Patent US4878541A successfully refreshed from Google Patents.
US4878541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Horseshoe, especially for trotting horses
Assignee: Individual
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Filing: 1987-07-27
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Granted: 1989-11-07
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Expires: 2007-07-27
Abstract
Abstract A horseshoe for hooves of four legs of a trotting horse includes a thin plate member of a resiliently bendable plastic having two thickened areas, namely, an outer arched area along a front half of the shoe and a rear triangular area, with the two areas being connected through partial areas of the thin plate member. The arched area is provided with only partially through-going transverse grooves which provide for a good set off and leave longitudinal ribs which stiffen the shoe in a longitudinal direction. The triangular area which covers a hoof frog effects a blood-pumping relative movement and the collateral cartridge areas of the hoof will be covered by the thin plate material which will not exert any high permanent pressure against these areas. The shoe is shaped smooth so that it can not be braked at the impact.
Inventors
- 👤 Palle Pedersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:58
CPC Classifications
A; A01; A01L; A01L1/00; A01L1/02; A01L5/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
178 words
A horseshoe, primary for four legs of trotting horses, and consisting of a wear-resistant plate element of resiliently bendable plastic, the underside of which is provided with downwardly projecting portions, characterized in that the horseshoe includes a thin plate element for covering an entire hoof surface and is provided with two mutually separated thickened areas including a first, arched area extending along an outer rim portion of a front half of the thin plate element and being provided with transverse grooves which extend over only a part of the thickened arched area so as to leave an unbroken rib portion extending in parallel to the outer rim portion of the thin plate element, as well as a number of transverse rib portions, and a second, primarily triangular area extending rearwardly with an increasing width from a front end area situated in front of a transverse middle line of the horseshoe, such that the triangular area is connected with a rear end of the first arched area through a connection area of a material of the thin plate element.
Claim 2
Dependent Claim
178 words
A horseshoe, primary for four legs of trotting horses, and consisting of a wear-resistant plate element of resiliently bendable plastic, the underside of which is provided with downwardly projecting portions, characterized in that the horseshoe includes a thin plate element for covering an entire hoof surface and is provided with two mutually separated thickened areas including a first, arched area extending along an outer rim portion of a front half of the thin plate element and being provided with transverse grooves which extend over only a part of the thickened arched area so as to leave an unbroken rib portion extending in parallel to the outer rim portion of the thin plate element, as well as a number of transverse rib portions, and a second, primarily triangular area extending rearwardly with an increasing width from a front end area situated in front of a transverse middle line of the horseshoe, such that the triangular area is connected with a rear end of the first arched area through a connection area of a material of the thin plate element.
Claim 3
Dependent Claim
73 words
A horseshoe according to claim 1, in which the thin plate element has a thickness of 2-5 mm and, preferably, consists of one of a polyurethane and a similar plastic material, extends between the rear end of the arched thickened area and the side edges of the triangular area in such a manner that the interadjacent plate areas which cover collateral cartilage areas of the hoof are constituted by resiliently yieldable plate areas.
Claim 4
Dependent Claim
29 words
A horseshoe according to claim 1, in which the grooves between the said rib portion are sufficiently deep and wide for receiving a head portion of a usual stud.
Claim 5
Dependent Claim
24 words
A horseshoe according to claim 1, in which the thin plate element projects somewhat rearwardly from the rear end of the thickened triangular area.
Claim 6
Dependent Claim
24 words
A horseshoe according to claim 1, in which the rear end portion of the triangular area is provided with longitudinal rearwardly open guiding grooves.
Claim 7
Dependent Claim
25 words
A horseshoe according to claim 1, in which the side edge surfaces of the triangular area are pronouncedly inclined in an outwards and upwards direction.
Claim 8
Dependent Claim
20 words
A horseshoe according to claim 6, in which the rear edge surface of the triangular area is correspondingly pronouncedly inclined.
Claim 9
Dependent Claim
29 words
A horseshoe according to claim 6, in which the triangular area is of an increased thickness at its foremost area and therefrom inclines continuously upwards towards the rear end.
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) | 1992-11-06 | 1993-05-08 | 1993-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-06 | 1997-05-08 | 1997-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-06 | 2001-05-08 | 2001-11-07 | $7700.00 | Window Closed / Lapsed |