Patents by Inventor Jack Hill

Jack Hill has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6371894
    Abstract: A medical device for physical therapy treatment to enable patients confined to a bed to increase upper and lower extremity strength and promote a quicker return to standing and walking activities. The medical device can be a generally wedge-shaped article constructed of a resiliently compressible material designed to consistently return to its original shape after repeatedly being compressed. The medical device can have an expansive front support base, an expansive, taller rear support base, a generally flat bottom surface, left and right sides and a top surface which slopes from the expansive front support base to the taller rear support base at an angle designed to provide a proper range of motion for a patient's legs when performing a certain therapeutic exercise. The left and right sides can be provided with opposing indentations therein at about the mid portion of the medical device.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: April 16, 2002
    Inventor: Jack Hill
  • Patent number: 5536780
    Abstract: A process for making reduced gloss thermoplastic resin compositions is provided. The process involves compounding a nitrile polymer with an electrophilic reagent to form a polymeric gel compound, blending the polymeric gel compound with a first thermoplastic resin and a weight ratio of between 5:1 and 0.5:1 to make a concentrate comprising gels dispersed in the first thermoplastic resin, and admixing the concentrate with a second thermoplastic resin produced the desired composition, wherein the concentrate is used at a level of from 2 to 60 percent by weight based on the total weight of the composition. The process provides improved product consistency, and consistently yields a product exhibiting reduced gloss and high levels of impact strength with a uniformly dispersed concentration of polymeric gels therein. The compositions are useful in making molded articles exhibiting consistent reduced gloss and high impact strengths.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: July 16, 1996
    Assignee: General Electric Company
    Inventors: Qamar Bhatia, Jack Hill, Robert Hossan, William Pecak, Robert Wildi
  • Patent number: 5530062
    Abstract: Gels useful as low gloss additives for blends of addition polymers, such as ABS resins, with polycarbonates are prepared by a melt blending operation in which a polyepoxide such as 3,4-epoxycyclohexyl 3,4-epoxycyclohexanecarboxylate is blended with at least one addition polymer such as a styrene-acrylonitrile copolymer, and concurrently with at least one aromatic polycarbonate in at least two increments. The first increment comprises about 20-60% of total polycarbonate and the second increment is subsequently introduced.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: June 25, 1996
    Assignee: General Electric Company
    Inventors: Greg R. Bradtke, Robert H. Wildi, Jack A. Hill, Kenneth G. Powell
  • Patent number: 5336701
    Abstract: A process is provided for producing improved color acrylonitrile polymer gels involving compounding a composition of an acrylonitrile polymer with an electrophilic reagent to produce acrylonitrile polymer gels, and admixing water with the gels to reduce the yellowness thereof. Improved color, reduced gloss polycarbonate/graft polymer blends are provided by compounding the resultant gels with polycarbonate, a styrene-acrylonitrile copolymer and ABS graft polymer to form reduced gloss PC/ABS/SAN composition. The process provides acrylonitrile gels and reduced gloss compositions exhibiting improved levels of color. The blend compositions are useful as molding resins and the gelled acrylonitrile polymer is useful as a gloss reducing additive.
    Type: Grant
    Filed: September 28, 1992
    Date of Patent: August 9, 1994
    Assignee: General Electric Company
    Inventors: Robert H. Wildi, Keith E. Cox, Jack A. Hill
  • Patent number: 4374136
    Abstract: Compounds of the formula: ##STR1## wherein R.sup.1 represents a methyl or ethyl group, R.sup.2 represents a bromine or chlorine atom, and R.sup.3 represents a hydrogen, chlorine, bromine or iodine atom, an alkyl or alkenyl group containing up to 4 carbon atoms, or a cyano or trifluoromethyl group, are new compounds possessing antimalarial properties.
    Type: Grant
    Filed: October 21, 1981
    Date of Patent: February 15, 1983
    Assignee: May & Baker Limited
    Inventors: Jack Hill, Brian W. Sharp, Dennis Warburton, Robert B. Walker, deceased, by Thomas Walker, administrator