Title: Apparatus for cutting concrete columns

Abstract: Apparatus for cutting a concrete column by engaging the column between superimposed anvil and shear elements. The elements define a shear plane therebetween and the anvil element is conformed to embrace the column over an area of sufficient breadth to confine the portion of the column to the anvil side of the shear line against substantial fracturing. The elements are secured together for movement into and out of engagement with the column and an hydraulic cylinder is coupled between the elements to force the shear element against the column with sufficient pressure to fracture and crush the column.

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Inventors: Schellhorn, Verne L. (Concord, CA, US)

Application Number: 905354
Filing Date: 1978-05-12
Publication_date: 1980-04-15
Assignee: Aerial Industrial Inc. (Concord, CA)
Primary Class(es): 125/23.01 83/694
Other Classes:
US Patent Ref:

82886	Oct, 1868	Tucker	83/198.
1366693	Jan, 1921	Kemble	225/102.
3056267	Oct, 1962	McRee	30/241.
3496813	Feb, 1970	Valente	83/694.
3727599	Apr, 1973	Sugiki	125/23.
3978842	Sep, 1976	Coffman	125/23.
4044749	Aug, 1977	Bowen	125/23.
4124015	Nov, 1978	Isaksson	125/23.

Other Refs:
Primary Examiner: Whitehead, Harold D.
Assistant Examiner:
Attorney: Johnsonbaugh; Bruce H.