according to claim 10, wherein the other end of the catch member extends away from the throwing arm and the trigger means also includes spring means for biasing the other end of the catch member toward the throwing arm and adjustable stop means for limiting movement of the other end of the catch member toward the throwing arm, the stop means being adjustable to vary selectively the extent to which the other end of the catch member can move toward the throwing arm and thereby to vary the particular position beyond which the latch bar must rotate to disengage the catch member.

13. A football passer comprising:

a. a frame;

b. an elongated throwing arm mounted adjacent one end on the frame for pivotal movement about a pivot axis, said arm having adjacent its other end a holder for a football;

c. propulsion means associated with the throwing arm for pivoting the throwing arm relative to the frame about said pivot axis and moving the holder in an arc to impart centrifugal and tangential forces to a football in the holder and propel a football from the holder without an impact that arrests movement of the holder; and

d. trigger means for releasably coupling the throwing arm to the frame in addition to the pivotal mounting of the throwing arm on the frame and for triggering propulsion of the throwing arm after a time delay, the trigger means including:

i. an elongated member that is flexible, resiliently compressible and attached at one end to the throwing arm, and

ii. bracket means mounted on the frame for engaging the elongated member, the bracket means defining a slot into which the elongated member is adapted to be pressed so as to couple the throwing arm frictionally to the frame, the propulsion means being adated to pull the elongated member through the slot to release the throwing arm from the frame for pivotal movement after said time delay.

14. A football passer according to claim 13, wherein the bracket means includes two bracket members juxtaposed to define between them the slot for receiving the elongated member and mounted on the frame so that at least one of the bracket members is movable relative to the other bracket member, the slot having a width that is selectively variable by moving said at least one bracket member relative to the other bracket member, thereby selectively adjusting the time delay for releasing the throwing arm.

15. A football passer according to claim 13, wherein the elongated member includes a strip of material having a predetermined thickness and the bracket means includes a bracket member having said slot formed therein, the thickness of the strip being at least less than the width of said slot and the strip being adapted to be pressed into said slot.

16. A football passer according to claim 15, wherein the bracket is rotatably mounted on the frame for selective variation of the configuration of the strip when the strip is in the slot, thereby selectively to adjust the time delay after which the throwing arm is released.

17. A football passer comprising:

a. a frame;

b. an elongated throwing arm mounted adjacent one end on the frame for pivotal movement about a pivot axis, said arm having adjacent its other end a holder for a football;

c. propulsion means associated with the throwing arm for pivoting the throwing arm relative to the frame about said pivot axis and moving the holder in an arc to impart centrifugal and tangential forces to a football in the holder and propel a football from the holder without an impact that arrests movement of the holder; and

d. trigger means for releasably coupling the throwing arm to the frame and for triggering propulsion of the throwing arm after a time delay, the trigger means including a catch member attached at one end to the throwing arm, a latch bar pivotally mounted intermediate its ends on the frame and adapted at one end to engage the other end of the catch member, and a bellows member mounted at one end on the frame and attached at its other end to the other end of the latch bar, whereby when the latch bar is engaging the catch member, the propulsion means is adapted to bias the throwing arm so as to pivot the latch bar against bellows member and compress the bellows member, the latch bar disengaging from the catch member after pivoting beyond a particular position.

18. A football passer according to claim 17, wherein the trigger means also includes a release member mounted on the frame for holding the latch bar against pivotal movement, the release member being movable between a first position in which the release member is adapted to engage and hold the latch bar and a second position in which the latch bar is free to move relative to the release member.

19. A football passer according to claim 7, wherein the other end of the catch member extends away from the throwing arm and the trigger means also includes spring means for biasing the other end of the catch member toward the throwing arm and adjustable stop means for limiting movement of the other end of the catch member toward the throwing arm, the stop means being adjustable to vary selectively the extent to which the other end of the catch member can move toward the throwing arm and thereby to vary the particular position beyond which the latch bar must rotate to disengage the catch member.
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