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(12) United States Patent ao) Patent No.: us 6,551,050 Bi

Kallevig et al. (45) Date of Patent: Apr. 22,2003

(54) ROLLING STABILIZER LIFT ATTACHMENT

(75) Inventors: Bruce E. Kallevig, Monticello, MN (US); Brian Nelson, Spicer, MN (US)

(73) Assignee: Kaltec of Minnesota, Monticello, MN (US)

( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days.

(21) Appl. No.: 09/602,979

(22) Filed: Jun. 23, 2000

Related U.S. Application Data

(60) Provisional application No. 60/141,074, filed on Jun. 25, 1999.

(51) Int. C I. B66F 9/22

(52) U.S. CI 414/607; 180/209; 187/232

(58) Field of Search 414/607, 673,

414/458, 460, 722, 628, 634; 212/304, 305; 180/24.02, 209; 187/222, 231, 232,

237, 238

(56) References Cited

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FOREIGN PATENT DOCUMENTS

WO WO 99/50170 10/1999

* cited by examiner

Primary Examiner—Eileen D. Lillis
Assistant Examiner—Paul T. Chin

(74) Attorney, Agent, or Firm—Patterson, Thuente, Skaar & Christensen, PA.

(57) ABSTRACT

An attachment for skid steer loaders and the like which combines a forklift mast with width adjustable rolling stabilizer outriggers. The ground engaging rolling stabilizer caster wheels are positioned to each side of the lifted load. The castering wheels bear a large fraction of the weight of the lifted load as well as stabilizing the load while it is in motion over varying terrain. The rolling stabilizer lift dramatically increases the weight lifting capacity and the height to which loads can be lifted beyond that of the loader alone.

20 Claims, 8 Drawing Sheets

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