Patent US4306718A successfully refreshed from Google Patents.
US4306718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable pitching mound
Assignee: True Pitch Inc
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Filing: 1980-01-28
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Granted: 1981-12-22
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Expires: 2000-01-28
Abstract
Abstract A portable arcuate shell member supported by its peripheral edge. A pitching rubber is mounted centrally thereof. A depression area extends from the pitching area forwardly from the rubber to the forward end of the shell member. A plate member is detachably secured to the depression area. A layer of resilient cushion material is secured to the plate member, and a layer of turf material is secured to the cushion material. A strip of friction material is secured to the peripheral edge of the shell member.
Inventors
- 👤 John J. Goeders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:04
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/0002
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
147 words
A portable pitching mound, comprising, an arcuate shell member having forward and rearward ends, opposite side portions, an upper surface and an opposite generally concave underside, a pitching rubber centrally mounted on the upper surface of said shell member, a depression area formed in said shell member and extending at least from said pitching rubber forwardly and outwardly to the forward end of said shell member, and a panel, including a resilient and frictional cushion material, mounted in said depression to provide frictional footing to a pitcher pitching from said pitching rubber so that the force transmitted by a pitcher's foot to said shell is partially absorbed, said panel having a top surface and substantially filling said depression so that the top surface of said panel blends with the adjacent upper surface of said shell member to present a substantially continuous surface free of vertical wall portions.
Claim 2
Dependent Claim
147 words
A portable pitching mound, comprising, an arcuate shell member having forward and rearward ends, opposite side portions, an upper surface and an opposite generally concave underside, a pitching rubber centrally mounted on the upper surface of said shell member, a depression area formed in said shell member and extending at least from said pitching rubber forwardly and outwardly to the forward end of said shell member, and a panel, including a resilient and frictional cushion material, mounted in said depression to provide frictional footing to a pitcher pitching from said pitching rubber so that the force transmitted by a pitcher's foot to said shell is partially absorbed, said panel having a top surface and substantially filling said depression so that the top surface of said panel blends with the adjacent upper surface of said shell member to present a substantially continuous surface free of vertical wall portions.
Claim 3
Dependent Claim
36 words
The pitching mound of claim 1 wherein said shell has a peripheral supporting edge, and a strip of frictional material secured to said peripheral edge to cause said shell member to frictionally engage a supporting surface.
Claim 4
Dependent Claim
26 words
The pitching mound of claim 1 wherein said panel includes a layer of turf material overlying and being secured to said resilient and frictional cushion material.
Claim 5
Dependent Claim
30 words
The pitching mound of claim 3 wherein said panel further includes a lower supporting plate, said resilient and frictional cushion material overlying and being secured to said lower supporting plate.
Claim 6
Dependent Claim
19 words
The pitching mound of claim 1 further comprising disengageable fastening means for detachably securing said panel in said depression.
References Cited (Backward Citations)
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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) | 1984-12-21 | 1985-06-22 | 1985-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-21 | 1989-06-22 | 1989-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-21 | 1993-06-22 | 1993-12-22 | $7700.00 | Window Closed / Lapsed |