US3861682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Baseball bat
Assignee: Individual
•
Filing: 1972-10-05
•
Granted: 1975-01-21
•
Expires: 1992-10-05
Abstract
Abstract A metallic ball bat comprising a bat body made of a metallic tube material wherein a metallic sound arresting ring made of a rubber or plastic material is disposed inside the bat and advantageously in contact with a light-weight, hard, plastic cap which is inseparably inserted on the head of bat body. Said bat body may also include a metallic repellent member disposed therein. In such as case a sound arresting member is provided on both sides of said repellant member. This arrangement increases the repellency of the bat portion for hitting a ball, and arrests the metallic sound and resound which otherwise would be created at the time of impact between the bat and ball.
Inventors
- 👤 Hirokazu Fujii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:02
CPC Classifications
A; A63; A63B; A63B59/00; A63B59/50; A63B59/51; A63B59/59; A63B60/00; A63B60/54; A63B2102/00; A63B2102/18
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
99 words
A substantially hollow metallic ball bat comprising a generally cylindrical barrel portion and a generally cylindrical handle portion, said barrel portion being larger in diameter than said handle portion said barrel portion terminating in an open end, a cap element inseparably mounted on and extending into said open end two, spaced apart metallic-sound arresting ring members centrally disposed in the barrel portion of the ball bat and a metallic cylindrical repelling member disposed between said sound arresting ring members, said repelling member being contiguous with said ring members and the inner periphery of the barrel portion of the bat.
Claim 2
Dependent Claim
99 words
A substantially hollow metallic ball bat comprising a generally cylindrical barrel portion and a generally cylindrical handle portion, said barrel portion being larger in diameter than said handle portion said barrel portion terminating in an open end, a cap element inseparably mounted on and extending into said open end two, spaced apart metallic-sound arresting ring members centrally disposed in the barrel portion of the ball bat and a metallic cylindrical repelling member disposed between said sound arresting ring members, said repelling member being contiguous with said ring members and the inner periphery of the barrel portion of the bat.
Claim 3
Dependent Claim
23 words
The ball bat of claim 1, wherein the metallic-sound arresting ring member is rigidly fixed to the inner periphery of the barrel portion.
Claim 4
Dependent Claim
18 words
The ball bat of claim 2, wherein one of said ring members is contiguous with the cap element.
Claim 5
Dependent Claim
18 words
The ball bat of claim 1, wherein the metallic-sound arresting ring member is made of a plastic material.
Claim 6
Dependent Claim
16 words
The ball bat of claim 1, wherein the metallic-sound arresting ring member is made of rubber.
Claim 7
Dependent Claim
22 words
The ball bat of claim 1, wherein the metallic-sound arresting ring member is an axially short cylinder having a substantial wall thickness.
Claim 8
Dependent Claim
28 words
The ball bat of claim 6, wherein the axially short cylinder is further provided with cross walls which interconnect the cylinder walls like the spokes of a wheel.
Claim 9
Dependent Claim
23 words
The ball bat of claim 6, wherein the axially short cylinder is further provided with a base which extends across the barrel portion.
Claim 10
Dependent Claim
71 words
The ball bat of claim 1, wherein the upper edge of said open end has radially inwardly extending walls and said cap element is provided with an annular inwardly extending groove, said groove receiving said walls to form a wedgewise interlocking relationship between the bat and the cap element, the outer diameter of said cap element being substantially the same as the outer diameter of said barrel portion of the bat.
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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) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |