Patents by Inventor James A. Davies
James A. Davies 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).
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Patent number: 5563217Abstract: Flat rubber sheets are joined together at their primed surfaces utilizing an adhesive tape composition which features at least one EPDM rubber and will provide a long-term, water-tight barrier. The adhesive tape composition is a solventless, preformed, tacky composition comprising a) at least one crosslinkable EPDM rubber, b) a filler, either of the reinforcing or semi-reinforcing variety, c) one or more compatible tackifiers, d) a softener, and lastly, e) a cure system for the rubbery polymer. The tape composition itself has excellent ozone, moisture, weathering and heat aging resistance as well as superior low temperature properties.Type: GrantFiled: March 18, 1994Date of Patent: October 8, 1996Assignee: Bridgestone/Firestone, Inc.Inventors: James A. Davis, Chester T. Chmiel, Brian S. Alexander
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Patent number: 5551236Abstract: An electronic turbocharger control system for an internal combustion engine is provided to control at least one turbocharger by controlling a bypass valve and a wastegate in response to the engine speed, engine load, ambient temperature, and the operating environment's barometric pressure wherein the turbocharger is controlled to operate within predetermined islands of efficiency on a pressure ratio versus mass airflow map thereby allowing the adaptation of one turbocharger assembly for various applications. The method and apparatus provides improved engine efficiency and increases low speed torque.Type: GrantFiled: May 2, 1994Date of Patent: September 3, 1996Assignee: Dresser Industries, Inc.Inventors: Michael T. Zimmer, Richard J. Kakoczki, James A. Davis, Jerrold A. Pratt, Edward O. Reinbold
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Patent number: 5545685Abstract: An adhesive tape composition includes a polymer blend comprising at least one EPDM rubber, and preferably three EPDM rubbers in substantially equal amounts, and an adhesive-enhancing polymer selected from the group consisting of polyisoprene, polybutadiene, and ethylene-propylene copolymer and mixtures thereof. The tape adhesive composition further includes at least one tackifying additive compatible with said polymer blend and a sulfur and organic accelerator cure, package for said polymer blend, the adhesive composition being devoid of butyl rubber which is found in most other adhesive tape compositions. This composition is seen as providing excellent long-term heat aging, weathering resistance, and low temperature properties as compared to adhesive tape compositions containing butyl rubber. Moreover, the adhesive tape composition provides more surface tack, better "quick-grab", and higher green strength as compared to adhesive tape compositions containing 100 percent EPDM rubber.Type: GrantFiled: April 28, 1995Date of Patent: August 13, 1996Assignee: Bridgestone/Firestone, Inc.Inventors: James A. Davis, Joseph R. Hoppert, Chester T. Chmiel, Brian S. Alexander
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Patent number: 5516829Abstract: A heat seamable flame retardant sheet material for roofing prepared from an uncured polymeric composition of matter which comprises 100 parts by weight of a polymer blend comprising from about 50 to 90 parts by weight of halogenated polyolefins having up to about 2 percent by weight crystallinity, which polyolefins are prepared from monomers having at least 2 carbon atoms, and mixtures thereof and from about 10 to 50 parts by weight of a highly crystalline thermoplasticity promoter selected from the group consisting of polymeric olefins prepared from monomers consisting of at least two carbon atoms; from about 50 to 250 parts by weight of a filler selected from the group consisting of reinforcing and non-reinforcing materials and mixtures thereof per 100 parts of the polymer blend; from about 20 to 105 parts by weight of a processing material and mixtures thereof, per 100 parts of the polymer blend; and from about 15 to 90 parts by weight of an additive selected from the group consisting of flame retardant maType: GrantFiled: August 10, 1992Date of Patent: May 14, 1996Inventors: James A. Davis, Joseph K. Valaitis
