The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 30, 1990
Filed:
Aug. 16, 1989
Kenneth J Blum, Kansas City, MO (US);
Berkel & Company Contractors, Inc., Bonner Springs, KS (US);
Abstract
An improved method and apparatus for the formation of casing assisted grout piles at low density overburden construction sites is provided which includes a collar assembly (44) adapted to be secured to the conventional upright support frame (12) forming a part of typical pile-forming equipment. Preferably, the assembly (44) includes a pair of hingedly interconnected arcuate collar sections (46,48) which cooperatively grip the upper protruding end (42) of an embedded metallic casing (40). The sections (46,48) are provided with circumferentially spaced elongated, gripping elements (70) thereon, as well as a piston and cylinder assembly (60) for selective opening and closing movement of the sections (46,48). Use of the casing-gripping assembly (44) prevents substantial movement or uprooting of the embedded casing (40), and permits pile formation at sites such as landfills containing municipal solid wastes.