US4898386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Training bat
Assignee: Individual
•
Filing: 1989-02-10
•
Granted: 1990-02-06
•
Expires: 2009-02-10
Abstract
Abstract A training bat comprising a hollow cylindrical bat having a handle end and a striking end. A disk is positioned in the interior of the bat at substantially the center of the bat. A plate is positioned in the interior of the bat at substantially the end of the striking end of the bat. An object is slideably position in the interior of the bat and the object is moveable between the disk and the plate. A hollow chamber is positioned in the handle end of the bat and the chamber is disposed for receiving a weight. A knob is removably positioned on the end of the handle end of the bat whereby the knob closes the end of the hollow chamber.
Inventors
- 👤 Donald A. Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:20
CPC Classifications
A; A63; A63B; A63B59/00; A63B59/50; A63B60/00; A63B60/02; A63B60/04; A63B59/51; A63B59/54; A63B69/00; A63B69/0002
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
117 words
A training bat comprising: a hollow cylindrical bat having a handle end and a striking end; a disk positioned in the interior of said bat, said disk being positioned substantially in the center of said bat; a plate positioned in the interior of said bat at substantially the end of said striking end of said bat; an object slideably positioned in the interior of said bat, said object being moveable between said disk and said plate; a hollow chamber positioned in said handle end of said bat, said chamber disposed for receiving a weight; a knob removably positioned on the end of said handle end of said bat, whereby said knob closes said end of said chamber.
Claim 2
Dependent Claim
117 words
A training bat comprising: a hollow cylindrical bat having a handle end and a striking end; a disk positioned in the interior of said bat, said disk being positioned substantially in the center of said bat; a plate positioned in the interior of said bat at substantially the end of said striking end of said bat; an object slideably positioned in the interior of said bat, said object being moveable between said disk and said plate; a hollow chamber positioned in said handle end of said bat, said chamber disposed for receiving a weight; a knob removably positioned on the end of said handle end of said bat, whereby said knob closes said end of said chamber.
Claim 3
Dependent Claim
34 words
The bat of claim 1, wherein a hollow tube is positioned in the interior of said bat and extends from said disk to said striking plate, said object being moveably positioned in said tube.
Claim 4
Dependent Claim
13 words
The bat of claim 2, wherein said object is a cylindrical metal slug.
Claim 5
Dependent Claim
24 words
The bat of claim 2, wherein said object has a weight that is very small in comparison to the overall weight of said bat.
Claim 6
Dependent Claim
28 words
The bat of claim 1, wherein a plurality of threads are positioned in said end of said chamber at the end of said handle end of said bat.
Claim 7
Dependent Claim
23 words
The bat of claim 5, wherein said hollow chamber extends from said disk to said end of said handle end of said bat.
Claim 8
Dependent Claim
27 words
The bat of claim 6, wherein a weight is positioned in said hollow chamber, said weight extending from said disk towards said threaded projection on said knob.
Claim 9
Dependent Claim
36 words
The bat of claim 7, wherein a resilient member is positioned between said threaded projection of said knob and said weight, said resilient member contacting said weight to keep said weight from moving in said chamber.
Claim 10
Dependent Claim
51 words
The bat of claim 8, wherein said bat is considerably lighter than a conventional bat of the same size when there is not a weight in said chamber and said weight of said bat can be increased considerably over the weight of a conventional bat by placing weights in said chamber.
Claim 11
Dependent Claim
33 words
The bat of claim 5, wherein said knob has a threaded projection that extends from one side of said knob, said threaded projection being disposed for threadingly engaging said threads in said chamber.
Claim 12
Dependent Claim
210 words
A training bat comprising: a hollow cylindrical bat having a handle end and a striking end; a disk positioned in the interior of said bat, said disk being positioned substantially in the center of said bat; a plate positioned in the interior of said bat at substantially the end of said striking end of said bat; a hollow tube positioned in the interior of said bat and extending from said disk to said plate; an object slideably positioned in said tube, said object being moveable between said disk and said plate; a hollow chamber positioned in said handle end of said bat, said chamber extending from said end of said handle end of said bat to said disk; a plurality of threads positioned in said chamber adjacent said end on said handle end of said bat; a knob having a threaded projection where said threaded projection is disposed for threadingly engaging said threads in said chamber whereby said knob closes said end of said chamber; a weight positioned in said chamber, said weight extending from said disk towards said knob; a resilient member positioned between said threaded projection of said knob and said insert, said resilient member bearing against said insert to keep said insert from moving in said chamber.
Claim 13
Dependent Claim
210 words
A training bat comprising: a hollow cylindrical bat having a handle end and a striking end; a disk positioned in the interior of said bat, said disk being positioned substantially in the center of said bat; a plate positioned in the interior of said bat at substantially the end of said striking end of said bat; a hollow tube positioned in the interior of said bat and extending from said disk to said plate; an object slideably positioned in said tube, said object being moveable between said disk and said plate; a hollow chamber positioned in said handle end of said bat, said chamber extending from said end of said handle end of said bat to said disk; a plurality of threads positioned in said chamber adjacent said end on said handle end of said bat; a knob having a threaded projection where said threaded projection is disposed for threadingly engaging said threads in said chamber whereby said knob closes said end of said chamber; a weight positioned in said chamber, said weight extending from said disk towards said knob; a resilient member positioned between said threaded projection of said knob and said insert, said resilient member bearing against said insert to keep said insert from moving in said chamber.
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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) | 1993-02-05 | 1993-08-07 | 1994-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-05 | 1997-08-07 | 1998-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-05 | 2001-08-07 | 2002-02-06 | $7700.00 | Window Closed / Lapsed |