US3572760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick-coupler
Assignee: Deere and Co
•
Filing: 1969-02-24
•
Granted: 1971-03-30
•
Expires: 1989-02-24
Abstract
Abstract A quick-coupler having a pair of spaced upwardly open lower hooks and a centered upper hook for receiving the hitch pins of an implement. The upper hook is pivotally mounted for movement between a first position in which it is rearwardly open and a second position in which it is downwardly open. A latch lever is mounted adjacent the upper hook for movement in a path perpendicular to the path of movement of the upper hook between an open position and a locking position in which it extends across the path of movement of the upper hook to lock the upper hook in the second position.
Inventors
- 👤 Jess Jerome Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:41
CPC Classifications
A; A01; A01B; A01B59/00; A01B59/06; A01B59/061; A01B59/062
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
164 words
A quick-coupler device for connecting an implement having a pair of spaced lower hitch pins and a centered upper hitch pin to a tractor having a three-point hitch, said coupler device comprising a frame member having a generally transversely extending bight and a pair of depending legs; upwardly open hook members on the lower ends of the legs adapted to receive the lower hitch pins; hook means adapted to receive the upper hitch pin pivotally mounted on the bight for movement in a plane between a first position in which it is downwardly open; and latching means pivotally mounted on the bight for movement in a plane perpendicular to an intersecting the plane of movement of the hook means between an inoperative position out of the plane of movement of the hook means and an operative position in which it extends across the plane of movement of the hook means to abut against and prevent movement of the hook means to the first position.
Claim 2
Dependent Claim
164 words
A quick-coupler device for connecting an implement having a pair of spaced lower hitch pins and a centered upper hitch pin to a tractor having a three-point hitch, said coupler device comprising a frame member having a generally transversely extending bight and a pair of depending legs; upwardly open hook members on the lower ends of the legs adapted to receive the lower hitch pins; hook means adapted to receive the upper hitch pin pivotally mounted on the bight for movement in a plane between a first position in which it is downwardly open; and latching means pivotally mounted on the bight for movement in a plane perpendicular to an intersecting the plane of movement of the hook means between an inoperative position out of the plane of movement of the hook means and an operative position in which it extends across the plane of movement of the hook means to abut against and prevent movement of the hook means to the first position.
Claim 3
Dependent Claim
36 words
The coupler device set forth in claim 1 further including abutment means mounted on the bight to engage the upper pin means when the upper pin means is positioned to be received by the hook means.
Claim 4
Dependent Claim
99 words
The coupler device set forth in claim 1 wherein the hook means is pivotally carried by a pin mounted intermediate the ends of and extending between a pair of transversely spaced upstanding ears fixedly secured to the bight, each of the ears is provided with an upwardly open slot at the upper end thereof, the hook means is provided with an open ended slot which moves into registry with the slots provided in the ears when the hook means is moved to the second position, and the latching means extends through all the slots when in the operative position.
Claim 5
Dependent Claim
126 words
A quick-coupler comprising: a generally inverted U-shaped frame having a transversely extending bight and a pair of depending legs; rearwardly extending and upwardly open hook members on the lower ends of the legs; hook means pivotally mounted on the bight for movement between a first position in which it is upwardly extending and rearwardly opeN and a second position in which it is rearwardly extending and downwardly open; and lever means pivotally mounted on the bight for movement in a path perpendicular to the path of movement of the hook means between an inoperative position and an operative position in which it extends across the path of movement of the hook means to abut against and prevent displacement of the hook means from the second position.
Claim 6
Dependent Claim
126 words
A quick-coupler comprising: a generally inverted U-shaped frame having a transversely extending bight and a pair of depending legs; rearwardly extending and upwardly open hook members on the lower ends of the legs; hook means pivotally mounted on the bight for movement between a first position in which it is upwardly extending and rearwardly opeN and a second position in which it is rearwardly extending and downwardly open; and lever means pivotally mounted on the bight for movement in a path perpendicular to the path of movement of the hook means between an inoperative position and an operative position in which it extends across the path of movement of the hook means to abut against and prevent displacement of the hook means from the second position.
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) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |