Title: Adjustable pad hydraulic lift

Abstract: An adjustable pad hydraulic lift structure has a vehicle engaging and supporting pad vertically movable by a hydraulic piston, the pad being mounted on a bolster and having load transfer blocks facing downwardly for engagement with the bolster to transfer vehicle load from the pad to the bolster. Supporting and guide rods on the bolster and bearings on the pad cooperate to support the unloaded pad for adjustment into selected position over the bolster, and while supporting the unloaded pad maintaining the pad at an elevation wherein the load transfer blocks are supported free of the bolster to permit free adjustments of the pad. The supporting and guide rods are yieldable when the pad is under vehicle load to permit the load transfer blocks to engage the bolster for load transfer from the pad to the bolster.

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Inventors: Jones, Raymond E. (Lexington, KY, US)

Application Number: 808116
Filing Date: 1977-06-20
Publication_date: 1979-01-16
Assignee: Dura Corporation (Southfield, MI)
Primary Class(es): 187/219
Other Classes:
US Patent Ref:

2592845	Apr, 1952	Aron	187/8.
2777538	Jan, 1957	Cochin	187/8.
2899020	Aug, 1959	Halstead	187/8.
3318417	May, 1967	Royce	187/8.
3331470	Jul, 1967	Hott	187/8.
3709330	Jan, 1973	Wells et al.	187/8.

Other Refs:
Primary Examiner: Reeves, Robert B.
Assistant Examiner: Nase, Jeffrey V.
Attorney: Hill, Gross, Simpson, Van Santen, Steadman, Chiara & Simpson