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| Number | Title | Issue Date |
| 4303721 | Closed cell foam printing blanket A new resilient compressible printing element having a rubber layer with foamed closed cells therein. The closed cells are formed by the use of blowing agents which are activated and foam the material while an external pressure is applied to the material ... | 12/01/1981 |
| 4286030 | Thermoset resin impregnated web and process of making Battery separators, filters and other porous semi-rigid products are provided by a thermoset resin impregnated fibrous web containing cellulosic fiber, synthetic wood pulp, paper making staple long fiber and thermoset resin. The temperature for thermosett... | 08/25/1981 |
| 4248960 | Radiation responsive relief imageable plastic laminate A relief producing laminate having an over-lamina comprised of an unsaturated natural-like rubber composition characterized by relief differentiation in response to patterned radiation exposure and an under-lamina comprised of a resilient composition and ... | 02/03/1981 |
| 4205123 | Battery separator with porous body and fused rib Battery separators with degradation resistant rib areas are produced from nonwoven mats of thermoplastic fibers by substantially fusing the fibers in raised regions of the mat. The fusion is progressively lessened toward the base of the rib. The rib is fo... | 05/27/1980 |
| 4110148 | Apparatus for rapidly producing cemented panes of insulating glass An improved method for preparing double or multiple pane insulating glass is described wherein the sealant employed to seal the glass and the frame is cured rapidly using capacitive high frequency heating.... | 08/29/1978 |
| 4102502 | Concentration of plate-shaped minerals Minerals, which when mined are recovered in plate-shaped form, such as vermiculite, are efficiently concentrated in a process wherein the mined ore is passed over a series of revolving spaced rolls. Various preferred aspects of the process such as the use... | 07/25/1978 |
| 4098047 | Joint sealing method A method of sealing joints e.g. between concrete sections in road, bridge and parking deck structures against passage of water, dirt, etc., is described wherein recesses are formed in the concrete surface on each side of the joint and a specifically desig... | 07/04/1978 |
| 4062703 | Sand containing flux Zinc ammonium chloride type fluxes can be made that have longer life and reduced smoke characteristics by incorporating 1 to 50% sand into conventional fluxes for use on metal container side seam soldering baths, as well as into galvanizing fluxes.... | 12/13/1977 |
| 4043246 | Sheet metal nail for securing coverings to cementitious materials An improved fastener of the sheet metal type for anchoring coverings to soft, not-fully cured cementitious masses, has a head or cap portion and a hollow shank portion comprised of a pair of generally U-shaped, opposed legs, one leg being substantially fu... | 08/23/1977 |
| 4044091 | Separator for concrete wrapping to submarine pipelines A generally T-shaped flexible spacer for use in the formation of a flexible joint in concrete cladding for pipes, having a base flange and a compressible web extending generally perpendicularly from the base flange on one side thereof. In use, spacers are... | 08/23/1977 |
| 4041148 | New aerosol propellants for personal products Certain fluorinated dimethyl ethers have been found to possess the stability, the compatibility and sufficient freedom from deleterious physiological effects to be used as aerosol propellants in cosmetic, hygenic, pharmaceutical and other personal product... | 08/09/1977 |
| 4037627 | Separator for concrete wrapping to submarine pipelines A generally T-shaped flexible spacer for use in the formation of a flexible joint in concrete cladding for pipes, having a base flange and a compressible web extending generally perpendicularly from the base flange on one side thereof. In use, spacers are... | 07/26/1977 |
| 4036388 | Sealing gaskets for container closures The invention relates to the gasketting of cap blanks, to be closed onto bottles or other containers. The gaskets lie across the more or less flat top of the cap blank and the invention is concerned with the peripheral part of the gasket, i.e. that part w... | 07/19/1977 |
| 4034120 | Pelleting aid for agricultural products The pelleting of fibrous agricultural material, such as beet pulp is facilitated by the incorporation of a mixture of expanded vermiculite and/or finely divided vermiculite ore with an organic material which may be animal fat or a vegetable oil product su... | 07/05/1977 |
