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Magician Harry Houdini patented a "Diver's Suit" enabling the wearer to "quickly divest himself of the suit while being submerged and to safely escape and reach the surface of the water."
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| Number | Title | Issue Date |
| 5281975 | Base support for movable antenna A base support for supporting, positioning and securely maintaining a desired position of a communications dish antenna includes a non-rotatable worm gear having radially outwardly extending teeth and a motor driven worm having a continuous helical tooth ... | 01/25/1994 |
| 5255042 | Top-drop film feed system A film processor is provided with a top-drop film system which, in the perferred embodiment includes a slot in the top housing cover of the processor, an inclined-plane film guide directly beneath the slot, and a pair of opposing rollers positioned at the... | 10/19/1993 |
| 5205893 | Method and apparatus for attaching lagging material to a roller A method and apparatus for attaching a cover (C) to a roller (R) or other device to be covered. A tube (15), cylindrical section, or other shape of cover material is inserted in a fixture (3) and each end of the tube is sealed to the fixture. A wall (21) ... | 04/27/1993 |
| 5117089 | Structural support for hermetic terminal assembly heater apparatus A heating apparatus for heating a fluid medium confined in a hermetically sealed housing chamber including a terminal assembly having a body member sealed in the housing chamber wall with pins extending in sealed relation therethrough to provide electrica... | 05/26/1992 |
| 5107621 | Hydroculture growing system with improved light/water meter A hydroponic planter includes an outer container and an inner liner. The liner includes a central inverted cup-shaped reservoir for a liquid nutrient solution. The outer wall of the liner includes slots extending substantially above the height of the rese... | 04/28/1992 |
| 5085753 | Water purifier A water purifier has a buoyant housing for supporting a purification cell below the water's surface and for supporting a solar cell array for providing power for the purification cell. The purification cell preferably has a solid cylindrical anode and a c... | 02/04/1992 |
| 5078712 | Tissue manipulator for use in vitreous surgery combining a fiber optic endoilluminator and membrane pic A surgical instrument for use in penetrating and working in the vitreous humor of an eye comprises a finger grip member and a rigid needle extending from the finger grip member, with a single continuous fiber optic member extending from a distal end of th... | 01/07/1992 |
| 5069309 | Rolling tower scaffold and method and tooling apparatus for manufacturing the same Climbing apparatus including a rolling tower support platform, and method and tooling for the same wherein one of two spaced double walls of each of opposed tower rails of a tower ladder is snugly gripped by detents formed on the end portions of spaced ra... | 12/03/1991 |
| 5070265 | Compressed spacer for permanent retention of electrical motor terminals A dynamoelectric machine (M) has a terminal board (T) on which electrical connections are made by attaching various electrical elements (1, 5) together so, that an electrical connection is made between them. A fastener 13 is used to physically make the at... | 12/03/1991 |
| 5067845 | Clamp-hub A clamp-hub (1) for use in attaching a component (A) to a machine. A clamp-hub body (3) has a first section (5) of one thickness and a second section (7) of a different thickness. The second body section is attachable to the component. The body has a long... | 11/26/1991 |
| 5066638 | Superconducting motor with multiple winding rotor A superconducting motor (1) comprises a stator (3) and a rotor (5), both of which employ superconductive windings. The rotor includes two sets of windings, a large rotor winding (13) and a small rotor winding (15). The windings are connected to form a cur... | 11/19/1991 |
| 5063805 | Compound miter saw An improved compound miter saw is disclosed as having a selectively rotatable turntable mounted on a supporting frame and a power driven saw blade pivotally mounted on the turntable between a lowered full cut position and a raised full retract position. T... | 11/12/1991 |
| 5063808 | Linear actuator improvement to prevent "back driving" An improvement (17) for a linear actuator mechanism (1) includes a brake mechanism (19) acting on an intermediate gear (39) of a gear mechanism (21) of the actuator. The brake mechanism includes a spring washer (61) installed on a gear shaft (53) and thru... | 11/12/1991 |
