US3944225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Baseball bat batting practice sleeve
Assignee: Individual
•
Filing: 1974-09-23
•
Granted: 1976-03-16
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Expires: 1994-09-23
Abstract
Abstract A practice sleeve used in connection with baseball and similar bats which prevents a ball struck by the bat from going any significant distance and improves the users swing. The sleeve is fabricated from a single sheet of rectangular plastic material having a pair of concentric notches cut into one surface the entire length of the plastic sheet. These notches are spaced approximately 1/2 inch apart and are spaced an equal distance from the longitudinal center line of the sheet. The plastic is then folded about the notches to form a substantially V-shaped troughed sleeve having a 1/2 inch blunted ball hitting surface. The sleeve is then provided with shock cords, transversly attached thereto, for holding the sleeve on a bat.
Inventors
- 👤 Daniel F. Greaney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:19
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/0002
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
168 words
An improved practice sleeve in combination with a conventional baseball bat comprising, a strip of yieldable plastic having two concentric slots running the entire length of the strip, said slots having a preselected debth and separated approximate 1/2 inch apart (a preselected distance centrally located) whereby the strip can be bent about the slots forming a three sided substantially V-shaped trough, the area between said slots defined by said 1/2 inch separation being a blunted tip of said sleeve; and a plurality of shock cords, each of said cords being transversely attached across the trough opening of said sleeve at a point therealong for removably securing said sleeve to said bat, a portion of the large end of said bat being enclosed between the walls and shock cords; one of said shock cords having one of its ends permanently affixed to said sleeve and its other end being extended around said bat before being removably attached to said sleeve at a point remote from said one affixed end.
Claim 2
Dependent Claim
168 words
An improved practice sleeve in combination with a conventional baseball bat comprising, a strip of yieldable plastic having two concentric slots running the entire length of the strip, said slots having a preselected debth and separated approximate 1/2 inch apart (a preselected distance centrally located) whereby the strip can be bent about the slots forming a three sided substantially V-shaped trough, the area between said slots defined by said 1/2 inch separation being a blunted tip of said sleeve; and a plurality of shock cords, each of said cords being transversely attached across the trough opening of said sleeve at a point therealong for removably securing said sleeve to said bat, a portion of the large end of said bat being enclosed between the walls and shock cords; one of said shock cords having one of its ends permanently affixed to said sleeve and its other end being extended around said bat before being removably attached to said sleeve at a point remote from said one affixed end.
Claim 3
Dependent Claim
15 words
A practice sleeve according to claim 1 wherein said shock cords number at least three.
Claim 4
Dependent Claim
82 words
A practice sleeve according to claim 2 wherein said other end of said cord is knotted and said sleeve is provided with a hole in one of its sloping sides; a through slot extending from said hole to the edge of said sloping side being provided for receiving said cord for movement from said edge to said hole, said knot being larger than the diameter of said hole to facilitate anchoring said one end of said shock cord to said sloping side.
References Cited (Backward Citations)
US3489415A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-16 | 1979-09-15 | 1980-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-16 | 1983-09-15 | 1984-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-16 | 1987-09-15 | 1988-03-16 | $7700.00 | Window Closed / Lapsed |