| Patent Number |
Title Of Patent |
Date Issued |
| 5530255 |
Apparatus and methods for electron beam irradiation |
June 25, 1996 |
| An electron beam accelerator has an accelerator tube consisting essentially of metal and ceramic components which are fused directly to each other and a transmission window generally rectangular in shape when viewed in the direction of the electron beam and is convex towards the vacuum c |
| 5416440 |
Transmission window for particle accelerator |
May 16, 1995 |
| A particle accelerator has a transmission window formed of a thin homogeneous foil having a predetermined thickness and having a predetermined length, and when laid fiat as a sheet having a transverse dimension. The window is formed to have a locus of a curve in cross section along t |
| 4899157 |
Leading edge detector/reply quantizer |
February 6, 1990 |
| An improved Leading Edge Detector/Pulse Quantizer (LED) for use in a pulse code communications system. A prior LED included three shift registers for storing in relative time order, according to the time of reception of video pulse signals by an associated receiver, (a) pulse leading edg |
| 4775778 |
PTC compositions and devices comprising them |
October 4, 1988 |
| 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 c |
| 4654511 |
Layered self-regulating heating article |
March 31, 1987 |
| A self-regulating heating article comprising a layer of material exhibiting a positive temperature coefficient of resistance (PTC) and said PTC layer having at least partially contiguous therewith at least one layer of constant wattage output material. The article operates such that when |
| 4543474 |
Layered self-regulating heating article |
September 24, 1985 |
| A self-regulating heating article comprising a layer of material exhibiting a positive temperature coefficient of resistance (PTC) and said PTC layer having at least partially contiguous therewith at least one layer of constant wattage output material. The article operates such that when |
| 4534889 |
PTC Compositions and devices comprising them |
August 13, 1985 |
| 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 c |
| 4388607 |
Conductive polymer compositions, and to devices comprising such compositions |
June 14, 1983 |
| 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 pol |
| 4330703 |
Layered self-regulating heating article |
May 18, 1982 |
| A self-regulating heating article comprising a layer of material exhibiting a positive temperature coefficient of resistance (PTC) and said PTC layer having at least partially contiguous therewith at least one layer of constant wattage output material. The article operates such that when |
| 4198310 |
High voltage insulating compositions containing organic polymerizable phosphorus compounds |
April 15, 1980 |
| New high voltage insulating compositions are disclosed. The compositions comprise a polymer (e.g. a polysiloxane, epoxide resin or a polymer of one or more olefins or substituted olefins), an antitracking additive (e.g. an alumina hydrate), and certain organic polymerizable phosphorus-co |
| 4188276 |
Voltage stable positive temperature coefficient of resistance crosslinked compositions |
February 12, 1980 |
| The voltage stability of crosslinked compositions of fluorocarbon polymers and conductive carbon black that exhibit a positive temperature coefficient of resistance can be improved by incorporating into the composition prior to its crosslinking an effective amount of a polymerizable |
| 4177376 |
Layered self-regulating heating article |
December 4, 1979 |
| A self-regulating heating article comprising a layer of material exhibiting a positive temperature coefficient of resistance (PTC) and said PTC layer having at least partially contiguous therewith at least one layer of constant wattage output material. The article operates such that when |
| 4148747 |
Antioxidant comprising a hydroxy aromatic compound containing sulfur and an organic phosphonate |
April 10, 1979 |
| An improved antioxidant composition, especially suitable for irradiated or fire-retardant plastics, comprising a mixture of a hydroxy aromatic compound containing sulfur and organic phosphonate compounds. |
| 4136055 |
Compositions of antioxidants of reduced volatility |
January 23, 1979 |
| For incorporation in normally oxidizable polymers, polymeric antioxidants characterized by repeating hindered bisphenolic units, the average number of said units per polymeric chain in said composition being from about 2 to 10, preferably about 2 to 7, most preferably about 2 to 4. The |
| 4052279 |
Hydroxy aromatic compound containing sulfur and an organic phosphonate as polymer antioxidant |
October 4, 1977 |
| An improved antioxidant composition, especially suitable for irradiated or fire-retardant plastics, comprising a mixture of a hydroxy aromatic compound containing sulfur and organic phosphonate compounds. |
| 4036719 |
Irradiatable polymer composition with improved oxidation resistance |
July 19, 1977 |
| An irradiation cross-linked polymer composition having improved oxidation resistance is disclosed. Improved oxidation resistance is obtained by utilizing an organic phosphite which is relatively insoluble and unreactive under irradiation conditions so as to be unaffected by the irrad |
| 4009147 |
Composition of antioxidants of reduced volatility |
February 22, 1977 |
| For incorporation in normally oxidizable polymers, polymeric antioxidants characterized by repeating hindered bisphenolic units, the average number of said units per polymeric chain in said composition being from about 2 to 10, preferably about 2 to 7, most preferably about 2 to 4. The |
| 3986981 |
Antioxidants of bisphenolic polymers |
October 19, 1976 |
| For incorporation in normally oxidizable polymers, polymeric antioxidants characterized by repeating hindered bisphenolic units, the average number of said units per polymeric chain in said composition being from about 2 to 10, preferably about 2 to 7, most preferably about 2 to 4. The |
