US5460369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite baseball bat
Assignee: Baum Research and Development Co Inc
•
Filing: 1993-10-15
•
Granted: 1995-10-24
•
Expires: 2013-10-15
Abstract
Abstract A baseball bat or the like comprises a tube formed with an outer layer of wood veneer covering a layer of fiber reinforced resin, with the tube layers being impregnated with and bonded to one another with a cured resin. The ends of the tube are closed off with caps adhered to the tube by cured resin. The tube may be hollow and may have a foam plastic core with sufficient resiliency to allow the tube to resiliently deform during impact with a baseball. The tube formed by molding over a tubular end which may constitute the foam core or, alternatively, the forming mandrel may be removed after the resin is cured and the resulting cavity filled with foam plastic.
Inventors
- 👤 Charles S. Baum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:13
CPC Classifications
B; B29; B29C; B29C63/00; B29C63/0017; B29C63/0021; A; A63; A63B; A63B59/00; A63B59/50; A63B59/70; B27; B27D; B27D1/00; B27D1/04; B27D1/08; B27M; B27M3/00; B27M3/22; B29C70/00; B29C70/04; B29C70/06; B29C70/08; B29C70/086; B29C70/088; B29C70/28; B29C70/30; B29C70/34; B29C70/345; G; G10; G10D; G10D13/00; G10D13/10; G10D13/12; A63B2102/00; A63B2102/18; A63B2102/24; A63B2209/00; A63B2209/02; B29K; B29K2711/00; B29K2711/14; B29L; B29L2031/00; B29L2031/52; B29L2031/5227
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
76 words
A baseball bat comprising: a hollow tube tapering from a relatively small cross-section handle to a relatively large cross-sectional barrel end, the hollow tube consisting of a cylindrical outer layer of wood veneer, a cylindrical resin reinforced fiber inner layer comprising a plurality of sheets of fiber fabric, and resin impregnating both the outer layer of wood veneer and the fiber inner layer and adhering the outer layer of wood veneer to the fiber inner layer.
Claim 2
Dependent Claim
76 words
A baseball bat comprising: a hollow tube tapering from a relatively small cross-section handle to a relatively large cross-sectional barrel end, the hollow tube consisting of a cylindrical outer layer of wood veneer, a cylindrical resin reinforced fiber inner layer comprising a plurality of sheets of fiber fabric, and resin impregnating both the outer layer of wood veneer and the fiber inner layer and adhering the outer layer of wood veneer to the fiber inner layer.
Claim 3
Dependent Claim
23 words
The bat of claim 1 in which the grain of the outer wood veneer extends parallel to the longitudinal axis of the bat.
Claim 4
Dependent Claim
13 words
The bat of claim 1 in which the resin constitutes an epoxy resin.
Claim 5
Dependent Claim
16 words
The bat of claim 1 in which at least certain of said fiber sheets are woven.
Claim 6
Dependent Claim
16 words
The bat of claim 1 in which at least certain of the fiber sheets are knitted.
Claim 7
Dependent Claim
23 words
The bat of claim 1 further comprising a resin reinforced fiber end cap for the barrel adhered to the tube by the resin.
Claim 8
Dependent Claim
86 words
A baseball bat comprising: a tube tapering from a relatively small cross section handle end to a relatively large cross-sectional barrel end, the tube consisting of a cylindrical outer layer of wood veneer, a cylindrical resin reinforced fiber inner layer comprising a plurality of sheets of fiber fabric, and resin impregnating both the outer layer of wood veneer and the fiber inner layer and adhering the outer layer of wood veneer to the fiber inner layer; and a core comprising foam plastic, disposed within said tube.
Claim 9
Dependent Claim
86 words
A baseball bat comprising: a tube tapering from a relatively small cross section handle end to a relatively large cross-sectional barrel end, the tube consisting of a cylindrical outer layer of wood veneer, a cylindrical resin reinforced fiber inner layer comprising a plurality of sheets of fiber fabric, and resin impregnating both the outer layer of wood veneer and the fiber inner layer and adhering the outer layer of wood veneer to the fiber inner layer; and a core comprising foam plastic, disposed within said tube.
Claim 10
Dependent Claim
24 words
The bat of claim 7 further including a high density weight supported within the foam core adjacent to the barrel end of the tube.
Claim 11
Dependent Claim
100 words
A baseball bat comprising a hollow tube tapering from a relatively small diameter handle end to a relatively larger diameter barrel end, the tube consisting of a cylindrical outer layer of wood veneer overlying a cylindrical inner layer of fiber reinforced resin, the fiber reinforced resin comprising a plurality of layers of fabric having their fibers aligned in differing directions with the layer directly contacting said wood veneer layer having at least certain fibers lying perpendicular to the grain of the wood veneer, the resin impregnating the fibers and the contacting wood veneer surface and adhering them to one another.
Claim 12
Dependent Claim
100 words
A baseball bat comprising a hollow tube tapering from a relatively small diameter handle end to a relatively larger diameter barrel end, the tube consisting of a cylindrical outer layer of wood veneer overlying a cylindrical inner layer of fiber reinforced resin, the fiber reinforced resin comprising a plurality of layers of fabric having their fibers aligned in differing directions with the layer directly contacting said wood veneer layer having at least certain fibers lying perpendicular to the grain of the wood veneer, the resin impregnating the fibers and the contacting wood veneer surface and adhering them to one another.
References Cited (Backward Citations)
US400354A
Cited
US2352533A
Cited
US2379006A
Cited
US2793859A
Cited
US2895737A
Cited
US4014542A
Cited
US4032143A
Cited
US4200479A
Cited
US4331330A
Cited
US4543284A
Cited
US4615936A
Cited
US4689257A
Cited
US4931124A
Cited
US4572508A
Cited
US4705273A
Cited
US4848745A
Cited
US5114144A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-10-23 | 1999-04-24 | 1999-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-23 | 2003-04-24 | 2003-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-23 | 2007-04-24 | 2007-10-24 | $7700.00 | Window Closed / Lapsed |