RONALD MICHAEL FEDRICK
Pilots at Fedrick Rnch Rd, Petaluma, CA

7390144, Jun 24, 2008

Feb 2, 2006

11/345802

Ronald M. Fedrick - Petaluma CA, US

Nova Group Inc. - Napa CA

E02D 5/30, E02D 5/50

405233, 405240, 405249, 405257

A method for installing a pre-cast/pre-stressed concrete and steel pile used in the construction of pile foundations and the resulting installed pile that has its distal end anchored to bedrock is disclosed. After the pile is located on bedrock, a first hole is drilled into bedrock that is of sufficient depth to accommodate a lower portion of the steel pipe that extends below the concrete pile and contains a plurality of orifices. A second hole is drilled into bedrock that is below and concentric to the first hole and has a diameter than that is usually less than that of the first hole. The second hole forms an anchoring socket to accommodate an anchoring anchor. Grout is injected into the steel pile and anchoring socket until the grout fills the voids in the interior of the steel pipe. Grout also seeps through the orifices in the lower end of said steel pipe and fills the second hole, and an annular space between the outer circumference of the steel pipe and the walls of the first hole.

4522532, Jun 11, 1985

Jul 25, 1983

6/516741

Ronald M. Fedrick - Petaluma CA

E02D 1904

405 11

A bottom-seated portable cofferdam is disclosed along with a method of using the cofferdam for providing working access to underwater surfaces which are generally horizontal. The cofferdam includes a housing having a bottom opening with a skirt extending about its periphery, first and second seal means being secured to the skirt in spaced-apart relation to form a differential pressure chamber open along its bottom. In use, the cofferdam is first positioned adjacent the underwater surfaces, water then being evacuated from the chamber in order to develop a differential pressure therein for urging the cofferdam into engagement with the underwater surfaces. For applications where the underwater surfaces include vertical surface portions, the first and second seals are configured to generally mate with the vertical surface portions as well as the generally horizontal surfaces, evacuation of the differential pressure chamber serving to urge the cofferdam into engagement with the vertical surface portions as well as the generally horizontal surfaces.

4700751, Oct 20, 1987

Jul 29, 1986

6/891546

Ronald M. Fedrick - Petaluma CA

F16L 914

138149

An insulated pipe apparatus comprises an inner conduit for carrying fluids, an insulated material surrounding the conduit which extends along substantially the entire length of the inner conduit, a sheet of corrugated material surrounding the insulating material so as to provide a plurality of substantially constant cross-section elongated voids along the length of the insulation, a rigid outer casing surrounding the corrugated sheet, and an end seal covering the end cross-section of the pipe apparatus except for the inner conduit and providing a means to interconnect the elongated voids and to connect them with external equipment. Slots cut into an insulating material may be substituted for the corrugated sheet to provide a plurality of substantially constant cross-section elongated voids. A gel coat may be added to the exterior surface of the outer casing to provide further protection from the environment for the pipe apparatus.