| 5063858 | Covered hopper railway car with drop bottom doors and substantially vertical outlets to maximize discharge area A covered hopper railway car (10) for transporting difficult-to-unload ladings includes a pair of parallel, spaced apart side walls (12a, 12b) and opposed end walls (14a, 14b). A roof (16) covers the car and has an opening (18) therein for loading lading ... | 11/12/1991 |
| 5063353 | Method for accurate measurement of transmission line impedance by correcting gross impedance for the "dribble-up" effect A method for measuring the impedance of a transmission line. The length and D.C. loop resistance of the line are measured. A pulse is transmitted along the line, the pulse having a duration greater than the time required for it to propogate from its sourc... | 11/05/1991 |
| 5062490 | Kelly bar coupling In an earth drill rig having a drive with a drive stud projecting from it, a Kelly bar, connected to drive a rotary table, and a coupling device associated with the Kelly bar and drive stud for selectively connecting the drive stud to a lower end of the K... | 11/05/1991 |
| 5062835 | Aspirator device for body fluids An aspirator device for removing body fluids is disclosed as having a fluid collector with an air-type chamber that communicates with a first sealed passageway in an elongated flexible tube to be inserted in a body cavity for fluid communication with body... | 11/05/1991 |
| 5061520 | Particle enrobing process and apparatus Particles are enrobed or coated by introducing, to a spinning cup having an outwardly upwardly extending inner surface with an upper edge, a liquid coating material and particles of greater density than the coating material. The coating material and parti... | 10/29/1991 |
| 5060426 | Building structure An easily transported and erected building structure formed in part as a vault made of interlocking voussoirs in the form of identical insulated boxes. Permanent exterior joint connectors prestress the voussoirs for strength. Easily installed interior cli... | 10/29/1991 |
| 5061220 | Variably tensionable diaphragm game call A diaphragm type game call has at least one diaphragm mounted in a frame in such a way that the diaphragm cooperate with a part or parts of the frame to permit the tension of the diaphragm to be varied selectively, as by fixing the initial effective lengt... | 10/29/1991 |
| 5061405 | Constant humidity evaporative wicking filter humidifier A constant humidity evaporative wicking filter humidifier is disclosed as having a water reservoir tank for holding a supply of water. The water reservoir tank is mounted on a supporting base and is constructed to dispense water as needed into a catch bas... | 10/29/1991 |
| 5060901 | Whole house fan A whole house, direct drive fan is disclosed wherein the fan motor is secured directly to a single joist by means of a motor mounting bracket. A venturi housing is separately secured directly to the joist on which the fan motor is mounted.... | 10/29/1991 |
| 5059387 | Method of forming shaped components from mixtures of thermosetting binders and powders having a desired chemistry Shaped parts are formed from a powder having the desired chemistry of the finished part by mixing the powder with a thermosetting condensation resin that acts as a binder. The resin may be partially catalyzed, or additives or surfactants added to improve ... | 10/22/1991 |
| 5059296 | Portable self-contained solar powered water purifier A portable self-contained solar powered water purifier for swimming pools, spas, and other bodies of water is disclosed. The purifier includes a buoyant housing for supporting a solar cell array above the surface of water to be treated and a purification ... | 10/22/1991 |
| 5058763 | Waste separation apparatus A waste separation container for selectively separating and storing waste material includes a plurality of thin-walled flexible bags supported by a closure or frame engaging an upper part of the container. In embodiments that include a central partition i... | 10/22/1991 |
| 5059072 | Cushioned retractable hitch for railway cars A trailer hitch (1) for use on a railcar (C) is movable between an erect position and a retracted position. A first strut (9) has its lower end pivotally mounted to the railcar. A second strut (25) has its lower end movable in a horizontal direction relat... | 10/22/1991 |
