US3741010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor pulling device
Assignee: Individual
•
Filing: 1971-04-22
•
Granted: 1973-06-26
•
Expires: 1991-04-22
Abstract
Abstract Disclosed herein is a device which is adapted to be pulled by a tractor and which includes a frame supported, at the forward end, by a sled and, at the rearward end, by a set of ground engaging wheels, together with a cart movable along a track on the frame between the forward and rearward ends of the frame. Also disclosed herein is a drive means which is connectable between the cart and a ground engaging wheel for moving the cart along the track in response to travel of the wheel over the ground. In addition, the device disclosed herein includes provision for over-the-road transport and for automatically initiating driving movement of the cart from the rearward end to the forward end in response to the initial movement of the device at the beginning of a tractor pull.
Inventors
- 👤 L Luedtke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:34
CPC Classifications
G; G01; G01L; G01L5/00; G01L5/13; B; B60; B60P; B60P1/00; B60P3/00; B60P3/40; B60P3/41
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
138 words
A device adapted to be pulled by a tractor, said device comprising a frame adapted to be pulled by the tractor, a wheel in engagement with the ground and supporting said frame, a track on said frame, a cart movable along said track, and drive means connectable between said wheel and said cart for moving said cart along said track in response to travel of said wheel over the ground said drive means including a clutch affording selective engagement to connect and disconnect said cart with said wheel and actuating means for engaging said clutch, said actuating means being selectively movable between a storage position and a cocked position and being adapted to be further movable from the cocked position to a position automatically engaging said clutch in response to initial travel of said wheel over the ground.
Claim 2
Independent Claim
138 words
A device adapted to be pulled by a tractor, said device comprising a frame adapted to be pulled by the tractor, a wheel in engagement with the ground and supporting said frame, a track on said frame, a cart movable along said track, and drive means connectable between said wheel and said cart for moving said cart along said track in response to travel of said wheel over the ground said drive means including a clutch affording selective engagement to connect and disconnect said cart with said wheel and actuating means for engaging said clutch, said actuating means being selectively movable between a storage position and a cocked position and being adapted to be further movable from the cocked position to a position automatically engaging said clutch in response to initial travel of said wheel over the ground.
Claim 3
Dependent Claim
37 words
A device in accordance with claim 1 wherein said drive means for moving said cart along said track includes means for adjustably varying the rate of travel of said cart in response to movement of said wheel.
Claim 4
Dependent Claim
22 words
A device in accordance with claim 1 including a sled engaged with the ground and supporting the forward end of said frame.
Claim 5
Dependent Claim
28 words
A device in accordance with claim 3 wherein said forward end of said frame is normally located at a greater distance above the ground than the rearward end.
Claim 6
Dependent Claim
29 words
A device in accordance with claim 3 wherein said frame includes at the forward end thereof means for pivotally connecting said frame to a tractor vehicle for over-the-road transport.
Claim 7
Dependent Claim
43 words
A device in accordance with claim 1 wherein said drive means for movinG said cart is operable to move said cart from the rearward end to the forward end of said frame in response to forward movement of said device over the ground.
Claim 8
Dependent Claim
26 words
A device in accordance with claim 6 further including a winch for moving said cart from the forward end to the rearward end of said frame.
Claim 9
Dependent Claim
18 words
A device in accordance with claim 1 including means for braking travel of said cart on said track.
Claim 10
Dependent Claim
42 words
A device in accordance with claim 1 including generally horizontal means at the front end of said frame for supporting removable weights and means on said cart similar to said means on said forward end of said frame for supporting removable weights.
Claim 11
Independent Claim
146 words
A device adapted to be pulled by a tractor, said device comprising a frame, a wheel in engagement with the ground and supporting said frame, a track on said frame, a cart movable along said track, and drive means connectable between said wheel and said cart for moving said cart along said track in response to travel of said wheel over the ground, said drive means including a clutch affording selective engagement to connect and disconnect said cart with said wheel, said clutch including an arm movable between first and second positions, means connecting said arm to said clutch to effect engagement of said clutch upon complete movement of said arm to said first position, and means operably connectable between said arm and said movable cart for moving said arm from said first position to said second position upon movement of said cart along said track.
Claim 12
Independent Claim
146 words
A device adapted to be pulled by a tractor, said device comprising a frame, a wheel in engagement with the ground and supporting said frame, a track on said frame, a cart movable along said track, and drive means connectable between said wheel and said cart for moving said cart along said track in response to travel of said wheel over the ground, said drive means including a clutch affording selective engagement to connect and disconnect said cart with said wheel, said clutch including an arm movable between first and second positions, means connecting said arm to said clutch to effect engagement of said clutch upon complete movement of said arm to said first position, and means operably connectable between said arm and said movable cart for moving said arm from said first position to said second position upon movement of said cart along said track.
Claim 13
Independent Claim
130 words
A device adapted to be pulled by a tractor, said device comprising a frame adapted to be pulled by the tractor, a wheel in engagement with the ground and supporting the rearward end of said frame, a track on said frame, a cart movable along said track, drive means connectable between said wheel and said cart for moving said cart along said track in response to travel of said wheel over the ground, a first sled engaged with the ground and supporting the forward end of said frame, means on said first sled connectable to a tractor for pulling of said device, a second sled rearwardly of said frame for providing additional resistance to movement, and means directly connecting said first sled to said second sled independently of said frame.
Claim 14
Independent Claim
130 words
A device adapted to be pulled by a tractor, said device comprising a frame adapted to be pulled by the tractor, a wheel in engagement with the ground and supporting the rearward end of said frame, a track on said frame, a cart movable along said track, drive means connectable between said wheel and said cart for moving said cart along said track in response to travel of said wheel over the ground, a first sled engaged with the ground and supporting the forward end of said frame, means on said first sled connectable to a tractor for pulling of said device, a second sled rearwardly of said frame for providing additional resistance to movement, and means directly connecting said first sled to said second sled independently of said frame.
Claim 15
Independent Claim
133 words
A device adapted to be pulled by a tractor, said device comprising a frame adapted to be pulled by the tractor, a wheel in engagement with the ground and supporting the rearward end of said frame, a track on said frame, a cart movable along said track, drive means connectable between said wheel and said cart for moving said cart along said track in response to travel of said wheel over the ground, socket means on the front of said frame on each side thereof, a yoke-shaped member having spaced legs insertable in said socket means, means for connecting said yoke-shaped member to a towing vehicle for pivotal movement of the device relative to the towing vehicle during over-the-road transportation, and means releasably preventing disconnection of said yoke legs from said socket means.
Claim 16
Independent Claim
133 words
A device adapted to be pulled by a tractor, said device comprising a frame adapted to be pulled by the tractor, a wheel in engagement with the ground and supporting the rearward end of said frame, a track on said frame, a cart movable along said track, drive means connectable between said wheel and said cart for moving said cart along said track in response to travel of said wheel over the ground, socket means on the front of said frame on each side thereof, a yoke-shaped member having spaced legs insertable in said socket means, means for connecting said yoke-shaped member to a towing vehicle for pivotal movement of the device relative to the towing vehicle during over-the-road transportation, and means releasably preventing disconnection of said yoke legs from said socket means.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |