US4565250A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Horse shoe pad
Assignee: SORBO Inc A CORP OF OH
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Filing: 1983-08-03
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Granted: 1986-01-21
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Expires: 2003-08-03
Abstract
Abstract A horse shoe pad is formed of a shock absorbing layer and a stabilizing fabric layer. The shock absorbing layer may be made of a dense non-cellular polyurethane of essentially linear structure containing unsatisfied hydroxyl groups, having a compression set of less than 15%, and preferably less than 5%, an elongation at break of at least 500%, a recovery after compression which is delayed by about 0.7 seconds, and a hardness on the Shore 00 scale of approximately 70. The fabric reinforcing layer may be a woven nylon fabric. In addition to these two layers, some embodiments include an additional layer of stabilizing fabric on the opposite side of the shock absorbing layer and/or layers of polyester urethane forming base and/or top layers. The pad may be used both between a plastic or a conventional metal horse shoe and the hoof, or the pad may be shaped to fit free-floatingly within the interior hoof wall and held in place only by an underlying sheet of material which is in turn secured in place by a conventional horse shoe.
Inventors
- 👤 Kent A. Vasko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:28
CPC Classifications
A; A01; A01L; A01L7/00; A01L7/02
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
69 words
A horse shoe pad comprising a shock absorbing layer of flexible polyurethane of essentially linear structure containing unsatisfied hydroxyl groups, having a compression set of less than 15%, and a recovery which is delayed after compression by at least 0.7 second, and stabilizing means for stabilizing a surface of said shock absorbing layer, said stabilizing means including a fabric layer bonded to one side of said shock absorbing layer.
Claim 2
Dependent Claim
69 words
A horse shoe pad comprising a shock absorbing layer of flexible polyurethane of essentially linear structure containing unsatisfied hydroxyl groups, having a compression set of less than 15%, and a recovery which is delayed after compression by at least 0.7 second, and stabilizing means for stabilizing a surface of said shock absorbing layer, said stabilizing means including a fabric layer bonded to one side of said shock absorbing layer.
Claim 3
Dependent Claim
13 words
The horse shoe pad of claim 1 wherein said fabric layer is nylon.
Claim 4
Dependent Claim
38 words
The horse shoe pad of claim 2 further including a base layer bonded to the opposite side of said shock absorbing layer, said base layer including a polyurethane having a durometer of approximately 60 on the D scale.
Claim 5
Dependent Claim
26 words
The horse shoe pad of claim 3 wherein said stabilizing means includes a second fabric layer bonded between said shock absorbing layer and said base layer.
Claim 6
Dependent Claim
24 words
The horse shoe pad of claim 1 wherein said stabilizing means includes nylon fabric layers bonded to both sides of said shock absorbing layer.
Claim 7
Dependent Claim
17 words
The horse shoe pad of claim 1 wherein said shock absorbing layer includes a raised central portion.
Claim 8
Dependent Claim
14 words
The horse shoe pad of claim 6 wherein said shock absorbing layer is pyramidal.
Claim 9
Dependent Claim
16 words
The horse shoe pad of claim 1 wherein said shock absorbing layer has a central depression.
Claim 10
Dependent Claim
13 words
The horse shoe pad of claim 8 wherein said central depression is pyramidal.
Claim 11
Dependent Claim
16 words
The horse shoe pad of claim 1 wherein said shock absorbing layer has a wedge shape.
Claim 12
Dependent Claim
38 words
The horse shoe pad of claim 1 wherein said shock absorbing layer is essentially planar and has a marginal portion securable and operable between the horse shoe and the horny part of the animal's hoof to absorb shocks.
Claim 13
Independent Claim
61 words
A method of treating a shod animal comprising the step of free floating a resilient pad of non-porous shock absorbing material within the hoof wall of a hoof of the animal between the frog of the hoof and a sheet of material secured to the hoof and extending from the outer perimeter of the hoof to the back of the heel.
Claim 14
Independent Claim
61 words
A method of treating a shod animal comprising the step of free floating a resilient pad of non-porous shock absorbing material within the hoof wall of a hoof of the animal between the frog of the hoof and a sheet of material secured to the hoof and extending from the outer perimeter of the hoof to the back of the heel.
Claim 15
Dependent Claim
35 words
The method of claim 12 wherein said step of freefloating a resilient pad includes the usage of a resilient pad trimmed to leave a continuous gap between the pad perimeter and the interior hoof wall.
Claim 16
Dependent Claim
23 words
The method of claim 12 wherein the step of freefloating a pad includes the usage of a pad with a raised central portion.
Claim 17
Dependent Claim
22 words
The method of claim 12 wherein the step of freefloating a pad includes the usage of a pad with a central depression.
Claim 18
Dependent Claim
22 words
The method of claim 12 wherein the step of freefloating a pad includes the usage of a pad with a wedge shape.
Claim 19
Dependent Claim
35 words
The method of claim 12 wherein the utilized pad is formed of flexible polyurethane having a compression set of less than 15%, and a recovery which is delayed after compression by at least 0.7 second.
Claim 20
Dependent Claim
21 words
The method of claim 17 wherein the utilized pad includes a stabilizing fabric layer bonded to one side of the pad.
Claim 21
Dependent Claim
62 words
The method of claim 12 wherein the utilized sheet of material includes a shock absorbing layer of flexible polyurethane of essentially linear structure containing unsatisfied hydroxyl groups, having a compression set of less than 15%, and a recovery which is delayed after compression by at least 0.7 second, and a stabilizing fabric layer bonded to one side of the shock absorbing layer.
Claim 22
Dependent Claim
128 words
A horse shoe pad comprising a shock absorbing layer of flexible polyurethane of essentially linear structure containing unsatisfied hydroxyl groups, having a compression set of less than 15%, and a recovery which is delayed after compression by at least 0.7 second, stabilizing means for stabilizing a surface of said shock absorbing layer, said stabilizing means including a fabric layer bonded to one side of said shock absorbing layer, an upper layer of polyurethane bonded to an upper surface of said shock absorbing layer, said fabric layer being bonded to a lower surface of said shock absorbing layer, and a base layer bonded to said fabric layer, said base layer and said upper layer being both formed of polyurethane having a hardness of approximately 60 on the D scale.
Claim 23
Dependent Claim
128 words
A horse shoe pad comprising a shock absorbing layer of flexible polyurethane of essentially linear structure containing unsatisfied hydroxyl groups, having a compression set of less than 15%, and a recovery which is delayed after compression by at least 0.7 second, stabilizing means for stabilizing a surface of said shock absorbing layer, said stabilizing means including a fabric layer bonded to one side of said shock absorbing layer, an upper layer of polyurethane bonded to an upper surface of said shock absorbing layer, said fabric layer being bonded to a lower surface of said shock absorbing layer, and a base layer bonded to said fabric layer, said base layer and said upper layer being both formed of polyurethane having a hardness of approximately 60 on the D scale.
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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) | 1989-01-20 | 1989-07-22 | 1990-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-20 | 1993-07-22 | 1994-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-20 | 1997-07-22 | 1998-01-21 | $7700.00 | Window Closed / Lapsed |