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The Cretex Companies, Inc. Patents
Assignee:
The Cretex Companies, Inc.
Address:
Elk River, MN
No. of patents:
7
Patents:












Patent Number Title Of Patent Date Issued
7481609 Support structure apparatus and method January 27, 2009
A method of reducing the effective width of cargo, such as a concrete double-tee. The method comprises positioning the arm in a first position in which the arm is substantially horizontal, the arm being pivotally biased toward the first position, lowering the double-tee onto the arm
7326013 Support structure apparatus and method February 5, 2008
A support structure for supporting and tilting an oversized cargo to reduce the effective width of the cargo. The structure comprises a bolster frame having a base and a stanchion connected to the base. The stanchion extends upwardly from a lower end connected to the base to an upper
7204665 Support structure apparatus and method April 17, 2007
A support structure for supporting and tilting an oversized cargo to reduce the effective width of the cargo. The structure comprises a bolster frame having a base and a stanchion connected to the base. The stanchion extends upwardly from a lower end connected to the base to an upper
7144211 Support structure apparatus and method December 5, 2006
A support structure for supporting and tilting an oversized cargo to reduce the effective width of the cargo. The structure comprises a frame having a base and a stanchion connected to the base. A rocker arm is pivotally coupled to the stanchion to pivot about a pivot axis. The arm i
4475845 External manhole chimney seal October 9, 1984
A cylindrical elastomeric seal is disclosed for externally sealing a manhole assembly against surface water infiltration between the manhole casting and the supporting structure and through the supporting structure. The seal has a first sealing section adapted to receive the edge of the
4469467 Manhole chimney seal September 4, 1984
An internal seal is disclosed between a manhole casting and mating manhole components such as concrete adjusting rings, the concrete manhole cone, or masonry structure of a similar configuration, to prevent water infiltration at this interface. The seal is formed by a continuous elas
4360041 Cleanout fitting November 23, 1982
A cleanout fitting for use in the construction industry in conjunction with a lateral sewer line to bring the sewer line up to floor level at various locations to facilitate cleaning of the same. The fitting includes a pipe section with internal threads, a plug member with external threa

 
 
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