Patent US3837646A successfully refreshed from Google Patents.
US3837646A
Expired / Lapsed
US
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Pitching rubber
Assignee: True Pitch Inc
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Filing: 1973-01-12
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Granted: 1974-09-24
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Expires: 1993-01-12
Abstract
Abstract A pitching rubber for a portable pitching mound having a depression or toe hole formed in the upper surface thereof. The pitching rubber comprises a vertically adjustable rear rubber portion constructed of conventional slightly resilient material and a front rubber portion constructed of sponge or foam rubber material. The front rubber portion is positioned adjacent the forward vertical face of the back rubber portion to shield the same from a hit baseball. The two rubber portions fill the depression and have their upper surfaces normally coplanar with the upper surface of the mount. The front rubber portion is impervious to water to prevent the toe hole from filling with water.
Inventors
- 👤 J Goeders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:15
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/0002; A63B69/0013; A63C; A63C19/00; A63C19/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
106 words
A portable pitching mound comprising, a pitcher''s mound body member of molded Fiberglas plastic material in the form of a convex shaped shell, the upper portion of said body member provided with a substantially flat area generally circular in shape and of sufficient area to allow a pitcher to comfortably maneuver thereon, said upper portion having a depression formed therein, a pitching plate positioned in and filling said depression and having a vertical forward face, and a resilient member positioned in said depression adjacent the forward face of said plate, and in abutting relationship thereto, to shield the same from a baseball which has been hit.
Claim 2
Dependent Claim
106 words
A portable pitching mound comprising, a pitcher''s mound body member of molded Fiberglas plastic material in the form of a convex shaped shell, the upper portion of said body member provided with a substantially flat area generally circular in shape and of sufficient area to allow a pitcher to comfortably maneuver thereon, said upper portion having a depression formed therein, a pitching plate positioned in and filling said depression and having a vertical forward face, and a resilient member positioned in said depression adjacent the forward face of said plate, and in abutting relationship thereto, to shield the same from a baseball which has been hit.
Claim 3
Dependent Claim
31 words
The mound of claim 1 wherein said plate is also comprised of a resilient material, said resilient member being comprised of a material which is substantially more resilient than said plate.
Claim 4
Dependent Claim
25 words
The mound of claim 1 wherein said depression is substantially rectangular in shape, said plate and resilient member cooperating to substantially fill said rectangular depression.
Claim 5
Dependent Claim
21 words
The mound of claim 3 wherein said resilient member is impervious to water to prevent said depression from filling with water.
Claim 6
Dependent Claim
15 words
The mound of claim 3 wherein said resilient member is glued to said body member.
Claim 7
Dependent Claim
16 words
The mound of claim 3 wherein said plate is selectively vertically adjustably mounted in said depression.
Claim 8
Dependent Claim
24 words
The mound of claim 3 wherein said plate and resilient member have upper surfaces substantially coplanar with the upper surface of said body member.
Claim 9
Dependent Claim
95 words
The portable pitching mound of claim 1 wherein said body member has a bottom wall portion beneath said depression, a plurality of bolts extending upwardly through said bottom wall and being threadably received by said pitcher''s rubber, said bolts having their heads positioned beneath said bottom wall, and at least one shim member normally on each of said bolts between the head portion thereof and said bottom wall, said shim members being removable from said bolts to permit their installation between said bottom wall and the bottom of said rubber to selectiVely raise said rubber.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |