Quotables
"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 7182171 | Muffler with variable acoustic properties A muffler with variable acoustic properties. A pressure cell with a diaphragm, a spring, a piston, a piston rod, a closing element on the piston rod, and a pressure connection line are integrated into a housing. The diaphragm is thermally insulated against the pisto... | 02/27/2007 |
| 6959703 | Paintball gun throttle regulator device A paintball gun throttle regulator device includes a body, an adjusting bolt, an elastic element, an adjusting piston, and a cocking. The body comprises a piston chamber, an air chamber next to the piston chamber, and a connecting chamber. The piston chamber and the... | 11/01/2005 |
| 6655404 | Actuator control device The invention refers to a control device for an actuator (1). The device, controlled by a control valve (20; 71; 80, 81), comprises slides (30, 31) to obtain different conditions of the control valve, and these slides (30, 31) are activated by a two-posit... | 12/02/2003 |
| 5558115 | Valve positioner with pressure feedback, dynamic correction and diagnostics In this invention, a valve positioner receives a setpoint from a master and provides a control pressure to a valve actuator for controlling a valve. A sensing circuit in the positioner senses the position of the valve and the control pressure, and a contr... | 09/24/1996 |
| 5549137 | Valve positioner with pressure feedback, dynamic correction and diagnostics In this invention, a valve positioner receives a setpoint from a master and provides a control pressure to a valve actuator for controlling a valve. A sensing circuit in the positioner senses the position of the valve and the control pressure, and a contr... | 08/27/1996 |
| 5163471 | Low-pressure pilot valve An improved pilot valve is disclosed having a flow path from the inlet to the sense cavity via the valve spindle. An articulated disk is provided at the bottom of the valve spindle and is secured thereto by a hollow screw. Such articulated disk can adjust... | 11/17/1992 |
| 4938789 | Raw material supplying device and process A raw material supplying device having a gas tight tank for receiving a material to be gasified by heating; a heater for heating the raw material within the tank and a plurality of pipes for conveying a plurality of streams of gas in parallel to each othe... | 07/03/1990 |
| 4768555 | Solenoid valve A two way closed-center solenoid valve provides effective areas upon the valve members which result in static pressure balancing of these members. Additional feedback areas are provided and exposed to fluid pressure which approximates a first time derivat... | 09/06/1988 |
| 4634047 | Thermostatically adjustable pressure regulator A low pressure pneumatic pressure regulator having particular application to the control circuits of system powered air distribution systems. A diaphragm separates a control chamber located above the diaphragm from an underlying output. The chambers commu... | 01/06/1987 |
| 4510961 | Pneumatic controller A pneumatic controller is disclosed having an automatic switching of its time behavior as a function of the control pressure by means of a relay being arranged in the integrating feedback path and being actuated by the control pressure. According to the i... | 04/16/1985 |
| 4453559 | Pneumatic controller A pneumatic process controller includes a nozzle mounted on a set point lever and a flapper with a connected process lever. The set point lever pivots the nozzle about a set point and input axis in response to set point adjustment. The process lever pivot... | 06/12/1984 |
| 4449546 | Controller with adjustable proportionality range A controller with adjustable proportionality range wherein a ring is acted upon by a pressure differential in measuring unit formed as, for example, pairs of bellows or the like. The measuring units have axes of effectiveness which are perpendicular to ea... | 05/22/1984 |
| 4428391 | Circuit for pneumatic controllers A circuit for pneumatic controllers, a proportional-action range of which is adjustable, with the circuit including at least one differential amplifier having input pressure chambers being exposed to pressures derived between two throttle resistors respec... | 01/31/1984 |
| 4417599 | Vacuum signal integrator A Vacuum Signal Integrator (10) is typically employed for processing and combining multiple vacuum input signals into a single output signal within the environment of a truck or automobile. The integrator, in a typical application, would input vacuum sign... | 11/29/1983 |
| 4291717 | Proportional stroke automatic temperature control system This invention relates to an automatic temperature control system for automobiles and improved components thereof. The control system operates on the proportional stroke principle and comprises an in-car air sensing tube biased with ambient air; a sensor ... | 09/29/1981 |
| 4282781 | Transmission throttle valve of automatic power transmission A transmission throttle valve for use in a hydraulic control system of an automotive automatic power transmission, comprising a valve plunger movable with the accelerator pedal of an automotive vehicle, a valve spool arranged and movable in line with the ... | 08/11/1981 |
| 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 |
| 4231385 | Pneumatic controller A housing has an internal opening or cavity within which is a body. Both the opening and body have a relatively large cylindrical median portion and two smaller cylindrical end portions. Three annular diaphragms interconnect the housing and the body and d... | 11/04/1980 |
| 4203817 | Method of and device for moving liquid samples The invention is in concern of a method and a device for moving a liquid sample material in a measuring chamber, particularly for use in electrophoretic measurements. To permit precise measurements the remaining sample material is prevented from mixing wi... | 05/20/1980 |
| 4153068 | Pneumatic controller Discloses a pneumatic controller having a proportional band altering unit, a proportional plus integral operation unit, a comparator and a manual-automatic transfer means, wherein the proportional band altering unit is combined with the proportional plus ... | 05/08/1979 |
| 4094463 | System having reset action A system is disclosed for providing reset action in a controller, having an averaging circuit for supplying a pilot signal which is the average of an input signal and a feedback signal, a relay having an input connected to receive the pilot signal for pro... | 06/13/1978 |
| 4083375 | Pilot regulator A pilot regulator for pressure regulation servo-control of a valve in a compressible fluid system includes a delay arrangement for achieving both rapid response and stable operation. The regulator includes a restrictor for supplying fluid from the main va... | 04/11/1978 |
| 3981318 | Pneumatic output signal limiting device A pneumatic output signal limiting device utilizing a planar-type construction having a balance beam with a passage extending through the area of its pivotal axis to provide communication between side-by-side chambers and arranged so that the balance beam... | 09/21/1976 |