| 4003758 | Battery separator with porous body and fused rib Battery separators with degradation resistant rib areas are produced from nonwoven mats of thermoplastic fibers by substantially fusing the fibers in raised regions of the mat. The fusion is progressively lessened toward the base of the rib. The rib is fo... | 01/18/1977 |
| 4000352 | Battery separator A battery separator is provided that has a plurality of protrusions extending above the main surface thereof. The protrusions are arranged in an entirely new pattern which permits a minimum total area of the separator to be covered with protrusions and ye... | 12/28/1976 |
| 3995586 | Coating apparatus Disclosed is a valve that has a torpedo shaped valving member in the middle of an enlarged passageway. The valving member contains an elastomeric sleeve that expands outwardly from a hinged area when compressed to form a line seal with the passageway. The... | 12/07/1976 |
| 3995062 | Halocyclopropyl halomethyl ethers The following halocyclopropyl halomethyl ethers have been synthesized and found to possess utility as general inhalation anesthetics: 1-chloro-2-chlorofluoromethoxy-1,2,3,3-tetrafluorocyclopropane, 1-chloro-2-difluoromethoxy-1,2,3,3-tetrafluorocyclopropane, ... | 11/30/1976 |
| 3989845 | Anesthetic chlorocyclopropanes The following chlorocyclopropanes have been found to possess utility as general inhalation anesthetics: 1,1-dichloro-2-methyl-2,3,3-trifluorocyclopropane, 1,2-dichloro-1-fluoro-2-methylcyclopropane, 1,1,2-trichloro-2,3,3-trifluorocyclopropane, 1... | 11/02/1976 |
| 3981779 | Inhibition of scale on saline water heat exchange surfaces with iminodiacetic acid compounds A method for decreasing fouling of metalliferous surfaces of apparatus wherein water is evaporated from an aqueous system containing components which deposit onto the surfaces as hydrophilic foulants. The method comprises adding to the aqueous system a ch... | 09/21/1976 |
| 3963396 | Closure lining machine A plastics introducing unit for a closure lining machine in which pellets are severed from a continuous rod and carried along part of a closed path to a transfer station where the pellets are deposited accurately centrally of the closures to be subsequent... | 06/15/1976 |
| 3960580 | Magnesium phosphate concrete compositions The setting time of quick-setting magnesium oxide-ammonium phosphate concretes is extended by the addition of specified oxy-boron compounds such as sodium borate. The incorporation of the oxy-boron compound in the composition has also been found to increa... | 06/01/1976 |
| 3958013 | Halogenated cyclobutyl ether anesthetics The following halogenated cyclobutyl ethers have been found to possess utility as general anesthetics: 1-chloro-2-methoxy-1,2,3,3,4,4-hexafluorocyclobutane, 1-chloro-2-methoxy-1,4,4-trifluorocyclobutane and 1-bromo-2-methoxy-1,2,3,3,4,4-hexafluorocyc... | 05/18/1976 |
| 3956557 | Waterstops Novel external waterstops for use in sealing concrete joints which comprise a deformable section which forms a grout-tight seal when stop-end shuttering is positioned against the waterstop.... | 05/11/1976 |
| 3946139 | Vinylidene chloride copolymer latexes New vinylidene chloride copolymer latexes have been prepared with a hydroxyalkyl ester comonomer and acrylamido-2-methylpropane sulfonic acid. These products can be used to coat unprimed polyolefin film and yield laminates having dynamic peel strengths as... | 03/23/1976 |
| 3933525 | Battery separator manufacturing process Battery separators and the like are produced from non woven mats of thermoplastic fibers which fibers contain an internal wetting agent that is relatively insoluble in battery electrolite and tends to bloom under conditions of use. After preliminary forma... | 01/20/1976 |
| 3932669 | 1-Chloro-2,2-dimethyl-1,4,4-trifluorocyclobutane as an anesthetics The compound 1-chloro-2,2-dimethyl-1,4,4-trifluorocyclobutane has been found to possess useful properties as a general inhalation anesthetic.... | 01/13/1976 |
| 3932529 | Halocyclopropyl halomethyl ethers The following halocyclopropyl halomethyl ethers have been synthesized and found to possess utility as general inhalation anesthetics: 1-chloro-2-chlorofluoromethoxy-1,2,3,3-tetrafluorocyclopropane, 1-chloro-2-difluoromethoxy-1,2,3,3-tetrafluorocyclopropane, ... | 01/13/1976 |
| 3931344 | Bromofluorocyclopropanes The following newly synthesized bromofluoromethylcyclopropanes have been found to possess utility as general inhalation anesthetics: 1-bromo-1,2-difluoro-2-methylcyclopropane and 1-bromo-1-fluoro-2-methylcyclopropane.... | 01/06/1976 |
