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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 |
| 4296777 | Multiple coupling for lubricating systems The invention relates to a multiple coupling for lubricating systems, preferably progressive lubricating systems of motor vehicles, especially tractor trailer units. The multiple coupling a plug box and a plug, with the help of which several lubrication p... | 10/27/1981 |
| 4288032 | Steam trap including interchangeable body member and insert assembly A valve body member and various insert assemblies usable with the body member to form steam traps of different types are disclosed in this application. The body member includes an internally threaded, generally cylindrical recess extending inwardly from a... | 09/08/1981 |
| 4276354 | Steam traps or the like The disclosure relates to a housing in which any one of a plurality of steam trap valve assemblies may be installed and which may be machined to accommodate a plurality of different inlet and outlet conduit configurations. The housing includes a main body... | 06/30/1981 |
| 4253484 | Valve operator A valve operator is connected to a pipeline valve to control the throughput flow therethrough. A plurality of chambers are formed in the housing including control, balancing, bleed and regulator chambers. A poppet valve and an orifice device are disposed ... | 03/03/1981 |
| 4252296 | Valve A piston-like member slides within a valve body, with one end sealingly engageable against a valve seat communicating with an inlet port. The other end of the piston-like member forms a movable wall of an expansible chamber which, when it expands, moves t... | 02/24/1981 |
| 4250920 | Valve for water treatment equipment A valve for water treatment equipment and characterized by an elongated chamber divided into sections interconnected by passages surrounded by longitudinally aligned valve seats. A valve stem supporting a pair of valve heads is longitudinally movable towa... | 02/17/1981 |
| 4246927 | Battery formation apparatus An improved battery formation apparatus wherein a specially designed overflow/drain plug is provided for directing the flow of fluid out of a water tub used to control the temperature of batteries during the formation thereof. The plug is a combination of... | 01/27/1981 |
| 4230301 | Valve A straight compression valve is disclosed in which shutoff of flow of fluid is effected between surfaces of plastic material, but in which a washer of non-metallic material may be employed under certain conditions. When the washer is not used, the design ... | 10/28/1980 |
| 4228817 | Valve construction having multiple piston means A valve construction having a housing provided with a chamber and ports leading to the chamber and having an axially movable piston unit disposed in the chamber to interconnect certain of the ports together in relation to the axial position of the piston ... | 10/21/1980 |
| 4226259 | Regulator module For use with a remotely actuated fluid supply valve, an internally balanced pressure regulating module is provided for regulating the pressure downstream of the valve by modulating the rate at which fluid is bled from a closure chamber of the valve in res... | 10/07/1980 |
| 4215714 | Valve and method of making A refrigeration valve body is formed by brazing front and back segments having front and back ports respectively, the back segment also having a distribution port and a charging port for the reception of pressurized freon gas to charge a related refrigera... | 08/05/1980 |
| 4207917 | Hand-operation device for solenoid valves A manually operable actuation pin for operatively engaging the solenoid armature of an electromagnetic valve device is provided to permit manual emergency or auxiliary control of the armature. The actuation pin is designed to permit locking in its actuate... | 06/17/1980 |
| 4181141 | Pneumatic circuit arrangement A pneumatic control for cyclic successive activation of a plurality of pressure fluid consumers and comprising a series of control modules abutting each other in side by side relation for controlling activation of respective ones of the consumers. Each co... | 01/01/1980 |
| 4174733 | Process gas flow control module A module which integrates into a single block a process gas flow control system for precisely metering the flow of gas fed into a furnace diffusion tube or other utilization device. The block is formed of a chemically-inert body having cavities therein fo... | 11/20/1979 |
| 4171768 | Thermostat unit for central heating radiators An individual thermostat unit for the valve housing of a central heating radiator replaces the conventional radiator valve mechanism and affords a simplified mounting without the need for modifications of pipe connections. This thermostat unit comprises t... | 10/23/1979 |
| 4170214 | Hydraulic valve module Apparatus for assembling a complete modular valve system, including modules containing manifold blocks in which are mounted valves, such as flow controls, checks, pressure reducers and reliefs, the modules being sandwich mounted between a directional valv... | 10/09/1979 |
| 4167195 | Valve A straight compression valve is disclosed in which shutoff of flow of fluid is effected between surfaces of plastic material, but in which a washer of non-metallic material may be employed under certain conditions. When the washer is not used, the design ... | 09/11/1979 |
| 4167197 | Directional change-over valve A directional change-over valve which has a valve body having connecting surfaces at both sides thereof, a spool slidably inserted into the valve body, a check valve replaceable depending upon utilities thereof, wherein the valve body has a plurality of v... | 09/11/1979 |
| 4165139 | Manifolding means and system for electrical and/or pneumatic control devices and method A manifold adapted to detachably carry on one side thereof a plurality of pneumatically and electrically operated control units each of which is adapted to be fluidly and electrically interconnected to pneumatic structure and electrical structure of the m... | 08/21/1979 |
| 4133510 | Valve spool positioner A pilot operated valve comprised of a cylindrical grooved spool having axially aligned throttling slots which require alignment with certain ports in an encompassing housing is prevented from rotation in the housing during reciprocation therein by a nonci... | 01/09/1979 |
