Patent US5954602A successfully refreshed from Google Patents.
US5954602A
Expired / Lapsed
US
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Bat end plug and method for making the same
Assignee: Wilson Sporting Goods Co
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Filing: 1998-10-02
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Granted: 1999-09-21
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Expires: 2018-10-02
Abstract
Abstract An end plug for a tubular bat includes a rigid plug member that forms the closure of the barrel portion of the bat. The plug member has radial supports formed thereon. The end plug further includes a rigid reinforcing member that cooperatively interconnects with the plug member to reinforce the supports formed thereon. A resilient member supports the plug member and the reinforcing member within the barrel portion of the bat. A method of forming and installing an end plug includes interconnecting a plug member and a reinforcing member such that the reinforcing member reinforces supports formed on the plug member. The plug member and the reinforcing member are then positioned within the opening of the barrel portion so that the plug member forms a closure of the barrel portion. Liquid material is poured into the handle end of the bat and allowed to drain through the frame of the bat until it rests on the plug member. The liquid material then solidifies to form a support member.
Inventors
- 👤 Michael D. Eggiman
- 👤 Mark A. Fritzke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:37
CPC Classifications
A; A63; A63B; A63B60/00; A63B60/06; A63B60/16; A63B2102/00; A63B2102/18; A63B59/00; A63B59/50; A63B60/48; A63B60/54
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
43 words
A bat end, comprising: a tubular barrel portion; a tubular insert positioned within the barrel portion; a rigid plug member forming a closure of the barrel portion; and a resilient supporting member in supportive engagement with the barrel portion, insert and plug member.
Claim 2
Dependent Claim
43 words
A bat end, comprising: a tubular barrel portion; a tubular insert positioned within the barrel portion; a rigid plug member forming a closure of the barrel portion; and a resilient supporting member in supportive engagement with the barrel portion, insert and plug member.
Claim 3
Dependent Claim
13 words
The bat end of claim 1, wherein the plug member includes plural supports.
Claim 4
Dependent Claim
22 words
The bat end of claim 2, further including a rigid reinforcing member defining grooves that are adapted to cooperatively receive the supports.
Claim 5
Dependent Claim
24 words
The bat end of claim 3, wherein the reinforcing member is substantially disk-shaped and has grooves formed in one side of the reinforcing member.
Claim 6
Dependent Claim
23 words
The bat end of claim 4, wherein at least one ridge is formed in the reinforcing member on a side opposite the grooves.
Claim 7
Dependent Claim
11 words
The bat end of claim 2, wherein the supports extend radially.
Claim 8
Dependent Claim
15 words
The bat end of claim 1, wherein the plug member has a substantially frustro-conical shape.
Claim 9
Dependent Claim
20 words
The bat end of claim 1, wherein the plug member defines tabs extending into the supporting member for engagement therewith.
Claim 10
Dependent Claim
23 words
The bat end of claim 1, wherein the plug member defines an annular groove adapted to receive an end of the barrel portion.
Claim 11
Dependent Claim
56 words
A bat end plug, comprising: a rigid plug member capable of forming a closure of a hollow bat barrel portion, and having supports formed thereon; and a rigid reinforcing member cooperatively engaging the plug member to reinforce the supports; and a resilient support member which substantially encases and supports the plug member and the reinforcing member.
Claim 12
Dependent Claim
56 words
A bat end plug, comprising: a rigid plug member capable of forming a closure of a hollow bat barrel portion, and having supports formed thereon; and a rigid reinforcing member cooperatively engaging the plug member to reinforce the supports; and a resilient support member which substantially encases and supports the plug member and the reinforcing member.
Claim 13
Dependent Claim
22 words
The end plug of claim 10, wherein the reinforcing member has a first side which defines grooves that cooperatively receive the supports.
Claim 14
Dependent Claim
13 words
The end plug of claim 10, wherein the reinforcing member is substantially disk-shaped.
Claim 15
Dependent Claim
25 words
The end plug of claim 11, wherein the reinforcing member has a second side opposite the first side, which defines at least one annular ridge.
Claim 16
Dependent Claim
11 words
The end plug of claim 10, wherein the supports extend radially.
