Did You Know...
...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!
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| Number | Title | Issue Date |
| 4492090 | Cryostat for NMR magnet A cryostat which is particularly useful for containing superconducting windings for a magnet to provide high strength magnetic fields for NMR imaging comprises a set of nested annular vessels in a suspension system which permits transport of the cryostat ... | 01/08/1985 |
| 4491347 | Cryogenic connector A cryogenic connector which embodies interfitting male and female metal members, each having a portion in sliding engagement in the assembled relation with said portion of the female member having a coefficient of expansion greater than the corresponding ... | 01/01/1985 |
| 4488406 | Coupling for cryogenic liquid transfer into rotating apparatus A liquid coolant transfer device that has a stationary tube fit within a rotating conduit and a threaded throwback seal on the surface of the rotating element is further provided with a seal and bearing device in the form of a washer affixed to the condui... | 12/18/1984 |
| 4462223 | Method and means for preventing coupling freezing Freezing of ice on quick connect couplings during transfer of a cryogenic liquid, such as liquid oxygen, from one container to another is prevented by providing a cup-like shield means encircling the body of the coupling. Cold, dry purge gas from the cont... | 07/31/1984 |
| 4309049 | Rapid disconnect pipe coupling device for cryogenic service A pipe coupling device, especially suitable for use in cryogenic systems, including a plurality of arcuate collar segments each having a radially extending inner groove with cam surfaces to grasp flanges at the ends of a pair of pipes to be coupled togeth... | 01/05/1982 |
| 4289986 | Coolant connecting head for an electric machine with a superconducting rotor winding A coolant connecting head for an electric machine which contains a rotor with a superconducting winding, the head including a device for feeding a coolant from a non-rotating coolant line part into a rotating coolant line part, with at least one sealing d... | 09/15/1981 |
| 4275565 | Transfer device for a cryogenic medium A device for the transfer of a cryogenic medium between a fixed and a rotating conducting tube with a sealing device having a corotating sealing element to seal off an annular space between a fixed and a rotating section of conducting tube, in which the s... | 06/30/1981 |
| 4250713 | Apparatus for conducting liquid helium between a transporter and an electric machine An apparatus for providing selective fluid communication between a helium transporter and an electric machine with superconductive exciter windings includes a coupling of the transporter which is mated to an undriven end of the shaft of the electric machi... | 02/17/1981 |
| 4219224 | Cryogenic pipeline system A pipeline system particularly designed for transporting liquefied natural gas (LNG) comprising a plurality of pipe sections connected together as by welding, each section having an outer pipe or jacket and an inner liquid carrier pipe which is in compres... | 08/26/1980 |
| 4207745 | Device for helium transfer between rotating and non-rotating members A device for transferring helium between rotating and non-rotating members includes first and second transfer reeds and a cylindrical sleeve. The cylindrical sleeve is provided between the first and second reeds and extends substantially throughout the re... | 06/17/1980 |
| 4162093 | Heat-insulated pipe-lines For use in heat-insulated pipe-lines produced from at least two heat-insulated pipe units joined end to end, each heat-insulated pipe unit consisting of a pipe surrounded over the greater part of its length by at least one layer of heat-insulating foam ma... | 07/24/1979 |
| 4139220 | Swivel joint sealing system A fluid conducting swivel joint is disclosed which has a sealing system effective against the leakage of fluids of extreme temperature. The joint consists of two housings mounted for relative rotation about an axis, the housings having a fluid passage the... | 02/13/1979 |
| 4108476 | Precompressed piping system for handling cryogenic fluid A piping system comprising an inner pipe for carrying fluid and an outer pipe forming a thermal insulation jacket for the inner pipe. The pipe line is formed in sections which are joined together by means of flange members in a manner so as to provide lon... | 08/22/1978 |
| 4099746 | Equalizing arrangement for a low temperature line An equalizing arrangement for a low temperature line having at least one rigid inner tube used for the conduction of a cryogenic medium which contains at least one tubular compensating element for the equalization of length changes in which an expansion d... | 07/11/1978 |
| 4099726 | Packing for cryogenic seal joint Method for preventing the escape of liquid nitrogen and nitrogen gas from an apparatus for treating materials with high energy ionizing radiation while the materials are being maintained at temperatures below about -40° C. with liquid nitrogen comprising... | 07/11/1978 |
