Title: Power angling bulldozer assembly

Abstract: A vehicle is constructed with a bulldozer blade and a pair of articulated push arms which may be folded or unfolded by operation of independently extendible hydraulic jacks to extend or retract the blade relative to the vehicle. The push arms have short and a long component which are pivotally interconnected with the short component being pivotally connected to the vehicle and the long component being pivotally connected to the blade. A mechanical stop prevents movement beyond a fully retracted position. Extendible jacks are also utilized to control the elevation, tilt and pitch of the blade and a stabilizing link is provided to resist lateral movement of the blade relative to the vehicle under load.

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Other info:

Inventors: Meisel, Jr., Thomas C. (Peoria, IL, US)

Application Number: 873043
Filing Date: 1978-01-27
Publication_date: 1980-02-19
Assignee: Caterpillar Tractor Co. (Peoria, IL)
Primary Class(es): 172/822
Other Classes:
US Patent Ref:

2230704	Feb, 1941	Sorensen	172/802.
2485407	Oct, 1949	Peterson	172/803.
2634519	Apr, 1953	Merz	172/805.
2766536	Oct, 1956	Perkins	172/805.
3653451	Apr, 1972	Fryrear	172/804.
3662841	May, 1972	Molby	172/804.
3759110	Sep, 1973	Davis	172/805.
3825074	Jul, 1974	Stedman	172/803.
3901329	Aug, 1975	Eftefield	172/804.

Other Refs:
Primary Examiner: Johnson, Richard J.
Assistant Examiner:
Attorney: Wegner, Stellman, McCord, Wiles & Wood