Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 4616369 | Aquatic turbulence suppression device A device (15, 18) for use in a body of water (10) as one of a plurality of such devices assembled in axial alignment with one another along a restraining element (16) to suppress incident wave turbulence, the devices having a hub (19, 119) adapted to rece... | 10/14/1986 |
| 4406628 | Training device for swimmers A kickboard for supplementing the buoyancy of a swimmer when grasped by a swimmer's hands including a generally elongate rectangular member (11) of relatively lesser thickness, one side (20) of said member being a generally planar surface, the other side ... | 09/27/1983 |
| 4340853 | Method of testing the windings and insulation system of a motor by applying the test voltage before completing a path to ground An electrically surge protected motor having a submersible housing (10) can be manufactured and tested for insulation weaknesses by first assembling the motor components in the housing (10) without completing a path to ground therethrough. Then the windin... | 07/20/1982 |
| 4339231 | Motor control housing and junction box for a submersible pump A housing (12) carries a plurality of electrical components (32, 34, 36, 38) for controlling a submersible pump (70). A junction box (14) is attached to the housing (12) and receives a conduit (P) providing electrical power from a power source and also re... | 07/13/1982 |
| 4306968 | Sewage treatment system A sewage treatment system comprising means defining a receptacle including at least one chamber for receiving a body of sewage composed of liquid and solids the top of which is exposed to air, means for applying air, under pressure, immediately below the ... | 12/22/1981 |
| 4303515 | Chemical dispenser for bodies of water A chlorinator (10) for chemically treating with tablets (T) water in a swimming pool having a water recirculating system with a pump with output and input sides including, a cannister (11) having a bottom (12), a top (13) with an opening (15) and connecti... | 12/01/1981 |
| 4257540 | Hand-held battery-powered grease gun A hand-held, battery-powered dispenser for pumpable materials such as lubricants and, in particular, lubricating grease, comprising a handle, a head, a barrel secured to the head holding a supply of lubricant and a plunger slideable within a bore in the h... | 03/24/1981 |
| 4255070 | Single-bolt roof suspension for overhead track An improved roof or ceiling fitting for a monorail system, particularly useful in low seam coal mines. Rail suspension assemblies are each secured in a single counterbored roof hole and are adjustable vertically and laterally for alignment. A bolt is anch... | 03/10/1981 |
| 4252253 | Drink dispenser having central control of plural dispensing stations Drink dispensing apparatus is presented wherein a system including plural dispensing terminals communicates with a central source of beverage ingredients for dispensing. Each of the terminals is interconnected with a central microprocessor which communica... | 02/24/1981 |
| 4249868 | Pump for high viscosity lubricants with improved priming feature A pump for pumping high viscosity lubricants such as wheel bearing grease comprising a pump tube adapted to be disposed within a container of the lubricant, a piston rod and piston movable within the tube, an outlet at the upper end of the tube, an inlet ... | 02/10/1981 |
| 4240328 | Valve mechanism for a hydraulic expansible chamber motor A hydraulic valve mechanism for a hydraulic motor having a cylinder and a piston reciprocating therein, comprising a valve block having a valve face, a main and an auxiliary central exhaust ports, two main feed ports on opposite sides of the main exhaust ... | 12/23/1980 |
| 4224979 | Automatic foundry system A foundry for automatically making sand castings, in which a metal casting and sand cake are transferred to a container after partial cooling and are carried with the container to a storage zone to cool for a time independent of any restrictions imposed b... | 09/30/1980 |
| 4223402 | Clock hand linkage and support assembly A clock hand linkage and support assembly (10) for use with a clock drive mechanism (11) having limited driving torque and power supply and which rotationally increments a hand (14) in discrete intervals through a drive shaft (12) includes a hub (13) havi... | 09/16/1980 |
| 4213339 | Reservoir sensor A sensor for determining the presence of a particular volume of fluid within a plurality of reservoirs maintained as a portion of an automatic mixed drink dispenser. Fundamentally, the invention includes electrical contacts maintained within each of the v... | 07/22/1980 |
| 4207647 | Mobile sewer cleaning and vacuum unit A mobile apparatus for cleaning sewers, catch basins and the like includes a debris collection chamber mounted on the rear of a vehicular chassis. A vacuum conduit communicates with the chamber and is adapted to be lowered into the sewer. A vacuum fan als... | 06/17/1980 |
| 4186821 | Lubricating apparatus Lubricating apparatus comprising a base and a series of divider valves on the base in which the base comprises an assembly of an inlet end block, intermediate blocks and a head end block, with a divider valve mounted on each of the blocks, and with the bl... | 02/05/1980 |
| 4181066 | Expansible chamber motor An air motor comprising a cylinder, a piston, and a valve mechanism for controlling the supply and exhaust of air to and from opposite ends of the cylinder, the valve mechanism comprising a D-valve and an actuator for the D-valve operable by the pressure ... | 01/01/1980 |
| 4175455 | Travelling cut-off saw A continuous material, such as a block of urethane foam, is moved at a constant speed in a longitudinal direction on an infeed conveyor. A stationary cutting platen is situated at the end of the infeed conveyor. A cutting saw is movable in the longitudina... | 11/27/1979 |