| 4060263 | Conduit for conveying a fluid, the temperature of which is different from the surrounding temperature A conduit for conveyance of a fluid and especially liquefied natural gas and comprising an internal circulation pipe for said fluid surrounded with a sheath of insulating material protected by an outer rigid covering, said sheath comprising several fluid-... | 11/29/1977 |
| 4046407 | Elongated cryogenic envelope An elongated cryogenic envelope is comprised of a plurality of sections each including an outer tube and a coaxial inner tube spaced therefrom by a support means. The outer tubes of each section are joined together to form a continuous outer tube. The inn... | 09/06/1977 |
| 4036618 | Flexible cryogenic envelope A superconducting power transmission line is comprised of sections of rigid cryogenic envelope and sections of flexible cryogenic envelope. The rigid sections are comprised of rigid inner and outer tubes having a refrigeration shield located in a vacuum c... | 07/19/1977 |
| 4036617 | Support system for an elongated cryogenic envelope An elongated cryogenic envelope includes a support-spacer for locating a plurality of refrigeration tubes at selected radial and circumferential locations within a vacuum chamber formed between inner and outer coaxial tubes. The support-spacer includes a ... | 07/19/1977 |
| 4025091 | Conduit system A conduit system including conduit units which are interconnected by coupling units during field installation. The conduit units include a pipe, a pipe insulating body, a conduit jacket around the insulating body and conduit sealing members at opposite en... | 05/24/1977 |
| 4018059 | Cryogenic fluid transfer joint employing gaseous seals Cryogenic liquid coolant is transferred from a stationary liquefier through a bayonet to the rotor of a superconducting generator using a cryogenic fluid transfer joint cantilevered on the collector end of the rotor. Pressure of the boil-off coolant is em... | 04/19/1977 |
| 4011732 | Heat-stationed bayonet connector for cryogenic fluid lines A heat-stationed bayonet connector suitable for connecting liquid cryogen sources and refrigeration loads to a cryogenic fluid transfer line or for connecting components such as flexible sections, etc., into the transfer line. The incorporation of a cold ... | 03/15/1977 |
| 4010965 | Pipe joint for connecting different kinds of metallic pipes A pipe joint for connecting an aluminum pipe to a stainless steel pipe, where the joint consists of washer layers of aluminum, titanium, nickel and stainless steel in this order, each being tightly bonded and integrated in the axial direction of the pipe ... | 03/08/1977 |
| 3991587 | Method of supplying cryogenic fluid through a transfer joint employing a stepped bayonet relative-motion gap Cryogenic liquid coolant is transferred from a stationary liquefier through a bayonet to a conduit rotating with the rotor of a superconducting generator, using a cryogenic fluid transfer joint attached to the collector end of the rotor. A relative-motion... | 11/16/1976 |
| 3992169 | Refrigerated cryogenic envelope An elongated cryogenic envelope including an outer tube and an inner tube coaxially spaced within said inner tube so that the space therebetween forms a vacuum chamber for holding a vacuum. The inner and outer tubes are provided with means for expanding o... | 11/16/1976 |
| 3991588 | Cryogenic fluid transfer joint employing a stepped bayonet relative-motion gap Cryogenic liquid coolant is transferred from a stationary liquefier through a bayonet to a conduit rotating with the rotor of a superconducting generator, using a cryogenic fluid transfer joint attached to the collector end of the rotor. A relative-motion... | 11/16/1976 |
| 3988029 | Cryogenic fluid coupling device A coupling device for cryogenic fluids which allows passage of liquid and vapor simultaneously through one coaxially arranged assembly. Principle features include low heat transfer insulation integral with the coupling and the ability to connect and disco... | 10/26/1976 |
| 3986341 | Low heat-leak cryogenic envelope A plurality of cryogenic envelope sections are joined together to form a power transmission line. Each of the sections is comprised of inner and outer tubes having multilayer metalized plastic spirally wrapped within a vacuum chamber formed between the in... | 10/19/1976 |
| 3984059 | Liquid handling In the context of the handling of cryogenic materials, particularly liquefied natural gas (LNG), in marine loading systems, coaxial ducting links various plant sites of the system to provide in the one link both liquid transfer ducting and a return ductin... | 10/05/1976 |
| 3951418 | Moving captive seal construction usable under high temperature and cryogenic conditions A captive sealing assembly including a sealing mass of deformable material and first and second retainers on opposite sides of the sealing mass. The sealing assembly is adapted for use in a seal groove at least partially defined by first and second surfac... | 04/20/1976 |
| 3945215 | Low-loss, fluid helium transfer line suitable for extended lengths A helium transfer line adapted to be constructed in extended lengths and to carry liquid helium and/or 4.2°K helium gas with minimum loss of refrigeration capacity due to heat leaks into and through the line. The transfer line, in its basic structure, co... | 03/23/1976 |
