ROBERT G ANDERSON, MD
Radiology at 12 Ave, Fort Worth, TX

3995812, Dec 7, 1976

Aug 13, 1975

5/604464

Robert V. Anderson - Fort Worth TX

Producers Specialty & Mfg. Co., Inc. - Fort Worth TX

B05B 114

239458

The spray pattern of a shower head may be varied by threading the faceplate of the head axially relative to its housing to change the effective cross-sectional areas of tapered grooves in pattern control elements which project through openings in the faceplate and which rotate as a unit with the faceplate during its manipulation. One embodiment has a mounting ring for the control elements which is rotatably retained on the central arbor of the head by a collar bonded to the tip end of the arbor. A second embodiment has a mounting ring for the elements which is threaded onto the exterior of the arbor in a manner to provide relative linear displacement between the faceplate and the elements when the faceplate is threaded into or out of the arbor, and a third embodiment utilizes a threaded collar at the tip end of the arbor to retain the freely rotatable mounting ring for the elements in place on the arbor. The faceplate of each of the three embodiments it telescopically received within the housing at its outlet, while a fourth embodiment has a faceplate that is disposed outside of the housing and telescopically receives the outlet thereof.

4164934, Aug 21, 1979

Aug 16, 1976

5/714497

Robert V. Anderson - Fort Worth TX

F24J 302

126438

A fixedly supported, low cost solar energy collecting device having an elliptical solar reflector is provided which is capable of efficiently collecting and concentrating solar energy during all seasons and sun declinations notwithstanding complete elimination of mechanism for shifting the reflector to follow the sun's path. The collector includes an elongated, trough-like reflector which substantially coincides with a section of a focal end surface of an imaginary elliptical cylinder, with a heat exchange fluid tube positioned along the adjacent focal line of the imaginary elliptical cylinder; in this fashion, solar rays passing through or parallel to the remaining focal line of the imaginary cylinder and striking the reflector are focused onto the heat exchange tube, so that solar energy collection is concentrated without the necessity of precisely orienting the reflector relative to the sun. In preferred forms, a plurality of juxtaposed reflector units are provided in the collection device, with the reflector focal lines being positioned along a geographic east-to-west line and at an angle of elevation equal to the latitude of the collector's position on the earth.

4999900, Mar 19, 1991

Jun 29, 1990

7/546674

Robert V. Anderson - Fort Worth TX

B23Q 1720, G01F 2500

29407

A method is shown for installing a product monitoring device in an underground storage tank, such as the tanks used to store petroleum products. A product sensor is passed through the annular space defined between the tank riser pipe and fill pipe into the tank interior. The product sensor is used to sense representative characteristics of the product located within the tank interior.

4158521, Jun 19, 1979

Jun 26, 1978

5/919215

Robert W. Anderson - Fort Worth TX
Bob G. Kannenberg - Arlington TX

The Western Company of North America - Fort Worth TX

E02D 314, E21B 3313

405264

A solution of an oxygenated polyamine, which is the reaction product of dimethylamine and epichlorohydrin, has been discovered to possess excellent stabilization properties when used as a treatment for stabilizing a clay containing formation, for example in the treatment of oil and gas producing boreholes which penetrate clay containing formations. Preferred copolymers of this type which are useful in clay formation treatments include those having epichlorohydrin to dimethylamine mole ratios in the range of from about 0. 79 to about 0. 93.