| 4155400 | Ladle for and method of tilting about two axes for pouring A vessel for liquid, especially a ladle for molten metal, is constructed and arranged to facilitate pouring of the contents in a uniform stream along a predetermined path under a uniform pressure head, while facilitating starting and stopping of the strea... | 05/22/1979 |
| 4143114 | Probe injection system for a tire curing process A method and apparatus is disclosed for injecting a temperature sensitive probe into a tire to be cured in a mold which is at least in part heated by a steam cavity. The probe is utilized to monitor cure conditions and provides an electronic input signal ... | 03/06/1979 |
| 4124133 | Molten metal delivery carrier An overhead monorail molten metal delivery self-propelled carrier comprising a carrier frame structure support on an overhead monorail, a power actuated hoist on the carrier frame connected by depending flexible members to a second movable structure or ca... | 11/07/1978 |
| 4116134 | Hangers for overhead suspended track An overhead suspended monorail type material handling system or apparatus comprising a rail having a web and a transversely extending flange on each side along its upper edge and a wider flange on each side along its lower edge, a plate-like member or cle... | 09/26/1978 |
| 4114560 | Flow sensor A flow sensor for sensing failure of flow of lubricant through a lubricant line, in which a piston is held away from a no-flow position against a spring by pressure of lubricant flowing in the line, the piston being moved by the spring to the no-flow posi... | 09/19/1978 |
| 4115046 | Probe injection system for a tire curing process A method and apparatus is disclosed for injecting a temperature sensitive probe into a tire to be cured in a mold which is at least in part heated by a steam cavity. The probe is utilized to monitor cure conditions and provides an electronic input signal ... | 09/19/1978 |
| 4108386 | Grinder pump A pump for grinding materials contained in a liquid includes a comminutor located at the pump inlet to grind the material as it passes therethrough and into a pumping chamber. The pumping action is created by an impeller which communicates with the pumpin... | 08/22/1978 |
| 4070605 | Polyphase power control Power control apparatus and method for controlling polyphase excitation of a polyphase load. A first sequence of timong pulses are generated to represent each zero level voltage crossing of every phase voltage from a polyphase voltage source. After each o... | 01/24/1978 |
| 4058917 | Wheel disk display and placard holder A wheel disk display and placard holder adapted to be mounted within the bead portion of a pneumatic tire having a decorative surface extending generally radially and to an extent axially outwardly of a central projecting hub, a circumferential flange pos... | 11/22/1977 |
| 4046260 | Display stand A display stand for generally toroidal articles capable of being folded into a single plane for convenient storage or transporting having two sides, with a first side member being formed as an integral enclosed wire loop and the other side member being si... | 09/06/1977 |
| 4022555 | Tire cure programmer and function generator An apparatus for controlling sequence and duration of the operational steps in processes such as vulcanization of a pneumatic tire is capable of operating under two basic modes or parameters. In one mode the operational steps are dictated by elapsed real ... | 05/10/1977 |
| 4012186 | Panel forming device Disclosed is a device for making panels, such as wall panels, particularly of the type having metallic skins with a foam insulation therebetween. A movable carriage supports temperature controlled mold platens which can carry the skin material and which s... | 03/15/1977 |
| 4003501 | Fluid impingement mixing apparatus Disclosed is a device which permits a plurality of fluids to be received in a mixing chamber simultaneously through nozzles from fluid input chambers. Actuation of a fluid cylinder opens valves so that the fluids are received under pressure in the input c... | 01/18/1977 |
| 3989154 | Stackable and nestable tray for shipping and displaying articles The invention relates to trays for shipping and displaying fragile articles which can be stacked with other identical and similar trays and which can be nested with identical trays. The subject trays have a plurality of pockets adapted to receive the frag... | 11/02/1976 |
| 3980743 | Method of tire cure control A system for controlling sequence and duration of the operational steps in processes such as vulcanization of a pneumatic tire is capable of operating under two basic modes or parameters. In one mode the operational steps are dictated by elapsed real time... | 09/14/1976 |
| 3976409 | Tire curing press center mechanism A center mechanism for a press for shaping and curing tires having a center post carrying an upper bladder clamp, a distensible bladder is secured to the upper bladder clamp and a lower bladder clamp such that a chamber for circulating curing medium is fo... | 08/24/1976 |
| 3958594 | Dual hose reel A hose reel, particularly suitable for use with a mobile sewer cleaner, includes a cylindrical drum rotatable on a generally horizontal axis. A plate is affixed to each end of the drum to form the hose reel which is divided generally centrally by a third ... | 05/25/1976 |
| 3949961 | Material handling apparatus Overhead monorail material handling system having parts supported by closed elastomer vessels or containers having liquid therein. In some applications a plurality of such vessels or containers are connected by conduit means so that the liquid can flow fr... | 04/13/1976 |
