Patents by Inventor Raymond Clarke
Raymond Clarke 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: 7169451Abstract: Novel gas-permeable membranes which are particularly useful in the packaging of fresh cut fruit and vegetables, and other respiring biological materials. The membranes have an O2 permeability of at least 775,000 ml/m2.atm.24 hrs, a P10 ratio of at least 1.3, and a ratio of CO2 permeability to O2 permeability (R) of at least 1.5, and are made by forming thin polymeric coatings on microporous polymeric films. Preferred coating polymers are side chain crystalline polymers. Preferred microporous films contain inorganic fillers, particularly such films based on ultrahigh molecular weight polyethylene or polypropylene. FIG. 1 illustrates how O2 permeability and R ratio vary for different coating polymers and microporous films.Type: GrantFiled: October 12, 2001Date of Patent: January 30, 2007Assignee: Landec CorporationInventors: Raymond Clarke, Ray F. Stewart, Valentine Y. Yoon, Donald A. Schultz, Bradley McClary
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Patent number: 7137935Abstract: The office gym exercise kit is a portable exercise kit that provides for a number of exercises to be performed by a user, including arm, leg and back exercises. The kit components are capable of attaching about a chair post and a chair back support to provide the exercises for the user. A flexible body is wrapped around the post and under the base of the chair then secured such that the flexible body remains in place around the chair post. A flexible band is wrapped around the chair back support. Both the flexible body and flexible band have retainers attached thereon. Several elastic straps are included in the kit. The elastic straps may be fastened to the flexible body and flexible band by latching onto the retainers. The user then exercises by extending the elastic straps with arms, legs or the like.Type: GrantFiled: April 20, 2004Date of Patent: November 21, 2006Inventors: Raymond Clarke, Lorri Wilson-Clarke
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Publication number: 20050233875Abstract: The office gym exercise kit is a portable exercise kit that provides for a number of exercises to be performed by a user, including arm, leg and back exercises. The kit components are capable of attaching about a chair post and a chair back support to provide the exercises for the user. A flexible body is wrapped around the post and under the base of the chair then secured such that the flexible body remains in place around the chair post. A flexible band is wrapped around the chair back support. Both the flexible body and flexible band have retainers attached thereon. Several elastic straps are included in the kit. The elastic straps may be fastened to the flexible body and flexible band by latching onto the retainers. The user then exercises by extending the elastic straps with arms, legs or the like.Type: ApplicationFiled: April 20, 2004Publication date: October 20, 2005Inventors: Raymond Clarke, Lorri Wilson-Clarke
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Publication number: 20040131810Abstract: Gas-permeable membranes comprising a microporous film and a coating on the microporous film, the coating being obtained by coating the microporous film with a liquid coating composition comprising a polymer and hollow polymeric particles dispersed in the composition, and then solidifying the coating. The gas-permeable membrane has a reduced ratio of carbon dioxide permeability to oxygen permeability.Type: ApplicationFiled: December 19, 2003Publication date: July 8, 2004Inventors: Raymond Clarke, Charles B. Derringer
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Patent number: 6548132Abstract: Novel gas-permeable membranes which are particularly useful in the packaging of fresh cut fruit and vegetables, and other respiring biological materials. The membranes comprise a microporous film or other gas-permeable substrate and, coated on the substrate, a layer of a block copolymer having a heat of fusion of at least 5 J/g and containing polysiloxane polymeric blocks and crystalline polymeric blocks having a melting point of −5 to 40° C.Type: GrantFiled: July 23, 1998Date of Patent: April 15, 2003Assignee: Landec CorporationInventors: Raymond Clarke, Donald A. Schultz
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Publication number: 20020127305Abstract: Packaging of respiring biological materials, particularly bananas and other fruits, in sealed containers. The containers preferably include a gas-permeable membrane comprising (1) a microporous film, and (2) a polymeric coating on the microporous film. Using appropriate containers and appropriate controlled atmospheres around the container, the respiring materials can be stored and/or ripened under controlled conditions. Bananas can be ripened while they are being transported, or in conventional ripening rooms without opening the containers in which they have been transported. The ripe bananas are less dehydrated and remain in a satisfactory ripened state for longer periods of time.Type: ApplicationFiled: November 20, 2001Publication date: September 12, 2002Inventor: Raymond Clarke