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Patent number: 5512118Abstract: A rooftop curable heat seamable sheet material for roofing prepared from an uncured polymeric composition of matter comprises 100 parts by weight of a semi-crystalline polymer having more than about 2 percent by weight crystallinity and selected from the group consisting of polyolefins prepared from monomers containing at least 2 carbon atoms from about 20 to 300 parts by weight of a filler selected from the group consisting of reinforcing and non-reinforcing materials and mixtures thereof per 100 parts of polymer; from about 20 to 150 parts by weight of a processing material and mixtures thereof, per 100 parts of polymer; and from about 1.5 to 10 parts by weight of a cure package capable of allowing the composition of matter to cure at temperatures of at least about 50.degree. C.Type: GrantFiled: October 11, 1994Date of Patent: April 30, 1996Assignee: Bridgestone/Firestone, Inc.Inventors: James A. Davis, Joseph K. Valaitis
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Patent number: 5504136Abstract: An adhesive tape composition includes a polymer blend comprising at least one EPDM rubber, and preferably three EPDM rubbers in substantially equal amounts, and an adhesive-enhancing polymer selected from the group consisting of polyisoprene, polybutadiene, and ethylene-propylene copolymer and mixtures thereof. The tape adhesive composition further includes at least one tackifying additive compatible with said polymer blend and a sulfur and organic accelerator cure package for said polymer blend, the adhesive composition being devoid of butyl rubber which is found in most other adhesive tape compositions. This composition is seen as providing excellent long-term heat aging, weathering resistance, and low temperature properties as compared to adhesive tape compositions containing butyl rubber. Moreover, the adhesive tape composition provides more surface tack, better "quick-grab", and higher green strength as compared to adhesive tape compositions containing 100 percent EPDM rubber.Type: GrantFiled: October 27, 1994Date of Patent: April 2, 1996Assignee: Bridgestone/Firestone, Inc.Inventors: James A. Davis, Joseph R. Hoppert, Chester T. Chmiel, Brian S. Alexander
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Patent number: 5486249Abstract: A laminate seam of flat rubber sheet material for roofing comprising two layers (10, 11) of the sheet material, at least one layer of which is uncured or cured, and one layer of a thermoplastic film (14) interposed between the overlapped edges (12,13) of the two layers of sheeting material to form a seam without the use of an adhesive. A method for covering a roof comprises the steps of applying a thermoplastic film (14) to the edge (12) of at least one layer of a flat rubber sheet material (10); applying a second layer of flat rubber sheet material (11 ) overlapping the thermoplastic film and the edge of the first flat rubber sheet material; heating the overlapped area to a temperature slightly above the peak melt temperature of the thermoplastic film; and, seaming the overlapped area under sufficient heat and pressure to provide an acceptable seam without the use of an adhesive.Type: GrantFiled: December 5, 1994Date of Patent: January 23, 1996Assignee: Bridgestone CorporationInventors: Joseph K. Valaitis, James A. Davis, Frederick Lohr
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Patent number: 5468550Abstract: Vulcanizable elastomeric roof sheet materials for roofing having improved burn resistivity and prepared from a polymeric composition of matter comprise at least one polymer selected from the group consisting of polyolefins prepared from monomers containing at least two carbon atoms and mixtures thereof, the polymer having a crystallinity of up to about 2 percent by weight; about 20 to 125 parts by weight of one or more non-black mineral fillers per 100 parts of the polymer, about 50 to 110 parts by weight of one or more black-type fillers per 100 parts of the polymer; and from about 50 to 70 parts by weight of a processing material or softener per 100 parts of the polymer.Type: GrantFiled: June 6, 1994Date of Patent: November 21, 1995Assignee: Bridgestone/Firestone, Inc.Inventors: James A. Davis, Edward G. Kane, Brian S. Alexander, William F. Barham
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Patent number: 5407989Abstract: EPM and/or EPDM compositions exhibiting superior green strength as compared to conventional EPM/EPDM compositions are attained by adding, along with the rubber curing agents and various conventional additives as desired, colemanite and/or alumina trihydrate. Colemanite, alumina trihydrate or a mixture of the two have unexpectedly been found to enhance the green strength of EPM/EPDM compositions prior to vulcanization. The green strength promoters of this invention utilized in EPM/EPDM rubber compositions allows for faster mixing (shorter mixing cycles) and improved processing rates, such as faster calender throughput rates, to be achieved.Type: GrantFiled: March 10, 1994Date of Patent: April 18, 1995Assignee: Bridgestone/Firestone, Inc.Inventors: James A. Davis, William F. Barham, Jr., Brian S. Alexander
