James Arthur Leflar
Engineers at Silver Mist Ln, Fort Collins, CO

4498265, Feb 12, 1985

Jun 11, 1982

6/387358

James A. Leflar - Fort Collins CO
William C. Wardlow - Fort Collins CO

International Solarpanel, Inc. - Fort Collins CO

E06B 326

52403

A sealing arrangement is disclosed by which a glass panel cover may be installed with a weather-tight seal in a solar collector housing. The housing includes side walls, the upper edges of which are formed with a generally cylindrical groove which faces upwardly. The sealing arrangement includes an elongate resilient body formed with a generally cylindrical anchor section having a cross-section of a dimension just the same as or less than the cross-section dimension of the cylindrical groove, and a holding section formed integrally with the anchor section near the top thereof and having a generally U-shaped cross-section which faces inwardly of the housing.

4440152, Apr 3, 1984

Oct 26, 1981

6/314953

James A. Leflar - Fort Collins CO
Phillip C. Stanwood - Fort Collins CO

Western Solar Products, Inc. - Fort Collins CO

F24J 302

126435

A nonpressurized solar heating system includes a solar collector array through which a heat transfer fluid flows, a conduit for delivering fluid from the solar collector array to a heat exchanger, another conduit for carrying the fluid from the heat exchanger to a fluid expansion tank, and a pump for pumping fluid from the tank to the solar collector array. Fluid from the heat exchanger is received by the tank through an inlet located near the bottom thereof, and fluid is delivered to the pump through an outlet also located near the bottom of the tank. A closable opening is located near the top of the tank for introducing fluid thereinto. The heat transfer fluid is placed in the tank at substantially zero pressure and is then pumped to the other parts of the system. The fluid has a boiling point of about 550. degree. F. at atmospheric pressure, a boiling point exceeding about 400. degree. F.