Claim 17
Dependent Claim
15 words
The end plug of claim 10, wherein the plug member forms a substantially frustro-conical shape.
Claim 18
Dependent Claim
40 words
The end plug of claim 15, wherein the plug has a large diameter portion which defines an annular groove capable of receiving a bat barrel end portion, and a smaller diameter portion which extends axially from the large diameter portion.
Claim 19
Dependent Claim
25 words
The end plug of claim 16, wherein the plug member defines tabs extending outwardly from the small diameter portion for engagement with the resilient member.
Claim 20
Dependent Claim
96 words
A bat, comprising: a tubular frame having an enlarged barrel portion at one end; a tubular insert supported within the barrel portion; a substantially frustro-conical rigid plug member forming a closure of the barrel portion, the plug member defining a bore and including radial supports spanning the bore and outwardly extending tabs; a substantially rigid disk-shaped reinforcing member positioned within the bore and forming channels to cooperatively receive the supports; and a resilient support member which supportively engages the plug member, tabs, reinforcing member, and insert, the resilient support member being supported within the barrel portion.
Claim 21
Dependent Claim
96 words
A bat, comprising: a tubular frame having an enlarged barrel portion at one end; a tubular insert supported within the barrel portion; a substantially frustro-conical rigid plug member forming a closure of the barrel portion, the plug member defining a bore and including radial supports spanning the bore and outwardly extending tabs; a substantially rigid disk-shaped reinforcing member positioned within the bore and forming channels to cooperatively receive the supports; and a resilient support member which supportively engages the plug member, tabs, reinforcing member, and insert, the resilient support member being supported within the barrel portion.
Claim 22
Dependent Claim
47 words
The bat of claim 18, wherein the plug member includes a radial wall and a circumferential wall extending from the periphery of the radial wall, the plug member defining an annular groove around the periphery of the radial wall to receive an end of the barrel portion.
Claim 23
Independent Claim
110 words
A method of forming a bat end plug, comprising: providing a tubular bat frame having a barrel portion and a handle portion; placing a tubular insert within the barrel portion; providing a rigid plug member having supports formed thereon; coupling a substantially rigid reinforcing member to the plug member to form an assembly, such that the reinforcing member supportively engages the supports; inserting the assembly into the barrel portion to form a closure of the barrel portion; pouring a liquid material into the handle portion and allowing it to run through the frame until it rests on the plug member; and allowing the liquid material to solidify around the assembly.
Claim 24
Independent Claim
110 words
A method of forming a bat end plug, comprising: providing a tubular bat frame having a barrel portion and a handle portion; placing a tubular insert within the barrel portion; providing a rigid plug member having supports formed thereon; coupling a substantially rigid reinforcing member to the plug member to form an assembly, such that the reinforcing member supportively engages the supports; inserting the assembly into the barrel portion to form a closure of the barrel portion; pouring a liquid material into the handle portion and allowing it to run through the frame until it rests on the plug member; and allowing the liquid material to solidify around the assembly.
Claim 25
Dependent Claim
14 words
The method of claim 16, wherein the liquid material becomes resilient when it solidifies.
Claim 26
Dependent Claim
11 words
The method of claim 17, wherein the liquid material is urethane.
References Cited (Backward Citations)
US1499128A
Cited
US1611858A
Cited
US3116926A
Cited
US3811596A
Cited
CA962291A
Cited
US3727295A
Cited
US3801098A
Cited
US3830496A
Cited
US3861682A
Cited
US3963239A
Cited
US3876204A
Cited
US3841130A
Cited
US4056267A
Cited
US4241919A
Cited
US4600193A
Cited
US4744136A
Cited
US4951948A
Cited
US5458330A
Cited
US5219164A
Cited
US5415398A
Cited
US5421572A
Cited
US5494280A
Cited
US5785614A
Cited
US5393055A
Cited
US5511777A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-09-20 | 2003-03-22 | 2003-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-09-20 | 2007-03-22 | 2007-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-09-20 | 2011-03-22 | 2011-09-21 | $7700.00 | Window Closed / Lapsed |