U.S. patent number 3,580,572 [Application Number 04/775,409] was granted by the patent office on 1971-05-25 for bowler's equalizing weight.
Invention is credited to William J. Davis, Richard A. Strafford.
United States Patent |
3,580,572 |
Strafford , et al. |
May 25, 1971 |
BOWLER'S EQUALIZING WEIGHT
Abstract
An equalizing weight of elongate arcuate configuration that
substantially conforms to the exterior surface of the hand or
wrist, and may be removably secured thereto to improve the
performance of the bowler using the same.
Inventors: |
Strafford; Richard A. (Stanton,
CA), Davis; William J. (Stanton, CA) |
Family
ID: |
25104320 |
Appl.
No.: |
04/775,409 |
Filed: |
November 13, 1968 |
Current U.S.
Class: |
473/59 |
Current CPC
Class: |
A63D
5/00 (20130101) |
Current International
Class: |
A63D
5/00 (20060101); A63b 071/14 () |
Field of
Search: |
;273/54 (B)/ ;272/67,80
;224/28 ;2/161 (A)/ |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Oechsle; Anton O.
Claims
We claim:
1. A weight-equalizing device that may be worn by a bowler on the
hand of the arm opposite the arm supporting the bowling ball to
improve the bowler's balance, which device includes:
a. an elongate lead weight having a longitudinal concave inner face
that conforms generally to said bowler's wrist and back of the
hand, and a convex outer face that conforms generally to said
bowler's palm;
b. a rectangular wire member of greater length than said weight,
said member having the central portion thereof embedded in said
weight and longitudinally oriented relative thereto, and said
member having two end portions that project from opposite ends of
said weight to define two loops;
c. a protective envelope that encompasses the major the lead of the
exterior surface of said weight to prevent the leading defining
said weight from coming in contact with the skin of the bowler to
discolor said skin; and
d. a single continuous band that engages said loops, with said band
including two reaches that may be disposed to cross over one
another when said weight is positioned on the back of said bowler's
hand to permit the thumb of said hand to be positioned between said
reaches and prevent any substantial movement of said weight
relative to said hand.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
A bowler's equalizing weight that conforms generally to the
exterior surface of the hand or wrist of the user and means for
removably attaching the same thereto.
2. Description of the Prior Art
During the past few years, the popularity of bowling as a source of
amusement has increased tremendously. To achieve consistently high
scoring a bowler's delivery of the balls must be smooth and
uniform, and one conforming to his particular physique and muscle
coordination.
Beginners, as well as many amateur bowlers who have played for a
considerable length of time, have difficulty in attaining a smooth,
uniform delivery, because of the fact that the bowling ball is
relatively heavy and tends to prevent the bowler from walking
straight to the foul line in a relaxed, balanced position.
When the present invention is worn on the bowler's arm or wrist
opposite to that supporting the bowling ball, the bowler is in a
more normal, balanced position than he would be if he were not
wearing the weight, and, as a result, he more easily executes a
smooth arm swing in delivering the bowling ball. Also, because the
bowler is in a more balanced position, there is less tendency for
him to drop his shoulders and deviate from a straight path as he
approaches the foul line. The balanced condition achieved by a
bowler wearing the present invention is one normally attained, only
after practice for a prolonged period of time if the weight were
not worn.
SUMMARY OF THE INVENTION
An arcuate equalizing weight that may be worn on the hand or wrist
of a bowler opposite to the hand supporting the ball to achieve a
more balanced and relaxed position than if the weight were not so
worn.
A major object of the invention is to provide a bowler's equalizing
weight that imparts an improved balance to the bowler wearing the
same, permits a smoother arm swing without dropping the shoulders,
and encourages the bowler to walk straight in approaching the foul
line, all to the end that the bowler will develop consistent form
in ball delivery and improve his score as a result thereof.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a bowler in action, wearing the
equalizing weight on the hand opposite to that which supports the
ball;
FIG. 2 is a top plan view of the device on a user's hand;
FIG. 3 is an end elevational view of the device;
FIG. 4 is a bottom plan view of the device that includes an
alternate form of band which is adjustable in length; and
FIG. 5 is a longitudinal cross-sectional view of the device taken
on the line 5-5 of FIG. 4.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
The bowler's equalizing weight A is shown in FIG. 1 in the position
it normally occupies when worn by a bowler B. The device A is
removably worn on the hand C or wrist D of the bowler B of the arm
E opposite to the arm E' supporting the bowling ball F. When the
arm E supporting the weight A is extended outwardly from the body F
of the bowler B, as shown in FIG. 1, and the arm E' maintained
relatively close to the body G of the bowler, the bowler is in a
more balanced condition whereby it is possible for his arm E' to
swing smoothly without dropping his shoulders, and also encourages
the bowler to pursue a relatively straight path as he moves towards
the foul line. Thus, by placing the bowler B IN A MORE BALANCED
POSITION THE WEIGHT A automatically corrects or minimizes
deficiencies in his form of delivery and the deficiencies so
eliminated or minimized are those which cause the average bowler to
bowl in an erratic manner.
The equalizing device A, as best seen in FIGS. 4 and 5, includes an
elongate arcuate weight 10 that has a longitudinal concave inner
surface 10a which generally conforms to the back of the hand C, or
a surface portion of the wrist D, should the bowler B desire to
wear the device A on his wrist. Weight 10 is preferably formed from
lead or a lead alloy due to the high density thereof, as well as
the ease with which lead may be cast or formed into a desired
shape.
A length of steel wire 12 is bent to define a hollow rectangle 14
that has ends 16 and sides 18. The rectangle is embedded in
substantially the center of the weight 10, with portions 18a of the
sides 18 projecting from the ends of the weight. The ends 16 and
the projecting side portions 18a cooperatively define loops 20.
The weight 10 is covered with an envelope 22 of a fabric or other
protective material to prevent the metal weight 10 from coming into
contact with the hand C or wrist D of the bowler B.
An endless band H of a flexible resilient material is provided, as
shown in FIGS. 2 and 3, that engages both of the loops 20. The
reaches 24 and 24' of the band H may be laterally separated (FIG.
2) to extend across the palm of the hand C, with the thumb 26 of
the bowler B extending between end portions of the spaced reaches
as also shown in FIG. 2. The length of the band H is so selected as
to maintain the weight 10 in pressure contact with the hand C or
wrist D of the bowler B.
An alternate form of band G that may be used to support the weight
10 on the hand C of bowler B is illustrated in FIG. 4. Band G
includes a first segment 28 provided with a first looped and
stitched end portion 30 that engages one of the ends 16. First
segment 28 also includes a second stitched end portion which
defines a loop 32 that may be removably engaged by a flat angular
hook 34.
A second band segment 35 is secured to the end 16 opposite that
engaged by the first segment 28. A transverse slot 36 is formed in
hook 34 through which a looped portion 38 of the second band
segment 34 extends. The free end of looped portion 38 is secured to
a buckle 40 that is slidably adjustable on the second band segment
34. By slidable movement of the buckle 40, the effective length of
the second band segment 34 may be varied to the extent that the
first and second band segments snugly engage the hand C or wrist D
of bowler B. Weight 10 preferably has a longitudinal convex outer
surface 10b that conforms to the palm (not shown) of hand C when
the weight 10 is transversely disposed relative to the palm, and
the hand C grips the weight 10.
The use and operation of the weight-equalizing device have been
explained previously in detail and need not be repeated.
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