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Class Information
Number: 405/238
Name: Hydraulic and earth engineering > Foundation > Columnar structure (e.g., pier, pile) > Process or apparatus for installing > Casting in situ hardenable fluent material > Forming subsurface enlargement > Preformed enlargement cavity
Description: Method or apparatus including a step or means for forming an enlarged portion in an excavation prior to introducing a charge of flowable hardenable material therein to form the enlargement.

Patents under this class:

Patent Number Title Of Patent Date Issued
7097388 Grout injecting/structure anchoring system Aug. 29, 2006
6971821 Grout injecting/structure anchoring system Dec. 6, 2005
6821056 Grout injecting/structure anchoring system Nov. 23, 2004
6354768 Soil reinforcement method and apparatus Mar. 12, 2002
6354766 Methods for forming a short aggregate pier and a product formed from said methods Mar. 12, 2002
4701078 Pile construction method for improving bearing power Oct. 20, 1987
4621948 Tunnel lining form Nov. 11, 1986
4431341 Construction of a concrete lined chamber Feb. 14, 1984
4411557 Method of making a high-capacity earthbound structural reference Oct. 25, 1983
4147457 Method and an apparatus for driving sheet piles into the ground Apr. 3, 1979
4116012 Method of obtaining sufficient supporting force for a concrete pile sunk into a hole Sep. 26, 1978
4060994 Process for providing a foundation pile for alternating compressive and tractive stresses and a pile thus provided Dec. 6, 1977
3938344 Earth auger and method for driving piles and the like by means of said earth auger Feb. 17, 1976

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