US3801098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal baseball bat
Assignee: Farley Inc
•
Filing: 1972-01-17
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Granted: 1974-04-02
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Expires: 1992-01-17
Abstract
Abstract A foam filled metal bat is disclosed. The bat comprises a die cast, ball-bat shaped hollow tube of substantially uniform wall thickness having an integrally cast knob over an end of a handle portion. The end of a club portion of the tube is open. A rigid urethane foam extends within the tube from the knob end up to and contiguous with a cap inserted in the open club end. The rigid foam forms a bond with the tube walls and the cap portion which may be a semi-rigid urethane foam or a plug of rubber or metal. A wire extending axially within the rigid foam extends the length of the bat and is anchored at its ends adjacent the integral knob and cap.
Inventors
- 👤 D Gildemeister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:06
CPC Classifications
A; A63; A63B; A63B59/00; A63B59/50; A63B59/51; A63B2102/00; A63B2102/18; Y; Y10; Y10S; Y10S273/00; Y10S273/08
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
153 words
A foam filled metal bat comprising, in combination, an elongate die cast magnesium tube having a club portion of one diameter, an intermediate portion, and a handle end of a reduced diameter, said club portion terminating at one end at the club end and at its other end at said intermediate portion, a core of rigid foam within said elongate tube, and a plug comprising a rubber-like member having an outer cap portion extending beyond said club end of said elongate tube and an axially extending inner portion within said club portion said axially extending portion having a wall adjacent to, but spaced apart from the inner wall to a point closely adjacent said club end whereby said rigid foam extends between said wall of said plug inner portion and said inner wall of said club portion, bonding said axially extending inner portion to said core to form a high-impact resistant unitary structure.
Claim 2
Dependent Claim
153 words
A foam filled metal bat comprising, in combination, an elongate die cast magnesium tube having a club portion of one diameter, an intermediate portion, and a handle end of a reduced diameter, said club portion terminating at one end at the club end and at its other end at said intermediate portion, a core of rigid foam within said elongate tube, and a plug comprising a rubber-like member having an outer cap portion extending beyond said club end of said elongate tube and an axially extending inner portion within said club portion said axially extending portion having a wall adjacent to, but spaced apart from the inner wall to a point closely adjacent said club end whereby said rigid foam extends between said wall of said plug inner portion and said inner wall of said club portion, bonding said axially extending inner portion to said core to form a high-impact resistant unitary structure.
Claim 3
Dependent Claim
34 words
A metal bat according to claim 1 further comprising an elongate member extending lengthwise within said core for maintaining said bat as a unitary structure in the event that said bat be broken apart.
Claim 4
Dependent Claim
43 words
A foam filled metal bat according to claim 1 wherein said plug further has an axially extending hollow plug portion therewithin, said hollow plug portion having an inner surface in contact with said foam and forming a bonding relationship along said inner surface.
Claim 5
Dependent Claim
131 words
A foam filled metal bat comprising, in combination, an elongate die cast magnesium tube having a club portion of one diamter, an intermediate portion, and a handle end of a reduced diameter, said club portion terminating at one end at the club end and at its other end at said intermediate portion, a core of rigid foam within said tube, and a plug at an open portion of said club portion, said plug comprising a semi-rigid urethane foam having an outer cap portion extending beyond said club end and an axially extending inner portion, said inner portion extending from said cap portion into contact with said rigid foam core forming a bond along an inner face between said inner portion and said core to form a high impact resistant unitary structure.
Claim 6
Dependent Claim
131 words
A foam filled metal bat comprising, in combination, an elongate die cast magnesium tube having a club portion of one diamter, an intermediate portion, and a handle end of a reduced diameter, said club portion terminating at one end at the club end and at its other end at said intermediate portion, a core of rigid foam within said tube, and a plug at an open portion of said club portion, said plug comprising a semi-rigid urethane foam having an outer cap portion extending beyond said club end and an axially extending inner portion, said inner portion extending from said cap portion into contact with said rigid foam core forming a bond along an inner face between said inner portion and said core to form a high impact resistant unitary structure.
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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) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |