Patent US4349211A successfully refreshed from Google Patents.
US4349211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bumper hitch
Assignee: Individual
•
Filing: 1979-01-22
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Granted: 1982-09-14
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Expires: 1999-01-22
Abstract
Abstract A trailer hitch comprises two elongate bumper members, a trailer bumper member connectable to the trailer near one end thereof and a tractor bumper member connectable to the tractor near one end thereof so that the trailer bumper member contacts the tractor bumper member when the trailer is connected to the tractor. A male hitch member is connected to the trailer bumper member and extends outwardly therefrom. A recess in the tractor bumper member receives the male hitch member. A latch connected to the tractor bumper member releasably secures the male hitch member. The trailer hitch is particularly adapted for connecting a forage harvester to the front of a truck.
Inventors
- 👤 George N. Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:22
CPC Classifications
B; B60; B60D; B60D1/00; F; F16; F16B; F16B2200/00; F16B2200/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
142 words
A trailer hitch for connecting a trailer to a tractor comprising: two elongate bumper members, a trailer bumper member connectable to the trailer near one end thereof and a tractor bumper member connectable to the tractor near one end thereof so the trailer bumper member contacts the tractor bumper member when the trailer is connected to the tractor; a male hitch member pivotally connected to a first said bumper member and extending outwardly therefrom; a recess in a second said bumper member for receiving the male hitch member; each bumper member having two ends, the male hitch member and the recess being midway between the ends of the bumper members; latch means connected to the second bumper member for releasably securing the male hitch member, and fluid cylinders operatively connected to the latch means for securing or releasing the male hitch member.
Claim 2
Dependent Claim
142 words
A trailer hitch for connecting a trailer to a tractor comprising: two elongate bumper members, a trailer bumper member connectable to the trailer near one end thereof and a tractor bumper member connectable to the tractor near one end thereof so the trailer bumper member contacts the tractor bumper member when the trailer is connected to the tractor; a male hitch member pivotally connected to a first said bumper member and extending outwardly therefrom; a recess in a second said bumper member for receiving the male hitch member; each bumper member having two ends, the male hitch member and the recess being midway between the ends of the bumper members; latch means connected to the second bumper member for releasably securing the male hitch member, and fluid cylinders operatively connected to the latch means for securing or releasing the male hitch member.
Claim 3
Dependent Claim
25 words
A trailer hitch as claimed in claim 1, the male hitch member comprising an elongate bar with a pointed end distal the first bumper member.
Claim 4
Dependent Claim
38 words
A trailer hitch as claimed in claim 2, the latch means comprising at least one latch hingedly connected to the second bumper member for engaging the male hitch member between the pointed end and the first bumper member.
Claim 5
Dependent Claim
33 words
A trailer hitch as claimed in claim 3, the male hitch member having an enlarged portion adjacent the pointed end, the latch being engageable between the enlarged portion and the first bumper member.
Claim 6
Dependent Claim
15 words
A trailer hitch as claimed in claim 4, the male hitch member being generally arrow-shaped.
Claim 7
Dependent Claim
53 words
A trailer hitch as claimed in claim 5, comprising two said latches, each latch comprising an elongate bar hingedly connected to the second bumper member to each side of the recess and extending away from the first bumper member and towards the male hitch member when the tractor is connected to the trailer.
Claim 8
Dependent Claim
39 words
A trailer hitch as claimed in claim 6, comprising two said fluid cylinders, each fluid cylinder being pivotally connected to one said latch, each fluid cylinder being connected to the second bumper member and extending away from the recess.
Claim 9
Dependent Claim
46 words
A trailer hitch as claimed in claim 1, comprising a pair of spaced-apart hinge members for hingedly connecting each said bumper member to the tractor or the trailer, the hinge members each comprising a coil spring connecting said each bumper member to the trailer or tractor.
Claim 10
Dependent Claim
37 words
A trailer hitch as claimed in claim 1, the male hitch member having a generally spherical end proximal the first bumper member, the first bumper member having a generally spherical socket for rotatably receiving the spherical end.
Claim 11
Dependent Claim
40 words
A trailer hitch as claimed in claim 9, the spherical end of the male hitch member comprising a shallow depression, the first hitch member having a resiliently biased member for engaging with the depression to align the male hitch member.
Claim 12
Dependent Claim
38 words
A trailer hitch as claimed in claim 10 comprising four said shallow depressions and four resiliently biased balls comprising said biased member, corresponding balls and depressions being above, below and to each side of the male hitch member.
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) | 1985-09-13 | 1986-03-15 | 1986-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-13 | 1990-03-15 | 1990-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-13 | 1994-03-15 | 1994-09-14 | $7700.00 | Window Closed / Lapsed |