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Publication number: 20020090425Abstract: Packaging of bananas in containers having designed permeabilities to oxygen, carbon dioxide, and ethylene. The containers preferably include a gas-permeable membrane comprising (1) a microporous film, and (2) a polymeric coating on the microporous film. The containers enable storage and/or ripening of bananas under controlled conditions. Using the new containers, bananas can be ripened while they are being transported, or in conventional ripening rooms without opening the bags in which they have been transported. In addition, bananas can be preserved in a satisfactory ripened state for longer periods of time.Type: ApplicationFiled: May 15, 2001Publication date: July 11, 2002Inventor: Raymond Clarke
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Publication number: 20020054969Abstract: Novel gas-permeable membranes which are particularly useful in the packaging of fresh cut fruit and vegetables, and other respiring biological materials. The membranes have an O2 permeability of at least 775,000 ml/m2.atm.24 hrs, a P10 ratio of at least 1.3, and a ratio of CO2 permeability to O2 permeability (R) of at least 1.5, and are made by forming thin polymeric coatings on microporous polymeric films. Preferred coating polymers are side chain crystalline polymers. Preferred microporous films contain inorganic fillers, particularly such films based on ultrahigh molecular weight polyethylene or polypropylene. FIG. 1 illustrates how O2 permeability and R ratio vary for different coating polymers and microporous films.Type: ApplicationFiled: October 12, 2001Publication date: May 9, 2002Inventors: Raymond Clarke, Ray F. Stewart, Valentine Y. Yoon, Donald A. Schultz, Bradley McClary
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Patent number: 6376032Abstract: Novel gas-permeable membranes which are particularly useful in the packaging of fresh cut fruit and vegetables, and other respiring biological materials. The membranes have an O2 permeability of at least 775,000 ml/m2.atm.24 hrs, a P10 ratio of at least 1.3, and a ratio of CO2 permeability to O2 permeability (R) of at least 1.5, and are made by forming thin polymeric coatings on microporous polymeric films. Preferred coating polymers are side chain crystalline polymers. Preferred microporous films contain inorganic fillers, particularly such films based on ultrahigh molecular weight polyetheylene or polypropylene. FIG. 1 illustrates how O2 permeability an R ratio vary for different coating polymers and microporous films.Type: GrantFiled: December 5, 1996Date of Patent: April 23, 2002Assignee: Landec CorporationInventors: Raymond Clarke, Ray F. Stewart, Valentine Y. Yoon, Donald A. Schultz, Bradley McClary
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Patent number: 6210724Abstract: Sealed packages of foodstuffs which are biological materials, particularly fruit, are vented by a temperature-sensitive control unit. The control unit covers an aperture in a wall of the package. The control unit includes a barrier member which is secured over the aperture by a layer of temperature sensitive adhesive, and a force member which lifts the barrier member away from the aperture when an increase in temperature weakens the adhesive. The force member is preferably elastically deformed.Type: GrantFiled: August 23, 1999Date of Patent: April 3, 2001Assignee: Landec CorporationInventors: Raymond Clarke, Andrew W. Larson, Steven James
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Patent number: 5783302Abstract: TPE's which comprise A blocks or B blocks or both A blocks and B blocks, which are crystalline and in which at least a part of the crystallinity result from the presence of crystallizable side chains. Such crystalline blocks are referred to as SCC blocks. TPE's containing SCC A blocks are novel and as such form part of the present invention. The invention also includes processes, compositions, shaped articles and assemblies which make use of TPE's containing SCC A blocks.Type: GrantFiled: May 22, 1995Date of Patent: July 21, 1998Assignee: Landec CorporationInventors: Steven P. Bitler, Raymond Clarke, David A. Kemp, Ray F. Stewart, Valentine Y. Yoon, Robert G. Freelin
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Patent number: 5412035Abstract: Pressure-sensitive adhesive (PSA) compositions containing a crystalline polymeric additive having an M.sub.w of less than 25,000 and a melting point (T.sub.a) greater than 23.degree. C., preferably 30.degree. to 60.degree. , and PSA composites of a backing, preferably a flexible backing, with such a PSA composition coated thereon. The presence of the additive causes the PSA to lose adhesive strength when heated to T.sub.a. The base resin of the PSA is preferably a polyacrylate or a styrene/butadiene copolymer. The additive, which is preferably present in amount 1 to 35%, e.g. 5 to 30%, is preferably a side chain crystallizable (SCC) polymer.Type: GrantFiled: August 12, 1992Date of Patent: May 2, 1995Assignee: Landec CorporationInventors: Edward E. Schmitt, Raymond Clarke, Andrew W. Larson, Steven P. Bitler, Ross S. Tsugita, Donald A. Schultz
