# US 8,783,239 B2 · Pivotal handle for archery bow

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- Number: US 8,783,239 B2
- Document ID: US8783239B2
- Status: Granted
- Kind: B2
- Application number: 13/722,299
- Filed: 2012-12-20
- Published: 2014-06-26
- Granted: 2014-07-22
- Earliest claimed: 2012-12-20
- Applicants: Emil Vyprachticky
- Inventors: Emil Vyprachticky
- Web page: https://patentgrep.com/patent/US8783239B2

## CPC

- F41B 5/14: Details of bows; Accessories for arc shooting (sighting devices for bows F41G1/467)
- F41B 5/1403: {Details of bows; (camera's on bows F41B5/1492)}
- F41B: WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR (projectiles for fishing, e.g. fish-spears, A01K81/00; sports implements for throwing A63B65/00, e.g. boomerangs A63B65/08; stationary apparatus for projecting sports balls, e.g. tennis balls, A63B69/40; throwing or slinging toys A63H33/18; knives, axes B26B; projectiles or missiles other than those incorporating springs as projecting means F42B6/00)

## Abstract

The present invention is a self-aligning archery bow that has upper and lower risers and a grip intermediate the risers. A U-shaped handle overlying the grip is pivotally attached to the grip whereby the handle pivots about vertical axes in response to torque on the bow produced by force on the draw string, thus compensating for the tendency of the bow and the grip to twist in the hand of the archer. The pivotal movement of the handle is accommodated through a plurality of ball bearings that operatively engage the grip and the handle, and a pivotal bolt that connects the handle to the grip.

## Claims

### Claim 1

A pivotable handle for an archery bow having upper and lower risers comprising,
a grip fixed to and positioned intermediate the upper and lower risers of the bow, where the grip includes a front surface, an inclined rear surface and spaced apart opposed lateral surfaces,
at least two hemispherical pockets disposed on spaced apart vertically oriented bearing mounting platforms on the rear surface of the bow grip,
a plurality of spherical ball bearings, each having a center point and disposed respectively in each of the hemispherical pockets,
a generally U-shaped handle adapted to cover the rear surface of the fixed bow grip and to overlay and be spaced apart from the lateral side surfaces of the grip, said handle having a rear interior surface including spaced apart hemispherical pockets adapted to seat the respective ball bearings disposed in the bow grip pockets,
pivotally movable fastening means having a pivot point for interconnecting the handle to the bow grip, where the fastening means pivots in a plane perpendicular to the plane of the bow grip and the upper and lower risers.

### Claim 2 (depends on 1)

The pivotal handle of claim 1 where the fastening means includes a bolt having a truncated head.

### Claim 3 (depends on 2)

The pivotal handle of claim 2 where the fastening means includes a base member secured to the rear surface of the bow grip intermediate the spaced apart bearing mounting platforms, said base member having a countersunk bore to embrace the head of the bolt.

### Claim 4 (depends on 3)

The pivotal handle of claim 3 where the bolt threadingly engages the rear interior surface of the handle.

### Claim 5 (depends on 4)

The pivotal handle of claim 4 where the bow grip includes a bore having a longitudinal axis aligned with the embraced cap screw, said bore opening on the front surface of the bow grip.

### Claim 6 (depends on 5)

The pivotal handle of claim 5 and further including a slidable cover interconnecting the lateral sides of the grip and positioned to cover the front surface of the bow grip.

### Claim 7 (depends on 1)

The pivotal handle of claim 1 where the center points of the ball bearings and the pivot point of the fastening means lie in a common plane.

### Claim 8

A self-aligning archery bow having upper and lower risers and comprising,
a grip intermediate the risers and integral therewith, said grip having flat lateral sides, a front surface and an inclined rear surfaces,
a U-shaped handle overlaying the rear surface of the grip and spaced apart from its lateral sides,
a plurality of ball bearings, each having a center point, operatively engaging the handle and the inclined rear surface of the grip, and
fastening means for pivotally interconnecting the handle to the grip where the fastening means includes a pivotal center point.

### Claim 9 (depends on 8)

The archery bow of claim 8 where the ball bearings are vertically and horizontally spaced apart.

### Claim 10 (depends on 9)

The archery bow of claim 9 where the center points of the ball bearings and the pivotal center point of the fastening means lie in a common plane.

### Claim 11 (depends on 10)

The archery bow of claim 10 where the fastening means includes a mounting block carried by the rear surface of the grip and a bolt pivotally disposed in the mounting block and secured into the handle.