Patent US4019753A successfully refreshed from Google Patents.
US4019753A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable three-point tractor hitch
Assignee: Individual
•
Filing: 1975-11-13
•
Granted: 1977-04-26
•
Expires: 1995-11-13
Abstract
Abstract A tractor implement attaching hitch mechanism of the three-point type that utilizes a hydraulic actuator for readily adjusting the attaching mechanism out of a vertical plane, whereby the remotely controlled latches may be activated for attaching the implement to the tractor. The hitch mechanism comprises a frame including a pair of depending legs interconnected by a horizontal support member. The support member and one of the legs include brackets which are connected to two draft links of the tractor, and the other leg is connected to the other draft link by a link member which is pivotally connected to the leg and the draft link. The hydraulic actuator is carried by the support member and connected to the link member for pivoting the link member so as to vertically move the leg to vary the plane of the hitch mechanism relative to the tractor.
Inventors
- 👤 Frederick J. Kestel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:45
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/14; B60D1/141; A; A01; A01B; A01B59/00; A01B59/06; A01B59/061; A01B59/062; B60D1/01; B60D1/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
168 words
An adjustable quick-latch hitch for tractors providing three-point draft link connections comprising a. a hitch attachment comprising a rigid frame including a pair of depending legs interconnected by a substantially horizontal support member, b. said support member and one of said legs providing connecting brackets adapted to be connected to corresponding draft links of the tractor for connecting said attachment thereto, c. a link member pivotally connected at one end to said other of said legs and at its opposite end to a draft link of the tractor, d. pivoting means carried by said support member and connected to said link member for pivoting the same relative to its connection to said other of said legs and to the draft link of the tractor so as to vertically move said other of said legs to vary the plane of said hitch attachment relative to the tractor, and e. means provided by each of said legs for releasably connecting said hitch attachment to an implement to be pulled thereby.
Claim 2
Dependent Claim
168 words
An adjustable quick-latch hitch for tractors providing three-point draft link connections comprising a. a hitch attachment comprising a rigid frame including a pair of depending legs interconnected by a substantially horizontal support member, b. said support member and one of said legs providing connecting brackets adapted to be connected to corresponding draft links of the tractor for connecting said attachment thereto, c. a link member pivotally connected at one end to said other of said legs and at its opposite end to a draft link of the tractor, d. pivoting means carried by said support member and connected to said link member for pivoting the same relative to its connection to said other of said legs and to the draft link of the tractor so as to vertically move said other of said legs to vary the plane of said hitch attachment relative to the tractor, and e. means provided by each of said legs for releasably connecting said hitch attachment to an implement to be pulled thereby.
Claim 3
Dependent Claim
43 words
In an adjustable three-point quick-latch tractor hitch as defined by claim 1, wherein said pivoting means comprises a hydraulic cylinder having a slidable piston, one end of which is pivotally connected to said link member, with said cylinder being adapted for remote operation.
Claim 4
Dependent Claim
52 words
In an adjustable three-point quick-latch tractor hitch as defined by claim 1, wherein said means for releasably connecting said hitch attachment to an implement comprises a pair of slidable latch fingers contained within each of said legs and providing at one end a catch for latching an implement to the hitch attachment.
Claim 5
Dependent Claim
43 words
In an adjustable three-point quick-latch tractor hitch as defined by claim 3, wherein said pivoting means comprises a hydraulic cylinder having a slidable piston, one end of which is pivotally connected to said link member, with said cylinder being adapted for remote operation.
Claim 6
Dependent Claim
47 words
In an adjustable three-point quick-latch tractor hitch as defined by claim 3, wherein said slidable latch fingers are provided at their opposite ends with actuating levers adapted to be remotely operated for slidably moving said latch fingers relative to said legs into and out of latching position.
Claim 7
Dependent Claim
24 words
In an adjustable three-point quick-latch tractor hitch as defined by claim 1, the further provision of means for remotely operating said releasable connecting means.
References Cited (Backward Citations)
CA668072A
Cited
US3116075A
Cited
US3090639A
Cited
US3531140A
Cited
US3528685A
Cited
US3572759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-25 | 1980-10-25 | 1981-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-25 | 1984-10-25 | 1985-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-25 | 1988-10-25 | 1989-04-26 | $7700.00 | Window Closed / Lapsed |