US4655452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Batting practice device
Assignee: Individual
•
Filing: 1985-01-28
•
Granted: 1987-04-07
•
Expires: 2005-01-28
Abstract
Abstract A batting practice device includes an extensible frame which is pivotally mounted to a base and oriented in a generally vertical position. An upper arm is pivotally mounted to the frame and extends in a direction generally perpendicular to the frame. An upper wheel is rotatably mounted to the upper arm for rotation about an axis generally perpendicular to the frame. A lower arm is rigidly mounted to the frame at a position below the upper arm and extends in a direction generally perpendicular to the frame. A lower wheel is rotatably mounted to the lower arm for rotation about an axis generally perpendicular to the frame. Outer circumferences of the upper and lower wheels cooperate to form a nip through which a bat is swung during practice. An adjustable bias means urges the upper and lower wheels together. The frame may be raised and lowered to accommodate batters of differing heights and tilted to simulate different types of pitches.
Inventors
- 👤 Eugene W. Huerstel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:54
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/0002
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
165 words
A batting practice device including: a base; a frame mounted to the base and oriented in a generally vertical position; first wheel means which is undriven except when contacted by a baseball bat in use having an outer circumference and being mounted with respect to the frame for rotation about an axis generally perpendicular to the frame; second undriven wheel means which is undriven except when contacted by a baseball bat in use having an outer circumference and being mounted with respect to the frame for rotation about an axis generally perpendicular to the frame; means for mounting the first and second wheel means to the frame and for allowing relative movement therebetween, the outer circumference of the first wheel means cooperating with the outer circumference of the second wheel means to form an unobstructed nip through which a bat is swung during practice; and bias means for applying a bias force to urge the outer circumferences of the first and second wheel means together.
Claim 2
Dependent Claim
165 words
A batting practice device including: a base; a frame mounted to the base and oriented in a generally vertical position; first wheel means which is undriven except when contacted by a baseball bat in use having an outer circumference and being mounted with respect to the frame for rotation about an axis generally perpendicular to the frame; second undriven wheel means which is undriven except when contacted by a baseball bat in use having an outer circumference and being mounted with respect to the frame for rotation about an axis generally perpendicular to the frame; means for mounting the first and second wheel means to the frame and for allowing relative movement therebetween, the outer circumference of the first wheel means cooperating with the outer circumference of the second wheel means to form an unobstructed nip through which a bat is swung during practice; and bias means for applying a bias force to urge the outer circumferences of the first and second wheel means together.
Claim 3
Dependent Claim
19 words
The device of claim 1 and including means for raising and lowering the frame with respect to the base.
Claim 4
Dependent Claim
16 words
The device of claim 2 and including means for pivotally mounting the frame to the base.
Claim 5
Dependent Claim
21 words
The device of claim 3 and including means for orienting the frame in a position tilted with respect to the base.
Claim 6
Dependent Claim
35 words
The device of claim 2 wherein the frame is generally rectangular in shape and includes a lower section mounted to the base and an upper section which slides up and down on the lower section.
Claim 7
Dependent Claim
13 words
The device of claim 1 and including means for adjusting the bias force.
Claim 8
Dependent Claim
21 words
The device of claim 1 and including means for varying a resistance to rotation of the first and second wheel means.
Claim 9
Dependent Claim
36 words
The device of claim 1 wherein the means for mounting the first wheel means to the frame includes: an upper arm pivotally mounted to the frame and extending in a direction generally perpendicular to the frame.
Claim 10
Dependent Claim
40 words
The device of claim 7 wherein the means for mounting the second wheel means to the frame includes: a lower arm rigidly mounted to the frame below the upper arm and extending in a direction generally perpendicular to the frame.
Claim 11
Dependent Claim
43 words
The device of claim 8 wherein the bias means includes: a spring positioned on a top side of the first arm means; and compression means attached to and adjustable with respect to the frame for compressing the spring against the first arm means.
Claim 12
Dependent Claim
14 words
The device of claim 10 and including a crank for adjusting the compression means.
Claim 13
Dependent Claim
79 words
The device of claim 11 wherein the compression means includes: a bracket mounted to and extending in a perpendicular direction with respect to the frame and having a threaded bore vertically aligned with the spring; a threaded rod fitting into the threaded bore in the bracket; and a cup-shaped element opening in a downward direction having a base attached to a lower end of the threaded rod and having an opening which surrounds an upper portion of the spring.
Claim 14
Independent Claim
14 words
The device of claim wherein the first and second wheel means include circular wheels.
Claim 15
Dependent Claim
37 words
The device of claim 1 wherein the outer circumferences of the first and second wheel means are comprised of a polyurethane material to absorb shock, prevent rebounding, and grip the bat as it passes through the nip.
Claim 16
Dependent Claim
21 words
The device of claim 1 wherein a center hub of the first and second wheel means is comprised of hard plastic.
Claim 17
Dependent Claim
25 words
The device of claim 1 wherein the means for varying the resistance to rotation of the upper and lower wheel means includes disc brake means.
Claim 18
Dependent Claim
26 words
The device of claim 1 wherein the means for varying the resistance to rotation of the upper and lower wheel means includes adjustable spring bias means.
Claim 19
Dependent Claim
15 words
The device of claim 1 and including hydraulic means for raising and lowering the frame.
Claim 20
Dependent Claim
22 words
The device of claim 1 and including hydraulic means for orienting the frame in a tilted position with respect to the base.
