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| Number | Title | Issue Date |
| 4557693 | Human identification system A device and method for applying and retaining a unique data carrier to a tooth surface of an individual. The data carrier comprises a thin sheet of material having a data format unique to the individual. This data carrier is attached to the surface of th... | 12/10/1985 |
| 4187092 | Method and apparatus for providing increased thermal conductivity and heat capacity to a pressure vessel containing a hydride-forming metal material A method and apparatus are disclosed for providing increased thermal conductivity and heat capacity to a pressure vessel containing a hydride-forming metal material which is capable of absorbing and storing relatively large amounts of hydrogen gas. An elo... | 02/05/1980 |
| 4185979 | Apparatus and method for transferring heat to and from a bed of metal hydrides A method and apparatus are disclosed for transferring heat to or from metal hydrides contained in storage containers as hydrogen gas is being charged to or withdrawn from the storage containers, wherein the hydrogen gas being charged to or withdrawn from ... | 01/29/1980 |
| 4182400 | Countercurrent heat transfer apparatus and method Apparatus for transferring heat between solid particles includes an inclined cylindrical drum in which is disposed a helical auger. The outer lip of the auger, which is maintained in contact with the interior wall of the drum, is curved in the upward dire... | 01/08/1980 |
| 4182128 | Underground pumped liquid energy storage system and method Disclosed is a system and method for producing electrical power during peak power demand periods and for, in effect, storing electrical power or energy during low power demand periods. Two or more cavities are provided in an underground salt dome or other... | 01/08/1980 |
| 4181909 | Method and appratus for initializing remote data communication equipment Apparatus associated with a remote communication station responds to predetermined sequences of characters received over a communication channel by initializing or conditioning equipment located at the remote station. The predetermined sequences include a... | 01/01/1980 |
| 4073216 | Valve control apparatus for rotary engines Valve control apparatus adapted for use in a rotary engine or pump having a cylinder block rotatable about an axis and including a plurality of cylinders and corresponding pistons radially arranged about the axis, a plurality of valves each disposed in a ... | 02/14/1978 |
