Kevin Howard Davis
Electrician in Ogden, UT

5259901, Nov 9, 1993

May 27, 1992

7/889445

Kevin Davis - Ogden UT
James A. Yorgason - Ogden UT

Thiokol Corporation - Ogden UT

B65H 8100

156154

A method for constructing an inflatable elastomer mandrel for use in fabricating composite articles is provided. The method comprises the steps of preparing a rigid, water soluble mandrel to the desired size and shape with a shaft extending therethrough; applying a mold releasing ply to the water soluble mandrel; applying a first layer of uncured elastomer to cover the water soluble mandrel; curing the first layer of elastomer to form a base layer for a work piece mandrel wherein the work piece mandrel initially comprises the cured layer of elastomer disposed about the water soluble mandrel; applying a second layer of uncured elastomer to cover the work piece mandrel; winding a fiber onto the work piece mandrel; applying a third layer of uncured elastomer to cover the winding of the fiber of the work piece mandrel; winding a second fiber onto the third layer of elastomer of the work piece mandrel; applying a fourth layer of uncured elastomer to cover the winding of the second fiber of the work piece mandrel; curing the layers of elastomer having been applied to the work piece mandrel; and dissolving the water soluble mandrel and removing the shaft from the work piece mandrel. The work piece mandrel may then be connected to tooling, inflated, and its surface machined to the desired contour and texture. A mandrel having a two-piece mandrel/sleeve configuration may be constructed wherein only the sleeve has hoop windings so that the mandrel is more readily collapsible.

5564272, Oct 15, 1996

Jul 29, 1994

8/282990

Mark J. Warner - North Ogden UT
Wayne E. Berndt - North Ogden UT
O. N. Thompson - Logan UT
Scott W. Lauritzen - Hyrum UT
Kevin W. Davis - Ogden UT

Thiokol Corporation - Ogden UT

F02K 900

60223

The present invention is directed to a novel pressure vessel and process for manufacturing the pressure vessel. In one embodiment, the invention includes a case for a rocket motor which includes a cylindrical, metal shell which has been configured with a plurality of slots positioned in axially extending rows. A fiber reinforced plastic layer is attached to the metal shell. Each slot has a length (L) and is separated by adjacent slots in the same row by an axial distance (A) with adjacent rows of slots separated by a circumferential distance (C) and configured such that L+A. gtoreq. 6C and L. gtoreq. 4A. The method of the invention comprises using a CO. sub. 2 laser to cut a keyhole in the shell and then cutting axially outwardly from the keyhole to form the slot, resulting in slots having a width equal to the cutting width of the laser. The beam is then defocused and used to heat a portion of the metal shell surrounding the ends of each slot to produce a tempered zone.

RE41142, Feb 23, 2010

Mar 29, 2002

10/113135

Michael D. Blair - North Ogden UT, US
Darrel G. Turner - Perry UT, US
Richard K. Kunz - North Ogden UT, US
Mark J. Warner - Brigham City UT, US
Kevin W. Davis - Ogden UT, US
F. Edward Wolcott - Providence UT, US
John D. Bennett - Brigham City UT, US

Alliant Techsystems Inc. - Minneapolis MN

B65D 8/00

220581, 220586, 220 232, 220562, 220564

A pressure vessel for holding a pressurized fluid such as compressed natural gas (“CNG”) includes two end cells and zero or more interior cells. The cell geometry ensures that the cells meet one another at tangential circular surfaces, thereby reducing the tendency of adjacent cells to peel apart. A web secured about the cells includes two sheets that are tangent to the cells. Unused volumes between the cells and the web contain wedges of foam or rubber. A valve provides fluid communication between the interior of the pressure vessel and a pressurized fluid line. The filled weight of one pressure vessel does not exceed the filled weight of a conventional gasoline tank that occupies substantially the same space as the pressure vessel. The pressure vessel may be configured with exterior recesses for engaging conventional gasoline tank straps.

6095367, Aug 1, 2000

Sep 23, 1996

8/718611

Michael D. Blair - North Ogden UT
Richard Kunz - North Ogden UT
Mark J. Warner - North Ogden UT
Kevin Davis - Ogden UT
Edward Wolcott - Providence UT
Darrel Turner - Brigham City UT
John Bennett - Brigham City UT

Cordant Technologies Inc. - Salt Lake City UT

B65D 800

220581

A pressure vessel for holding a pressurized fluid such as compressed natural gas ("CNG") includes two end cells and zero or more interior cells. The cell geometry ensures that the cells meet one another at tangential circular surfaces, thereby reducing the tendency of adjacent cells to peel apart. A web secured about the cells includes two sheets that are tangent to the cells. Unused volumes between the cells and the web contain wedges of foam or rubber. A valve provides fluid communication between the interior of the pressure vessel and a pressurized fluid line. The filled weight of one pressure vessel does not exceed the filled weight of a conventional gasoline tank that occupies substantially the same space as the pressure vessel. The pressure vessel may be configured with exterior recesses for engaging conventional gasoline tank straps.

5577630, Nov 26, 1996

Feb 2, 1995

8/382502

Michael D. Blair - North Ogden UT
Richard Kunz - North Ogden UT
Mark J. Warner - North Ogden UT
Kevin Davis - Ogden UT
Edward Wolcott - Providence UT
Darrel Turner - Brigham City UT
John Bennett - Brigham City UT

Thiokol Corporation - Ogden UT

B65D 800

220581

A pressure vessel for holding a pressurized fluid such as compressed natural gas ("CNG") includes two end cells and zero or more interior cells. The cell geometry ensures that the cells meet one another at tangential circular surfaces, thereby reducing the tendency of adjacent cells to peel apart. A web secured about the cells includes two sheets that are tangent to the cells. Unused volumes between the cells and the web contain wedges of foam or rubber. A valve provides fluid communication between the interior of the pressure vessel and a pressurized fluid line. The filled weight of one pressure vessel does not exceed the filled weight of a conventional gasoline tank that occupies substantially the same space as the pressure vessel. The pressure vessel may be configured with exterior recesses for engaging conventional gasoline tank straps.