Claim 21
Dependent Claim
32 words
The device of claim 1 and including wheels rotatably attached to a lower portion of the frame for allowing the batting practice device to be rolled to and from a practice area.
Claim 22
Dependent Claim
186 words
A batting practice device including: a base; a frame mounted to the base and oriented in a generally vertical position; an upper arm pivotally mounted to the frame and extending in a direction generally perpendicular to the frame; an upper wheel which is undriven except when contacted by a baseball bat in use having an outer circumference and being rotatably mounted to the upper arm for rotation about an axis generally perpendicular to the frame; a lower arm rigidly mounted to the frame at a position below the upper arm and extending in a direction generally perpendicular to the frame; a lower wheel which is undriven except when contacted by a baseball bat in use having an outer circumference and being rotatably mounted to the lower arm for rotation about an axis generally perpendicular to the frame, the outer circumference of the lower wheel cooperating with the outer circumference of the upper wheel to form an unobstructed nip through which a bar is swung during practice; and bias means for applying a bias force to urge the outer circumferences of the upper and lower wheels together.
Claim 23
Dependent Claim
186 words
A batting practice device including: a base; a frame mounted to the base and oriented in a generally vertical position; an upper arm pivotally mounted to the frame and extending in a direction generally perpendicular to the frame; an upper wheel which is undriven except when contacted by a baseball bat in use having an outer circumference and being rotatably mounted to the upper arm for rotation about an axis generally perpendicular to the frame; a lower arm rigidly mounted to the frame at a position below the upper arm and extending in a direction generally perpendicular to the frame; a lower wheel which is undriven except when contacted by a baseball bat in use having an outer circumference and being rotatably mounted to the lower arm for rotation about an axis generally perpendicular to the frame, the outer circumference of the lower wheel cooperating with the outer circumference of the upper wheel to form an unobstructed nip through which a bar is swung during practice; and bias means for applying a bias force to urge the outer circumferences of the upper and lower wheels together.
Claim 24
Dependent Claim
19 words
The device of claim 21 and including means for raising and lowering the frame with respect to the base.
Claim 25
Dependent Claim
16 words
The device of claim 22 and including means for pivotally mounting the frame to the base.
Claim 26
Dependent Claim
21 words
The device of claim 23 and including means for orienting the frame in a position tilted with respect to the base.
Claim 27
Dependent Claim
13 words
The device of claim 21 and including means for adjusting the bias force.
Claim 28
Dependent Claim
20 words
The device of claim 21 and including means for varying a resistance to rotation of the upper and lower wheels.
Claim 29
Dependent Claim
32 words
The device of claim 21 and including wheels rotatably mounted to a lower portion of the frame for allowing the batting practice device to be rolled to and from a practice area.
Claim 30
Dependent Claim
173 words
An athletic training device used to practice swinging an elongated athletic implement adapted to strike an athletic projectile, including: a base; a frame mounted to the base; first wheel means which is undriven except when contacted by the athletic implement in use having an outer circumference and being mounted with respect to the frame for rotation about an axis generally perpendicular to the frame; second wheel means which is undriven except when contacted by the athletic implement in use having an outer circumference and being mounted with respect to the frame for rotation about an axis generally perpendicular to the frame; means for mounting the first and second wheel means to the frame and for allowing relative movement therebetween, the outer circumference of the first wheel means cooperating with the outer circumference of the second wheel means to form an unobstructed nip through which the elongated athletic implement is swung during practice; and bias means for applying a bias force to urge the outer circumferences of the first and second wheel means together.
Claim 31
Dependent Claim
173 words
An athletic training device used to practice swinging an elongated athletic implement adapted to strike an athletic projectile, including: a base; a frame mounted to the base; first wheel means which is undriven except when contacted by the athletic implement in use having an outer circumference and being mounted with respect to the frame for rotation about an axis generally perpendicular to the frame; second wheel means which is undriven except when contacted by the athletic implement in use having an outer circumference and being mounted with respect to the frame for rotation about an axis generally perpendicular to the frame; means for mounting the first and second wheel means to the frame and for allowing relative movement therebetween, the outer circumference of the first wheel means cooperating with the outer circumference of the second wheel means to form an unobstructed nip through which the elongated athletic implement is swung during practice; and bias means for applying a bias force to urge the outer circumferences of the first and second wheel means together.
Claim 32
Dependent Claim
23 words
The athletic training device of claim 28 and including means for adjusting position and orientation of the frame with respect to the base.
Claim 33
Dependent Claim
15 words
The athletic training device of claim 28 and including means for adjusting the bias force.
Claim 34
Dependent Claim
23 words
The athletic training device of claim 28 and including means for varying a resistance to rotation of the first and second wheel means.
Claim 35
Dependent Claim
38 words
The athletic training device of claim 28 wherein the means for mounting the first wheel means to the frame includes: a first arm pivotally mounted to the frame and extending in a direcion generally perpendicular to the frame.
Claim 36
Dependent Claim
38 words
The athletic training device of claim 32 wherein the means for mounting the second wheel means to the frame includes: a second arm rigidly mounted to the frame and extending in a direction generally perpendicular to the frame.
Claim 37
Dependent Claim
17 words
The athletic training device of claim 28 wherein the first and second wheel means include circular wheels.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-04-06 | 1990-10-06 | 1991-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-06 | 1994-10-06 | 1995-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-06 | 1998-10-06 | 1999-04-07 | $7700.00 | Window Closed / Lapsed |