David D Campbell Sr.
Security Companies and Guards in Salt Lake City, UT

5180272, Jan 19, 1993

Feb 19, 1992

7/838548

David R. Campbell - Salt Lake City UT

Cambelt International Corporation - Salt Lake City UT

B65G 6538

414313

An apparatus for removing bulk materials from a laterally enclosed storage area wherein the apparatus may be substantially buried within the bulk material (11). The apparatus includes a support column (16) mounted at a base into a support floor (25). An auger (17) is attached by an axial mount at the base of the support column for enabling rotational inclination of the auger from (i) a vertical orientation vertical orientation wherein the auger is nearly parallel with the vertical axis of the support column, (ii) through intermediate angles of inclination (54), to (iii) a substantially horizontal orientation (55) wherein the auger is adjacent to the support floor. The suspension cable (61) is coupled between the support column and auger to enable selective adjustment of auger inclination. A rotational displacement drive (35) is coupled to the support column to rotate the column about its vertical axis, along with the attached auger. A rotational drive motor (51) is mounted at a distal end of the auger.

5098247, Mar 24, 1992

Aug 15, 1990

7/567936

David R. Campbell - Salt Lake City UT

Cambelt International Corporation - Salt Lake City UT

B65G 6538

414326

An apparatus for removing bulk materials from a laterally enclosed storage area wherein the apparatus may be substantially buried within the bulk material. The apparatus includes a support column mounted at a base into a support floor. An auger is attached by means of an axial mount at the base of the support column for enabling rotational inclination of the auger from (i) a vertical orientation wherein the auger is nearly parallel with the vertical axis of the support column, (ii) through intermediate angles of inclination, to (iii) a substantially horizontal orientation wherein the auger is adjacent to the support floor. The suspension cable is coupled between the support column and auger to enable selective adjustment of auger inclination. A rotational displacement drive is coupled to the support column to rotate the column about its vertical axis, along with the attached auger. A rotational drive motor is mounted at a distal end of the auger.

4714151, Dec 22, 1987

Apr 30, 1986

6/858012

Colin D. Campbell - West Jordan UT
David R. Campbell - Salt Lake City UT

Cambelt International Corporation - Salt Lake City UT

B65G 2100

1988605

A system for covering and supporting a conveyor belt system. The conveyor belt system is supported in large measure by a structural support tube. The structural support tube is simply a tube or pipe of the conventional type. Disposed through the center of the tube are a plurality of internal support pipes. In turn, auxiliary support pipes, smaller in diameter than the internal support pipes, may traverse the interior of the internal support pipe and extend out either end. Attached to the auxiliary support pipes is a conventional belt conveyor system. The belt conveyor system is, in turn, enclosed by a top cover and a lower enclosure. All of the parts are held securely together using readily available materials such as angle iron. The present invention is extremely flexible providing the capability of easily constructing 40, 60, 80 and 120 foot spans of conveyor system. In addition, it is possible to provide an open conveyor, a partially enclosed conveyor, or a totally enclosed conveyor.

5449263, Sep 12, 1995

Jun 7, 1994

8/255302

David R. Campbell - Salt Lake City UT
Colin D. Campbell - South Jordan UT

Cambelt International Corporation

B65G 6538

414320

An apparatus for removing bulk materials from a laterally enclosed storage area wherein the apparatus may be substantially buried within the bulk material (11). The apparatus includes a support column (16) mounted at a base into a support floor (25). An auger (17) is attached with an axial mount at the base of the support column for enabling rotational declination of the auger from (i) a vertical orientation wherein the auger is nearly parallel with the vertical axis of the support column, (ii) through intermediate angles of declination (54), to (iii) a substantially horizontal orientation (55) wherein the auger is adjacent to the support floor. The suspension cable (61) is coupled between the support column and auger to enable selective adjustment of auger declination. A rotational displacement drive (35) is coupled to the support column to rotate the column about its vertical axis, along with the attached auger. A rotational drive motor (51) is mounted at a distal end of the auger.

4170293, Oct 9, 1979

Aug 3, 1977

5/821477

David R. Campbell - Salt Lake City UT

Cambelt International Corporation - Salt Lake City UT

B65G 2100

198861

Prior known enclosed conveyors have had a conventional belt conveyor mounted on a structural framework resting on a series of support columns known in the art as bents. A housing or gallery, as it is known in the art, consisting of a roof, side walls and optionally a floor, is constructed on structural members around the conveyor covered by a protective material. Often times, the housing is large enough to accomodate a walk-way alongside the conveyor. In each instance, however, both the housing and the conveyor are supported by structural members and not by the protective covering material of the housing. There have been instances of short spans of enclosed conveyors using solid longitudinal members as side and top walls as well as for support, but these spans have no internal stabilizing members to prevent undesirable distortion of the conveyor housing.

3993184, Nov 23, 1976

May 22, 1975

5/579774

David R. Campbell - Salt Lake City UT

Cambelt International Corporation - Salt Lake City UT

B65G 4718, B65G 1916

198533

A closed conveyor for transporting finely divided solids, such as grain and the like, comprising feed and discharge sections interconnected by a transport conduit and a return conduit. Sprockets are provided in the feed and discharge sections and a cable is trained about the sprockets and through the two conduits. The cable is equipped with material-engaging flights of area less than the cross-section of the conduit. Each sprocket is provided with material-engaging blades which serve to stir, fluidize and impart movement to the material being transported to render it as a fast-flowing dilute suspension. Lugs are provided on the cable between the flights and are positioned to be engaged by complemental lug-engaging elements on the sprockets. Each pair of lug-engaging elements on the sprockets fits between but in contact with a pair of lugs on the cable. The sprocket elements are notched to accept the cable lugs.