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Patent number: 5389715Abstract: A rooftop curable heat seamable sheet material for roofing prepared from an uncured polymeric composition of matter which comprises 100 parts by weight of a polymer blend comprising from about 10 to 95 parts by weight of an polymer selected from the group consisting of polyolefins having up to about 2 percent by weight crystallinity, which polyolefins are prepared from monomers having at least 2 carbon atoms, and mixtures thereof; from about 5 to 90 parts by weight of a crystallinity enhancing polymer and mixtures thereof; from about 20 to 300 parts by weight of a filler selected from the group consisting of reinforcing and non-reinforcing materials and mixtures thereof per 100 parts of the polymer blend; from about 1.5 to 10 parts by weight of a cure package a cure package capable of allowing the composition of matter to cure at temperatures of at least 50.degree. C.Type: GrantFiled: December 8, 1993Date of Patent: February 14, 1995Assignee: Bridgestone CorporationInventors: James A. Davis, Joseph K. Valaitis
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Patent number: 5370755Abstract: A self-adhering heat seamable sheet material for roofing prepared from an uncured polymeric composition of matter which comprises 100 parts by weight of a polymer blend comprising from about 10 to 95 parts by weight of an polymer selected from the group consisting of semi-crystalline polymers having more than about 2 percent be weight crystallinity and polyolefins having up to about 2 percent by weight crystallinity, which polyolefins are prepared from monomers having at least 2 carbon atoms, and mixtures thereof; and from about 5 to 90 parts by weight of a crystallinity enhancing polymer and mixtures thereof; from about 20 to 300 parts by weight of a filler selected from the group consisting of reinforcing and non-reinforcing materials and mixtures thereof per 100 parts of the polymer blend; and from about 20 to 150 parts by weight of a processing material and mixtures thereof, per 100 parts of the polymer blend.Type: GrantFiled: December 17, 1993Date of Patent: December 6, 1994Assignee: Bridgestone/Firestone, Inc.Inventors: James A. Davis, Joseph K. Valaitis
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Patent number: 5286798Abstract: A self-adhering heat seamable sheet material for roofing prepared from an uncured polymeric composition of matter which comprises 100 parts by weight of a polymer blend comprising from about 10 to 95 parts by weight of an polymer selected from the group consisting of semi-crystalline polymers having more than about 2 percent be weight crystallinity and polyolefins having up to about 2 percent by weight crystallinity, which polyolefins are prepared from monomers having at least 2 carbon atoms, and mixtures thereof; and from about 5 to 90 parts by weight of a crystallinity enhancing polymer and mixtures thereof; from about 20 to 300 parts by weight of a filler selected from the group consisting of reinforcing and non-reinforcing materials and mixtures thereof per 100 parts of the polymer blend; and from about 20 to 150 parts by weight of a processing material and mixtures thereof, per 100 parts of the polymer blend.Type: GrantFiled: April 6, 1992Date of Patent: February 15, 1994Assignee: Bridgestone/Firestone, Inc.Inventors: James A. Davis, Joseph K. Valaitis
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Patent number: 5278885Abstract: The present invention provides a method for positive product identification using tagging materials such as barium sulfate, manganese dioxide or mixtures thereof. Such materials may be employed, for example, in the dusting agent used in roofing materials, and applied to one or both sides of rubber roofing sheeting or admixed with the compounding ingredients during the preparation of the sheeting composition. The tagging materials can be detected and identified in the finished product by X-ray fluorescence spectroscopy.Type: GrantFiled: May 29, 1992Date of Patent: January 11, 1994Assignee: Bridgestone CorporationInventors: James A. Davis, Kenneth R. Lucas
