Jay Shane Duke3544 5700 W, Salt Lake City, UT 84128

7722759, May 25, 2010

Nov 2, 2006

11/555979

Jay Duke - West Valley City UT, US
Shane Duke - West Valley City UT, US

Pariette Ridge Development Company LLC. - West Valley City UT

F17C 13/02

208390, 208424, 422232, 422233

An apparatus, system, and method are disclosed for separating minerals from mineral feedstock—for example bitumen from tar sand. The apparatus includes residence chambers for contacting solvent and tar sand. The solvent-tar sand contact occurs in at least two stages. The drained miscella from the first stage is sent to a flashing module to separate the miscella into recovered solvent, a bitumen stream, and a volatile hydrocarbons stream. Solvent is recycled from the final stage and reused in the residence chambers. An energy recovery module recovers the energy from the volatile hydrocarbons stream. A solvent stripper removes the solvent residue from the drained tar sand to create a cleaned sand stream, and the solvent stripper recycles the solvent vapors to energize and assist the separation process. The apparatus enables a water-free, energy efficient, and nearly complete recovery of bitumen from tar sand.

2003002, Jan 30, 2003

Aug 8, 2001

09/925052

Jay Duke - West Jordan UT, US
Bruce Downard - Stansbury Park UT, US

F16C029/02

384/032000

The instant invention includes a two-piece interlocking wear bearing insert . The wear bearing insert of the instant invention utilizes a complementary two-piece design that prevents rotation of the entire assembly in a groove of one reciprocating element. A plurality of lubrication slots and in a respective axial edge of each interlocking element and facilitates even distribution of lubricants. Slots and may be molded into the interlocking elements and thereby obviating the need to machine holes into the wear bearing insert material. Each element and contains an axial slot and respectively, wherein each slot axially extends through a relatively narrow or cylindrically short section and , respectively, of each element and respectively. Known designs contain axial slots that axially extend across the length of the bearing surface thereby increasing the likelihood of bearing insert failure given an associated reduction in the bearing surface area. The axial slots and formed in the narrow arcuate sections and do not extend through the length of the entire assembly and therefore reduce insert failure when the complementary elements and are nested together as a unit

4717160, Jan 5, 1988

Apr 21, 1986

6/853879

Gordon T. Zitting - Sandy UT
Jay T. Duke - West Valley City UT

Microdot Inc. - Darien CT

F16J 1524
F16J 1554
F16L 1906
F16L 2104

277105

A seal assembly for a shaft comprises one or more annular sealing elements having an initial internal diameter larger than the diameter of the shaft. The elements are deformed by a pair of annular backup rings disposed on opposite sides thereof. The backup rings have opposed axially extending undulations therein for effecting axial deformation and radial contraction of the sealing elements upon advancement of the backup rings toward one another.