Abstract: A power coupling assembly for superconducting magnets includes a conduit with insulating tubes around each power lead, with the tubing passing through a plug at the upper end of the conduit and extending only part way to the lower end. Cryogen gas flowing from the magnet chamber into the conduit is forced to flow through the multiple tubes to cool the leads.
Abstract: A protective pouch (26) for storing eyeglasses (24) or small objects such as keys or money that can be rolled up into a compact configuration (44). The pouch is provided with an eyeglass strap (21) with ends (20) capable of releasably attaching to the eyeglass arms (22) so that it is always available for use and cannot be lost. The two ends of the strap pass through holes (25) into the interior cavity (46) of the pouch, pass out the open end (48) of the pouch and are attached to the eyeglass arms. The pouch can slide along the strap to adjust the strap length for tensioning the eyeglasses to a one's head. A cover flap (30) is provided to fasten the pouch in its compact configuration or to close off the pouch opening. When the eyeglasses and strap are stored inside the pouch, the entire package can be worn on one's belt (50) from a loop (28) provided.
Abstract: A detachable seal assembly for a pressurized constant process oven through which a flat filament is passed and which seals the oven against the environment surrounding the oven including a resilient aperture formed by opposed flaps which extend from a transverse portion in the direction of movement of the filament to sandwich the filament. Compression is provided to the seal assembly such that the friction of filament movement tends to stretch the flaps to seal the resilient aperture about the filament. The seal assembly includes a clamp to enable ready replacement to minimize process down time during replacement.
Abstract: Apparatus and method for forming long lengths of laminated superconducting tape by passing three foils over idler pulleys, through a solder bath and between pinch rollers having a portion which extend above the solder bath to enable cleaning of the pinch rollers during the formation of the superconducting tape with means to adjust the pressure applied by the pinch rollers, and to adjust the laminated tape takeup tension independently from the foil process tension.
Type:
Grant
Filed:
October 28, 1992
Date of Patent:
April 5, 1994
Assignee:
General Electric Company
Inventors:
Christopher G. King, Gerhard S. Kobus, Anthony Mantone, Malvin L. Dennis, Frank D. Shaffer, Richard A. Stephens, Neil G. Fiddes
Abstract: An adjustable alignment assembly for a cryogen venting system for a superconducting magnet including a radially adjustable floating flange connection with a cryogenic seal to enable precise alignment of the cryostat vent pipe with the ceiling vent pipe of the room in which the superconducting magnet is installed.
Type:
Grant
Filed:
June 29, 1992
Date of Patent:
March 8, 1994
Assignee:
General Electric Company
Inventors:
Daniel C. Woods, William S. Stogner, Robert R. Carey
Abstract: An open architecture Magnetic Resonance Imaging Magnet with a pair of spaced annular superconducting magnet assemblies utilizing a cantilevered main magnet coil and correction magnet coil within each assembly.
Abstract: Power couplings are provided from outside the shell of a superconducting magnet through the intervening space and through the cryogen pressure vessel to the magnet coils within the vessel. The multi-pin shim magnet connector is replaceable without cutting the vessel open and the shim and main magnet main coil connectors include central apertures through which cryogen boil-off gas is flowed before venting to cool the connectors and reduce boil-off.
Type:
Grant
Filed:
May 11, 1992
Date of Patent:
March 1, 1994
Assignee:
General Electric Company
Inventors:
Daniel C. Woods, William S. Stogner, David R. Turner
Abstract: A method of forming a long 100-inch low resistance lap joint suitable for joining magnet coils in a superconducting magnet assembly on the magnet drum, which is accomplished by forming a flat solder sandwich within a groove on the drum and moving a heat source along the lap joint with controlled temperature, pressure and rotational speed of the drum.
Type:
Grant
Filed:
August 3, 1992
Date of Patent:
October 26, 1993
Assignee:
General Electric Company
Inventors:
Bu X. Xu, Granville G. Ward, Winfield S. DeWitt, III, Gerhard S. Kobus, Craig C. Duer, Jimmy L. Turner
Abstract: A cantilevered trapezoidal-toroidal structure is provided in an active magnetic shielding system for a superconducting magnet to support the bucking magnet coils in spaced relationship to the main magnet coils.
Type:
Grant
Filed:
August 3, 1992
Date of Patent:
August 17, 1993
Assignee:
General Electric Company
Inventors:
Oluwasegun O. Ige, John J. Wollan, Yannis P. Tsavalas