| 5058197 | Heater apparatus for fluid medium in a hermetically sealed chamber A heating apparatus for heating a fluid medium confined in a hermetically sealed housing chamber including a terminal assembly having a body member sealed in the housing chamber wall with pin means extending in sealed relation therethrough to provide elec... | 10/15/1991 |
| 5057783 | Automatic impedance matching Apparatus (1) for performing an electrical test on a cable (3) used in local area networks (LAN's). A source (37) produces electrical signals transmitted through the cable. A resistance circuit (43) is interposed between the source and the cable. The amou... | 10/15/1991 |
| 5055332 | Absorbent pad and method for constructing same An absorbent pad for meat and poultry products and the like and a method for constructing same is disclosed. The absorbent pad includes upper and lower plastic film layers, at least one of which is perforated, and an intermediate absorbent layer disposed ... | 10/08/1991 |
| 5055850 | Waveform generator A waveform generator (12') is responsive to a reference clock signal input for producing an output waveform which is a linear FM waveform. A reference clock signal is supplied to the generator which performs a double integration to obtain the phase of the... | 10/08/1991 |
| 5055151 | Porous filamentary mats and method of making same A porous, filamentary mat has a plurality of layers that are in intimate face-to-face relation and that have portions of the confronting faces thereof bonded together to enable those layers to constitute a unitary, porous, filamentary mat. Each of the lay... | 10/08/1991 |
| 5053772 | Radar system employing a method for motion and range closure compensation A method of providing motion compensation (i.e. phase, doppler frequency, and range closure correction) for wide band synthetic aperture radar (SAR) or classification/identification radar modes is disclosed. An improved radar system employing the method i... | 10/01/1991 |
| 5052137 | Mounting for panels for signboards A mounting for a generally vertical signboard includes clips which coact with the signboard to removably secure at least two sizes of indicia to the signboard. The signboard includes ribs which coact with both the indicia and the clips, allowing the indic... | 10/01/1991 |
| 5050731 | Packaging system for pre-assembled gas barbeque grill A packaging system for a pre-assembled barbeque grill having a grill housing that is collapsed relative to spaced legs, includes a shipping carton surrounding the collapsed grill housing and associated leg supports. Within the carton, end pads are positio... | 09/24/1991 |
| 5050577 | Pre-assembled gas barbeque grill A gas barbeque grill is constructed in a pre-assembled condition and positioned in a shipping carton. A liquid propane (LP) tank is also positioned in the shipping carton at one end. Following purchase, the tank is removed from the shipping carton, withou... | 09/24/1991 |
| 5048321 | Method of discriminating breath contaminants and apparatus therefor A method of discriminating alcohols different from ethanol in breath samples includes sampling voltages from a fuel cell at a rapid rate to establish a curve rising, upon introduction of a sample containing a known amount of ethanol without interferants, ... | 09/17/1991 |
| 5049160 | Taxidermic cleaning compound and method Cleaning compound for cleaning the hair and fur of mounted animals comprises about fifty percent by weight of a dry form sodium carbonate peroxyhydrate, forty percent by weight dry sodium carbonate, and ten percent by weight of dry surfactant, preferably ... | 09/17/1991 |
| 5049255 | Oxygen sensing unit In an oxygen sensing unit, an oxygen sensing cell with a closed outer end is encircled by a side wall of a protective shell or shield, and recessed from an open mouth of the shell. The cell and shell are mounted in a plug made up of a closure cap with an ... | 09/17/1991 |
| 5045759 | Power supply for laser flashlamp An N-phase power supply (1) for operation of a laser flashlamp (F). A first electrical circuit (3) is connected between an N-phase source of electrical energy and the flashlamp for continuously supplying electrical current thereto. A second electrical cir... | 09/03/1991 |
| 5043544 | Power transmission assembly Control apparatus for a power transmission assembly comprising a housing chamber having a switch member with connection leads and a switch actuating mechanism compactly disposed within the housing chamber with a barrier member between the connection leads... | 08/27/1991 |
