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| Number | Title | Issue Date |
| 5224621 | Double wall underground storage tank An underground storage tank comprises a cylindrical inner wall, a cylindrical outer wall of plastic resin and reinforcement fibers, and a layer of spacer filaments wound around the inner wall, the spacer filaments separating the inner and outer walls, and... | 07/06/1993 |
| 5196467 | Glass size compositions, coated glass fibers and reinforced thermoplastics Aqueous size compositions for glass fibers including melamine formaldehyde resins, phenoxy resins and epoxy coupling agents which are particularly suitable glass fiber reinforcements for thermoplastics. In particular, chopped glass fibers coated with the ... | 03/23/1993 |
| 5182784 | Optical fiber or filament reinforcement coating An aqueous coating composition for fibers comprising, a thermoplastic polyurethane latex, and acrylic latex, the balance being water. The coating also contains a paraffin wax or a second acrylic latex. When coated onto a bundle or strand of glass fibers t... | 01/26/1993 |
| 5115936 | Double wall underground storage tank An underground storage tank has an inner wall and an outer wall defining a generally annular space for receiving a leak detecting fluid, and a plurality of ribs bonded to the inner and outer walls and projecting radially outwardly from the inner wall, eac... | 05/26/1992 |
| 5102487 | Manufacturing roofing shingles A method and apparatus for manufacturing roofing shingles having tabs and cutouts comprises a cutting cylinder for engaging a membrane and cutting it into continuous strips, where the circumference of the cutting cylinder and the length of the shingle hav... | 04/07/1992 |
| 5094899 | High R super insulation panel An insulation panel comprises a mineral fiber board having a density between 8 and 28 pounds per square foot, the fibers having no organic binder thereon, and between 5 and 40 percent by weight of particulate material packed in the interstices of the boar... | 03/10/1992 |
| 5090981 | Method for making high R super insulation panel An insulation panel comprises a mineral fiber board having a density between 8 and 28 pounds per square foot, the fibers having no organic binder thereon, and between 5 and 40 percent by weight of particulate material packed in the interstices of the boar... | 02/25/1992 |
| 5055330 | Edge-reinforced folded glass wool insulation layers A strip of reinforcing material is applied to an edge portion of a glass wool thermal insulation blanket. In a folded, two-layer unit, the reinforcing strip is applied to a major surface of one of the layers on an edge portion opposite the fold.... | 10/08/1991 |
| 5055428 | Glass fiber compositions Based on the discovery that Al2 O3 strongly retards the dissolving rate of insulating glass fibers in a synthetic lung solution, glass fibers having low alumina contents have been identified that dissolve significantly faster in lung... | 10/08/1991 |
| 5027946 | Dual element wrapper and shroud for shingle bundles An improved wrapper or shroud for packaging shingles which is composed of a heat reflective layer and a heat absorptive layer. The wrapper enhances temperature reduction in packages of shingles exposed to high ambient temperatures.... | 07/02/1991 |
| 5015278 | Open bottomed spinner for mineral fibers A spinner for centrifuging molten glass into glass fibers comprises a spinner peripheral wall having orifices for forming mineral fibers, and an annular spinner bottom wall defining an open bore, the bottom wall being connected at its outer periphery to t... | 05/14/1991 |
| 4883690 | Method and apparatus for coating elongate members Method and apparatus to apply a coating or coatings of a predetermined thickness over designated sections of a continously advanced elongate member by means of cooperating guide die and coating die segments. The die includes two abutting members through w... | 11/28/1989 |
