"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 5593274 | Closed or open circuit cooling of turbine rotor components A rotor cooling circuit includes a cooling medium supply reservoir for supplying cooling medium to a plurality of axial passages through the turbine wheel and spacer disc rims. A passageway communicates cooling medium from the reservoir for flow in series... | 01/14/1997 |
| 5542715 | Metal expansion joint and vibration absorber apparatus for pipe systems The apparatus includes a first protection sleeve element having a substantially radially upturned annular end portion, a second protection sleeve element having also a substantially radially upturned end portion and a bellows. The bellows ends at both sid... | 08/06/1996 |
| 5511828 | Flexible joint for automobile exhaust pipe A flexible joint for an automobile exhaust system includes a flexible bellows for sealing the communication between the engine and the tail pipe with first and second flanges fixed to the respective members and interconnected by coupling shafts that are f... | 04/30/1996 |
| 5480194 | Metal expansion joint vibration absorber apparatus for pipe systems The apparatus consists of three single integral sheet metal structures interconnected by weldings. The first structure is the bellows element. The second structure is an integral formed sheet metal part which forms the one flange element and simultaneousl... | 01/02/1996 |
| 5443290 | Floating ring expansion joint liner seal An expansion joint includes first and second conduits connected by an expansion joint element. The second conduit has a liner portion which protrudes into the first conduit, so that the expansion joint element, first conduit, second conduit and liner port... | 08/22/1995 |
| 5437479 | Flexible connection arrangement for the two pipe portions particularly for motor vehicle exhausts In a flexible connection arrangement for two pipe portions having a metallic bellows which is connected axially on either side in a gastight manner with connection pieces, the sides of the connection pieces facing the bellows are provided with radially wi... | 08/01/1995 |
| 5358287 | Jointed pipe connection Jointed pipe connections are used for axial, angular and lateral oscillation decoupling of tubular pipe segments. A jointed pipe provided for connection with a first pipe segment has an annular fold, against which a pressed wire ring rests respectively on... | 10/25/1994 |
| 5346263 | Flexible line element with thermal insulation A device for connecting pipelines in a flexible gas-tight manner has a bellows provided at each end with a pipe union which can be connected to a pipeline. The device is characterized in that an insulating cassette in the form of a double tube filled with... | 09/13/1994 |
| 5193856 | Pipe connector A pipe connector comprises a pipe connector body, said pipe connector body including: a first portion of a diametrically larger inner cross section adjacent a mouth of said connector and a second portion of a diametrically smaller inner cross section exte... | 03/16/1993 |
| 5145215 | Flexible coupler apparatus A flexible coupler apparatus for joining successive lengths of pipe in an exhaust system for a vehicle. An inner sleeve member is concentrically received by an outer sleeve member. A substantially porous, non-sealing, vibration absorbing spacer member is ... | 09/08/1992 |
| 4685703 | Expansible and contractible duct A longitudinally expansible and contractible duct characterized by the employment of a pair of expansible and contractible bellows protected by internal, thermally insulated, baffles which are slidably secured to the external shell members of the duct to ... | 08/11/1987 |
| 4577659 | Coupling arrangement for pipe conduits conducting a medium containing radioactive substances The invention is directed to a coupling arrangement for pipe conduits thrh which a medium containing radioactive or toxic substances is conveyed. The coupling arrangement includes a first coupling unit mounted on the end of a first one of the pipe condui... | 03/25/1986 |
| 4475341 | Exhaust manifold device for engines An exhaust manifold device for an engine including at least one pair of cylinders arranged substantially in the form of a V and a turbosupercharger driven with exhaust gases of the cylinders to supply compressed air thereto. The exhaust manifold device co... | 10/09/1984 |
| 4299414 | Expansion joint An expansion joint for ducts for high temperature gases has upstream and downstream members to be secured to spaced apart ends of corresponding duct sections. Each member has an outer flange, the outer flanges disposed towards each other and having a fabr... | 11/10/1981 |
| 4283078 | Flexible joint protector A Flexible Joint Protector for use with steam pipes of the same or different diameters comprise multiple bellows where the bellows are of different diameters and arranged one within another and have sleeves on their outer sides. Clamps are used to secure ... | 08/11/1981 |
| 4278277 | Structure for compensating for different thermal expansions of inner and outer concentrically mounted pipes The annular space between inner and outer coaxially-mounted pipes is sealed by a bellows diaphragm with a cylindrical surface corrugated in the longitudinal direction formed in and at one end of said annular space, wherein one end of said bellows is circu... | 07/14/1981 |
| 3997194 | Compensator connection for tuyere stock A hermetic expansion joint employing an external bellows and means positioned within the bellows for limiting the relative axial displacements of the conduits being joined in both compression and tension. The expansion joint device has, located within the... | 12/14/1976 |