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US 4,227,578 AGranted
Isolation frame
AssigneeLubbock Manufacturing Company
InventorHenry W. Hurt
Life of this patent
Estimating the term…
Abstract
An isolation frame is connected between a conventional three-point hitch of a tractor and a vibrating plow frame. The vibrating plow frame has a plurality of rippers thereon and is mounted to the isolation frame to vibrate in a horizontal direction normal to the direction of draft. The isolation frame itself can vibrate in a horizontal direction normal to the direction of draft.
Claims4
In a vibrating earth working device to be drafted behind a vehicle having
- a. a plow frame having
- (i) a forward most member and
- (ii) a rear beam,
- b. a plurality of ripper plows on said plow frame,
- c. said plows adapted to be moved in a direction of draft, and
- d. a vibrator on the plow frame,
- e. said vibrator being means for vibrating the plow frame in a horizontal direction normal to the direction of draft;
- f. the improved structure comprising:
- g. a planar isolation frame located in a vertical plane which is normal to the direction of draft,
- h. two draft links interconnecting the plow frame to the isolation frame,
- j. said draft links pivoted about vertical pivots to the isolation frame forward thereof, and
- k. said draft links pivoted about vertical pivots to the plow frame behind the forward most member thereof,
- m. at least one strut extending from the top of the isolation frame to the back of the plow frame,
- n. means attached to the strut for pivoting said strut to the plow frame and to the isolation frame,
- o. three links extending from the isolation frame forward toward the vehicle.
12 more elements
Dependencies are inferred from the claim text.