US4768785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Training device for baseball/batting practice softball
Assignee: Individual
•
Filing: 1987-01-07
•
Granted: 1988-09-06
•
Expires: 2007-01-07
Abstract
Abstract A practice device for assisting a batter in learning a proper swing includes an elongated, lightweight, tubular member having two longitudinal ends which forms a longitudinal extension of the handle of the bat. The extension is circularly symmetrical about the longitudinal axis of the bat and has a fastener at one end for attachment coaxially of the member to the bat handle.
Inventors
- 👤 George Patterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:28
CPC Classifications
A; A63; A63B; A63B60/00; A63B60/06; A63B60/22; A63B60/28; A63B60/08; A63B60/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
124 words
A practice device for assisting a batter in learning a proper swing with one of a baseball and a softball bat, the bat having two generally cylindrical ends and a longitudinal axis, one end having a smaller diameter about the axis than the other end, a handle at the smaller diameter end, comprising: an elongated, lightweight tubular member forming a longitudinal extension of the smaller diameter handle end, the extension being circularly symmetrical about the axis and of a length to brush against the batter's mid-section when the bat is held by the handle in ball-striking position in front of the batter, the longitudinal tubular member having two longitudinal ends; and means at the handle end coaxially attaching the member to the bat handle.
Claim 2
Dependent Claim
124 words
A practice device for assisting a batter in learning a proper swing with one of a baseball and a softball bat, the bat having two generally cylindrical ends and a longitudinal axis, one end having a smaller diameter about the axis than the other end, a handle at the smaller diameter end, comprising: an elongated, lightweight tubular member forming a longitudinal extension of the smaller diameter handle end, the extension being circularly symmetrical about the axis and of a length to brush against the batter's mid-section when the bat is held by the handle in ball-striking position in front of the batter, the longitudinal tubular member having two longitudinal ends; and means at the handle end coaxially attaching the member to the bat handle.
Claim 3
Dependent Claim
17 words
A practice device as claimed in claim 1, the attachment means comprising an axially positioned screw means.
Claim 4
Dependent Claim
41 words
A practice device as claimed in claim 1, the extension having an outer diameter adjacent the handle no greater than the outermost diameter of the bat handle, whereby the batter may freely hold the handle without interference from the attached extension.
Claim 5
Dependent Claim
20 words
A practice device as claimed in claim 1: the extension having an axial length between about twelve and twenty inches.
Claim 6
Dependent Claim
78 words
A practice device as claimed in claim 1, the extension including a plug attached to the inside of and at the attachment end of the extension, the attachment screw means comprising a screw coaxially passing through the plug into the handle of the bat holding the plug and bat handle end together, the extension and the bat handle having end surfaces transverse to the axis complementary to each other and held flush against each other by the screw.
Claim 7
Dependent Claim
13 words
A practice device as claimed in claim 5, the end surfaces being flat.
References Cited (Backward Citations)
US3955816A
Cited
US4555111A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-09-06 | 1992-03-07 | 1992-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-09-06 | 1996-03-07 | 1996-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-09-06 | 2000-03-07 | 2000-09-06 | $7700.00 | Window Closed / Lapsed |