Wendell W Moyer from Sonoma, CA

Conductive Polymer Compositions, And To Devices Comprising Such Compositions
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US Patent:

43886078, Jun 14, 1983
Filed:

Oct 17, 1979
Appl. No.:

6/085679
Inventors:

Lester T. Toy - San Francisco CA
Wendell W. Moyer - Atherton CA
Bernard J. Lyons - Atherton CA
David A. Horsma - Palo Alto CA
Assignee:

Raychem Corporation - Menlo Park CA
International Classification:

H01B 104
H01C 713
US Classification:

338 22SD
Abstract:

Conductive polymer compositions which have improved voltage stability and which preferably exhibit PTC behavior. The compositions comprise a carbon black dispersed in a crystalline copolymer of an olefin and at least 10% by weight of an olefinically unsaturated comonomer containing a polar group. The carbon black has a particle size greater than 18 millimicrons, preferably greater than 30 millimicrons, a d-spacing greater than 360 and a surface area which is less than 1. 2S+e. sup. S/50 where S is the DBP absorption of the carbon black. The carbon black is preferably present in amount at least 15% by weight of the composition. Particularly useful devices including such compositions are self-regulating heaters.

Ptc Compositions And Devices Comprising Them
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US Patent:

45348898, Aug 13, 1985
Filed:

Feb 22, 1983
Appl. No.:

6/468768
Inventors:

Peter H. van Konynenburg - Mountain View CA
Bernard J. Lyons - Atherton CA
Robert Smith-Johannsen - Portola Valley CA
Wendell W. Moyer - Atherton CA
Assignee:

Raychem Corporation - Menlo Park CA
International Classification:

H01B 106
US Classification:

252511
Abstract:

Novel conductive polymer compositions which exhibit useful PTC behavior are produced by cross-linking processes. By correlating the polymer, the conductive filler dispersed therein, and the cross-linking conditions, PTC compositions having desired resistance/temperature characteristics can be prepared. In particular the cross-linking can be carried out so as to provide compositions having a switching temperature around the cross-linking temperature. The invention is applicable to both elastomeric and thermoplastic polymers, and provides for the first time a method of making PTC compositions exhibiting useful PTC behavior from elastomers.

Curable Compositions And Methods For Use In Forming Optical Waveguide Structures
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US Patent:

51366827, Aug 4, 1992
Filed:

Apr 15, 1991
Appl. No.:

7/686057
Inventors:

Wendell W. Moyer - Atherton CA
Patrick M. Martens - Pleasanton CA
Stephen F. Powell - Woodside CA
Assignee:

Raychem Corporation - Menlo Park CA
International Classification:

G02B 600
US Classification:

385141
Abstract:

The present invention provides polymerizable compositions which may be cured with ultraviolet light to form polymer compositions which are especially useful as channel optical waveguides. In particular, they exhibit stability at elevated temperatures such as occur in, for example, reflow soldering.

Expansive Cement And Agent Therefor
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US Patent:

42059941, Jun 3, 1980
Filed:

Sep 15, 1978
Appl. No.:

5/942790
Inventors:

Wendell W. Moyer - Atherton CA
Robert Smith-Johannsen - Incline Village NV
Assignee:

Raychem Corporation - Menlo Park CA
International Classification:

C04B 702
US Classification:

106 97
Abstract:

Expansive cement compositions and novel expansion agents containing free lime for use in such compositions. The expansion agents are prepared by heating lime of particle size less than 250 microns in an atmosphere comprising water vapor at 100. degree. to 400. degree. C. or carbon dioxide at 350. degree. to 850. degree. C. , or by heating a partially hydrated lime at a temperature of at least 100. degree. C. The encapsulated limes produced in this way are useful as expansion agents in hydratable cement compositions, the amount thereof generally being less than 30%, preferably 3 to 10%, based on the weight of the cement and additive. Cement compositions containing the novel expansion agents are useful in a wide variety of uses where shrinkage of the composition on drying has to be prevented or reduced.

Thermochromic Composition
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US Patent:

47433981, May 10, 1988
Filed:

Apr 22, 1986
Appl. No.:

6/855026
Inventors:

Andrew V. Brown - San Jose CA
Wendell W. Moyer - Atherton CA
Assignee:

Raychem Corporation - Menlo Park CA
International Classification:

C09K 300
C09D 508
US Classification:

2524081
Abstract:

A temperature indicating composition is provided for use on recoverable articles so that heating to produce recovery or to activate a heat-activatable sealant can be monitored. The composition comprises a thermochromic colorant in a binder and an activator that causes the thermochromic colorant to change color at a temperature lower than the temperature at which the colorant would change temperature in the absence of the activator. The thermochromic colorant can be folic acid and the activator can be an acid that has a pK of less than 4. 2.

Optical Fiber Adhesive Joint Tube
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US Patent:

47461896, May 24, 1988
Filed:

Oct 16, 1985
Appl. No.:

6/787951
Inventors:

John P. Arrington - San Mateo CA
Nelson M. Shen - San Jose CA
Wendell W. Moyer - Atherton CA
David R. Myers - Mountain View CA
David E. James - Pasadena CA
Assignee:

Raychem Corporation - Menlo Park CA
International Classification:

G02B 638
US Classification:

350 9621
Abstract:

An article suitable for use in the adhesive joining of two optical fibers with low light loss comprises a tubular container an inner surface of which is coated with a release agent and/or is composed of an inherently releasing material, which is larger in cross-section at the ends than at a central region, the smaller central region being where the ends of the fibers are joined.

Benzotrifluoride Fuel Additive For Internal Combustion Engines
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US Patent:

39472574, Mar 30, 1976
Filed:

Apr 17, 1974
Appl. No.:

5/461528
Inventors:

Robert Smith-Johannsen - Portola Valley CA
Wendell William Moyer - Atherton CA
Assignee:

Raychem Corporation - Menlo Park CA
International Classification:

C10L 120
US Classification:

44 79
Abstract:

Low boiling aryl fluoroalkane additives, such as benzotrifluoride, are utilized as a fuel additive for internal combustion engines. The additive volatilizes in the combustion chamber thereby giving a smoother running engine, prolonged spark plug life and a reduced octance requirement for high compression engines.

Protection Of Cable Splice
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US Patent:

46700692, Jun 2, 1987
Filed:

Nov 25, 1985
Appl. No.:

6/801505
Inventors:

Christian A. M. Debbaut - Cary NC
Norman Gac - Palo Alto CA
Eugene F. Lopez - Sunnyvale CA
Wendell W. Moyer - Atherton CA
David Terrell - Fuquay-Varina NC
Patrick K. Tsou - Halfmoon Bay CA
Assignee:

Raychem Corp. - Menlo Park CA
International Classification:

H01B 1306
US Classification:

156 48
Abstract:

A splice between two multiconductor cables is protected from ingress of water by a closure which is filled with an expanding foam sealant which provides pressure inside the closure sufficient to force the sealant into the interstices of the splice and the interstices between the conductors in the cable, which pressure is retained in the closure until the sealant cures or hardens.