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| Number | Title | Issue Date |
| 4399319 | Thermally insulated composite flexible hose A thermally insulated composite flexible hose, particularly suited for heat exchanger connections in building structures, comprising an outer foam jacket of thermal insulation and an inner extended unitary elastomeric extrusion comprising primary tubes sp... | 08/16/1983 |
| 4354546 | Header pair and double tube mat connection A method and means for interconnecting (a) a pair of headers for circulating inflow and outflow fluids such as a heat exchange liquid with (b) first and second extended flexible tube mats formed of a plurality of tubes cojoined side-by-side with the end p... | 10/19/1982 |
| 4353352 | Solar thermosyphon water heater A solar thermosyphon water heater assembly wherein an inlet manifold and an outlet manifold which also serves as a storage tank are connected by a solar heat absorber comprising flexible rubber tube strips each formed of multiple tubes connected by separa... | 10/12/1982 |
| 4341002 | Tool for flexible tube installation A hand tool for radial installation in openings through the wall of a larger rigid tube of flexible tubes having rigid inner liners in a portion of their length adjacent to the end to be so installed. The tool includes a generally cylindrical elongated ha... | 07/27/1982 |
| 4270596 | Tube mat heat exchanger A heat exchanger adapted particularly for use in embedded radiant heating systems and including a plurality of webbed tube mats and associated manifolds, wherein the webs are separated from their adjacent tubes along tear lines at at least two longitudina... | 06/02/1981 |