| 4132243 | Apparatus for feeding perforation sealer balls and the like into well treating fluid Apparatus for feeding perforation sealer balls into a stream of well treating fluid being pumped through a fluid flow line into a well, the apparatus having a housing, a tube in the housing for receiving sealer balls, the tube communicating with the fluid... | 01/02/1979 |
| 4130128 | Ball valve with orifice The through hole of the ball of a ball valve which resembles a cock is provided with an orifice on the side wall thereof. Opposite to the orifice on the side wall of the through hole is provided another through hole. By revolving the ball, the ball valve ... | 12/19/1978 |
| 4111226 | Multiple function four poppet valve system Four poppet valves are mounted in a common machined body which has a single inlet port, a pair of working ports and a pair of exhaust ports. The body interior has four valve ports, two of which connect the inlet port to the two working ports and the other... | 09/05/1978 |
| 4106524 | Low actuation force fluid valve apparatus A fluid valve apparatus having a stationary semicylindrical member through which a fluid port extends is characterized by a valve band which is flexibly movable from a first, closed, to a second, open, position in response to an actuating force. In the cl... | 08/15/1978 |
| 4099706 | Valve construction and method of making the same A valve construction having a first housing provided with an internal chamber and an inwardly directed shoulder projecting into the chamber at one end thereof and defining a valve seat on one side thereof. A second housing is secured to the first housing ... | 07/11/1978 |
| 4095864 | Modular manifolding means and system for electrical and/or pneumatic control devices and parts and methods A manifold adapted to detachably carry on one side thereof a plurality of pneumatically and electrically operated control units each of which is adapted to be fluidly and electrically interconnected to pneumatic structure and electrical structure of the m... | 06/20/1978 |
| 4095863 | Manifold means and system for electrical and/or pneumatic control devices and method A manifold adapted to detachably carry on one side thereof a plurality of pneumatically and electrically operated control units each of which is adapted to be fluidly and electrically interconnected to pneumatic structure and electrical structure of the m... | 06/20/1978 |
| 4091840 | Flow distributing system An assembly of pipes and flow control means (e.g., valves) carried by a supporting frame (e.g., a skid) and forming a modular unit for field assembly of flow distributing or diverting systems of the type used in the petroleum industry in connection with t... | 05/30/1978 |
| 4082993 | Gas appliance valve and adaptor There is disclosed a valve for controlling flow of gas and for use with portable gas appliances such as picnic stoves, heaters or lamps. The valve is associated with an adaptor having a projection arranged for operating an outlet valve in a refillable gas... | 04/04/1978 |
| 4078578 | Beverage dispensing valve A beverage dispensing valve for pressurized beverages having a faucet portion, a rear portion having a flow control and a check valve portion fluidly connecting the faucet and rear portions enabling removal of the faucet portion while the rear and check v... | 03/14/1978 |
| 4078574 | Modular control valve A modular hydraulic valve is disclosed, which comprises a valve manifold and a number of valve cartridge elements disposed at least partly within cavities defined in the valve manifold. To encourage interchangeability and reduce manufacturing costs, each ... | 03/14/1978 |
| 4074688 | Pilot valve There is disclosed a valve having a valving element longitudinally reciprocable within a bore in the body of the valve between alternate positions for controlling the flow of a first fluid between lateral ports connecting with the bore. A piston connected... | 02/21/1978 |
| 4073313 | Valve apparatus Valve apparatus including a generally cylindrical valve body member and at least one pilot valve located at the end of the valve body member. A supply valve is located within the valve body member and the supply valve and the pilot valve permit the non-th... | 02/14/1978 |
| 4064899 | Control and signal arrangement for respirators A control and signal arrangement for respirators which includes a service or supply block provided with bores for receiving a pressure reducer and/or an alarm mechanism. The pressure reducer and/or the alarm mechanism are fashioned as individual detachabl... | 12/27/1977 |
| 4061156 | Transition module for a pneumatic sequencer and an associated sequencer The transition module is intended to be assembled with at least three action modules constituting a sequencer and comprises an elementary logical gate having two inputs and one output, two inputs for receiving the output signals of two predetermined actio... | 12/06/1977 |
| 4046350 | Power actuated valve A power actuated 90° rotation valve in which the power actuator is coupled to the valve stem by a socket which simultaneously engages a lug fixed with the valve stem and a nut threaded to said valve stem so that the nut cannot loosen during actuation of ... | 09/06/1977 |
| 4046159 | Pneumatic logic circuits and their integrated circuits The pneumatic logic circuit is of generally symmetrical structure around an axis and symmetrical with respect to a median plane normal to this axis. It has a median plate provided with an axial passage and with a duct opening into this passage. On each si... | 09/06/1977 |
| 4041972 | Hydraulic stack valve assembly A hydraulic stack valve assembly for controlling the pressure and flow of hydraulic fluid in a hydraulic system. The stack valve assembly includes a valve body including flow control valves and a valve cover including pressure control valves and a flow di... | 08/16/1977 |
| 4027692 | System allowing the realization of logic circuits by juxtaposition of pneumatic elements Pneumatic logic system. The logic chain is established by juxtaposition of logic modules each of them being provided with a selecting organ having at least two positions allowing to modify the circuit diagram. Advantageous system for the sequential control of ... | 06/07/1977 |
| 4020861 | Vapor recovery valve A flow control valve particularly useful for a vapor recovery system of a gasoline station. Gasoline and gasoline vapor flow through separate passages in the valve. A restriction (venturi) is provided in the gasoline passage so that a pressure differentia... | 05/03/1977 |