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Patent number: 4505542Abstract: Fiber optic waveguides exhibiting a blackout phenomenon can be used for temperature sensing. A temperature sensing waveguide can be used in such applications as maintaining a material within a selected temperature range, freeze protection, viscosity control of liquids in pipelines, leak detection of cryogenic fluids, fire detection, application of heat-recoverable materials, and fluid level detection. Novel waveguides exhibiting blackout at selected temperatures for use in these applications are described. Among the novel waveguides are those having a cladding comprising a polyalkylphenyl siloxane and those having a cladding comprising a cross-linked polymethylalkyl siloxane. Also described are waveguides where only a section of the waveguide exhibits blackout and methods for making such waveguides.Type: GrantFiled: September 23, 1982Date of Patent: March 19, 1985Assignee: Raychem CorporationInventor: Raymond Clarke
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Patent number: 4431264Abstract: A waveguide comprises an optical fiber core and a cross-linked polyfluorosiloxane cladding having a fluorine content of from 1 to 52% by weight. The use of polyfluorosiloxane cladding produces a waveguide having a high numerical aperture.Type: GrantFiled: September 14, 1981Date of Patent: February 14, 1984Assignee: Raychem CorporationInventor: Raymond Clarke
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Patent number: 4417782Abstract: Fiber optic waveguides exhibiting a blackout phenomenon can be used for temperature sensing. A temperature sensing waveguide can be used in such applications as maintaining a material within a selected temperature range, freeze protection viscosity control of liquids in pipelines, leak detection of cryogenic fluids, fire detection, application of heat-recoverable materials, battery charging, and fluid level detection. Novel waveguides exhibiting blackout at selected temperatures for use in these applications are described.Type: GrantFiled: March 31, 1980Date of Patent: November 29, 1983Assignee: Raychem CorporationInventors: Raymond Clarke, Chester L. Sandberg
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Patent number: 4373768Abstract: Fiber optic waveguides exhibiting a blackout phenomenon can be used for temperature sensing. A temperature sensing waveguide can be used in such applications as maintaining a material within a selected temperature range, freeze protection, viscosity control of liquids in pipelines, leak detection of cryogenic fluids, fire detection, application of heat-recoverable materials, and fluid level detection. Novel waveguides exhibiting blackout at selected temperatures for use in these applications are described. Among the novel waveguides are those having a cladding comprising a polyalkylphenyl siloxane and those having a cladding comprising a cross-linked polymethylalkyl siloxane. Also described are waveguides where only a section of the waveguide exhibits blackout and methods for making such waveguides.Type: GrantFiled: March 31, 1980Date of Patent: February 15, 1983Assignee: Raychem CorporationInventor: Raymond Clarke
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Patent number: 4317616Abstract: A waveguide comprises an optical fiber core and a cross-linked polyfluorosiloxane cladding having a fluorine content of from 1 to 52% by weight. The use of polyfluorosiloxane cladding produces a waveguide having a high numerical aperture.Type: GrantFiled: October 9, 1979Date of Patent: March 2, 1982Assignee: Raychem CorporationInventor: Raymond Clarke
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Patent number: 4290668Abstract: A soft polymeric clad glass fiber waveguide with an easy to handle, low-loss end termination is disclosed. Each end termination is formed with a pair of telescopically assembled plastic sleeves. The inner sleeve is heat bondable to the glass core and has a refractive index lower than the glass core. It replaces an end portion of the soft rubbery polymeric cladding. The outer sleeve is heat shrinkable and during the termination procedure functions to compress, center and confine the inner sleeve. After termination, it functions to stiffen the fiber end and strain relieve the junction between the soft polymeric cladding and the stiffer inner sleeve. A method for making such a waveguide termination is disclosed. Also disclosed is an environmentally sealed optical waveguide of related construction.Type: GrantFiled: November 29, 1978Date of Patent: September 22, 1981Assignee: Raychem CorporationInventors: Roger H. Ellis, Raymond Clarke
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Patent number: 4275180Abstract: The invention provides a polymer composition which comprises a crosslinkable or crosslinked blend of an elastomer and a thermoplastic polymer, the elastomer comprising a polymer of ethylene with an ethylenically unsaturated aliphatic ester, and the elastomer and the thermoplastic polymer being substantially free of halogen-containing substituents. The preferred compositions may be used as jacketing materials for wire and cable, as harnessing materials, and in the manufacture of heat recoverable articles having improved oil resistance and thermal ageing properties.Type: GrantFiled: April 7, 1978Date of Patent: June 23, 1981Assignee: Raychem LimitedInventor: Raymond Clarke