Patent US5193296A successfully refreshed from Google Patents.
US5193296A
Expired / Lapsed
US
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Snow plow attachment
Assignee: Individual
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Filing: 1991-10-15
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Granted: 1993-03-16
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Expires: 2011-10-15
Abstract
Abstract A novel means of attaching a plow frame to a vehicle frame is described. The attachment means includes ears on both the plow frame and the vehicle frame. The ears are joined together by pins that are inserted through holes in the ears. The ears are shaped in such a way that they can be forced into alignment using the plow's lifting device. when the ears are held in alignment this way the coupling pins can be easily inserted. This greatly eases the coupling of the plow to the vehicle.
Inventors
- 👤 Peter V. Reilley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:00
CPC Classifications
E; E01; E01H; E01H5/00; E01H5/04; E01H5/06; E01H5/065; E01H5/066
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
136 words
A coupling apparatus for removably mating a snow plow with a vehicle comprising: a first ear with a coupling pin hole and having a specific radius from the coupling pin hole to a curved outer portion of the first ear, said first ear being attached to one of the snow plow and the vehicle; a second pair of ears with coupling pin holes, said second pair of ears being attached to the other of the snow plow and vehicle; and a stop and a frame bar attached to both ears of said second pair of ears for receiving said first ear, said stop and said frame bar being positioned at a distance equal to the specific radius from the center of the coupling pin holes, thereby allowing proper alignment of the coupling pin holes during mating.
Claim 2
Dependent Claim
136 words
A coupling apparatus for removably mating a snow plow with a vehicle comprising: a first ear with a coupling pin hole and having a specific radius from the coupling pin hole to a curved outer portion of the first ear, said first ear being attached to one of the snow plow and the vehicle; a second pair of ears with coupling pin holes, said second pair of ears being attached to the other of the snow plow and vehicle; and a stop and a frame bar attached to both ears of said second pair of ears for receiving said first ear, said stop and said frame bar being positioned at a distance equal to the specific radius from the center of the coupling pin holes, thereby allowing proper alignment of the coupling pin holes during mating.
Claim 3
Dependent Claim
29 words
The coupling apparatus of claim 1 further including a coupling pin for insertion through said coupling pin holes to secure the first ear to the second pair of ears.
Claim 4
Dependent Claim
19 words
The coupling apparatus of claim 1 wherein said curved outer portion of the first ear is semicircular in shape.
Claim 5
Dependent Claim
18 words
The coupling apparatus of claim 1 in which said second pair of ears is attached to the vehicle.
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) | 1996-03-15 | 1996-09-14 | 1997-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-03-15 | 2000-09-14 | 2001-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-03-15 | 2004-09-14 | 2005-03-16 | $7700.00 | Window Closed / Lapsed |