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Patent number: 5260111Abstract: A laminate seam of flat rubber sheet material for roofing comprising two layers (10, 11) of the sheet material, at least one layer of which is uncured or cured, and one layer of a thermoplastic film (14) interposed between the overlapped edges (12, 13) of the two layers of sheeting material to form a seam without the use of an adhesive. A method for covering a roof comprises the steps of applying a thermoplastic film (14) to the edge (12) of at least one layer of a flat rubber sheet material (10); applying a second layer of flat rubber sheet material (11) overlapping the thermoplastic film and the edge of the first flat rubber sheet material; heating the overlapped area to a temperature slightly above the peak melt temperature of the thermoplastic film; and, seaming the overlapped area under sufficient heat and pressure to provide an acceptable seam without the use of an adhesive.Type: GrantFiled: August 8, 1991Date of Patent: November 9, 1993Assignee: Bridgestone CorporationInventors: Joseph K. Valaitis, James A. Davis, D. Frederick Lohr
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Patent number: 5256228Abstract: A heat seamable sheet material for roofing prepared from an uncured polymeric composition of matter which comprises 100 parts by weight of a polymer blend comprising from about 50 to 90 parts by weight of polyolefins having up to about 2 percent by weight crystallinity, which polyolefins are prepared from monomers having at least 2 carbon atoms, and mixtures thereof and from about 10 to 50 parts by weight of a highly crystalline thermoplasticity promoter selected from the group consisting of polymeric olefins prepared from monomers consisting of at least two carbon atoms; from about 50 to 250 parts by weight of a filler selected from the group consisting of reinforcing and non-reinforcing materials and mixtures thereof per 100 parts of the polymer blend; and from about 20 to 150 parts by weight of a processing material and mixtures thereof, per 100 parts of the polymer blend.Type: GrantFiled: December 6, 1991Date of Patent: October 26, 1993Assignee: Bridgestone CorporationInventors: James A. Davis, Joseph K. Valaitis
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Patent number: 5242970Abstract: A rooftop curable heat seamable sheet material for roofing prepared from an uncured polymeric composition of matter comprises a semi-crystalline polymer having more than about 2 percent by weight crystallinity and selected from the group consisting of polyolefins prepared from monomers containing at least 2 carbon atoms, a filler selected from the group consisting of reinforcing and non-reinforcing materials and mixtures a processing material or mixtures thereof; and a cure package capable of allowing the composition of matter to cure at temperatures of at least about 50.degree. C.Type: GrantFiled: April 24, 1991Date of Patent: September 7, 1993Assignee: Bridgestone CorporationInventors: James A. Davis, Joseph K. Valaitis
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Patent number: 5237826Abstract: A method of configuring a controller of an HVAC system comprising the step of configuring the HVAC system based upon components which are indicated by a wiring harness to be physically connected to the HVAC system.Type: GrantFiled: July 23, 1990Date of Patent: August 24, 1993Assignee: American Standard Inc.Inventors: Joe M. Baldwin, Richard A. Bishop, James A. Davis, Merle A. Renaud
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Patent number: 5162436Abstract: A self-adhering heat seamable sheet material for roofing prepared from an uncured polymeric composition of matter which comprises 100 parts by weight of a semi-crystalline polymer having more than about 2 percent by weight crystallinity and selected from the group consisting of polyolefins prepared from monomers containing at least 2 carbon atoms; from about 20 to 300 parts by weight of a filler selected from the group consisting of reinforcing and non-reinforcing materials and mixtures thereof per 100 parts of the polymer; and from about 20 to 150 parts by weight of a processing material and mixtrues thereof, per 100 parts of the polymer.Type: GrantFiled: October 4, 1990Date of Patent: November 10, 1992Assignee: Bridgestone/Firestone, Inc.Inventors: James A. Davis, Joseph K. Valaitis
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Patent number: 5156834Abstract: Antiperspirant compositions comprising a particulate antiperspirant material, a bulking/suspending agent, a volatile silicone and a non-volatile emollient.Type: GrantFiled: July 3, 1989Date of Patent: October 20, 1992Assignee: The Procter & Gamble CompanyInventors: Mary V. Beckmeyer, James A. Davis, Gary R. Kelm
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Patent number: D358927Type: GrantFiled: September 16, 1994Date of Patent: June 6, 1995Assignee: General Mills, Inc.Inventors: James A. Davis, Brian E. Glass, Todd W. Gusek, Kimberly F. Boucher