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A sealed crustless sandwich for providing a convenient sandwich without an outer crust which can be stored for long periods of time without a central filling from leaking outwardly.
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| Number | Title | Issue Date |
| 4316176 | Tire pressure monitor and self check system therefore Tire pressure monitors are incorporated in vehicles having penumatic tires (14) to continuously or periodically measure the air pressure within the tires and to alert the driver should the pressure in one of the tires fall below a predetermined value. A s... | 02/16/1982 |
| 4300066 | Leakage measuring apparatus for a gas-cooled, liquid-cooled, dynamoelectric machine A leakage measuring apparatus and method is herein provided for a gas-cooled, liquid-cooled dynamoelectric machine's cooling system. The apparatus comprises: a liquid coolant reservoir; an integrating vessel; a flow restriction means such as an orifice, o... | 11/10/1981 |
| 4298863 | Portable patient call A self-contained, electrically-isolated patient call device is provided which permits use by quadriplegic or partially paralyzed patients which includes an extremely sensitive, adjustable, non-sealed, pneumatic, pressure transducer activated by the patien... | 11/03/1981 |
| 4297687 | Leak detection apparatus A leak detection apparatus (18) is provided in a pressurized assembly (10) to signal a loss of pressure or vacuum downstream from a source of pressure or vacuum. A rod (60,160,260) is carried on a valve (62,162) and a diaphragm (38,138) which seals the so... | 10/27/1981 |
| 4275393 | Method and apparatus for sensing pressure A pressure sensing device has a light source, and an optical sensor for externally sensing a predetermined change in the pressure within a sealed system which has a conventional gauge. Illumination from the light source is reflected off of the gauge dial ... | 06/23/1981 |
| 4272959 | Diaphragm breakage condition detecting device for a pressure control device A diaphragm type actuator with a breakage condition detecting function which comprises a diaphragm member partitioning a casing into a first chamber filled with a high pressure and a second chamber exposed to air, and a breakage detecting switch supported... | 06/16/1981 |
| 4270560 | Photo-electric burst disc indicator A photo-electric pressure relief indicator for a fluid system wherein a housing is provided with an opening for connection in fluid communication with the system and provided with a vent spaced from the opening, a rupturable diaphragm extending across the... | 06/02/1981 |
| 4269061 | Leakage sensor apparatus for fluid passageway A fluid pressure passageway (14) such as a high pressure fuel line in a fuel injection system is pressurized to an upper predetermined value. Then, the passageway (14) is isolated and the length of time for the pressure to drop to a lower predetermined va... | 05/26/1981 |
| 4266104 | Switch mechanism with independent toggle actuators A switch mechanism includes a fixed contact bar on which two or more contacts may be mounted. A movable contact is associated with each of the fixed contacts. Two independent toggle mechanisms are provided, each responsive to a different pressure-responsi... | 05/05/1981 |
| 4263929 | Electropneumatic pressure relief indicator A pressure relief indicator including a housing connected in fluid communication with a fluid system to be relieved, a pair of rupturable diaphragms extending in closing relation across the housing and combining to define a closed chamber, the diaphragm a... | 04/28/1981 |
| 4255630 | Multi-circuit electrical switch An electrical switch assembly is shown as having a housing carrying three electrical terminals with first and second of such terminals respectively terminating in first and second fixed electrical contacts and the third of such terminals being electricall... | 03/10/1981 |
| 4254415 | System for revealing cracks in cylindrical members such as bolts, axles, etc., in situ An elongated cylindrical member, such as an axle, a bolt, stud, rivet, supporting column, etc., has means for the in situ detection and indication of cracks therein. The member is generally solid and includes, in accordance with the invention, a cavity ex... | 03/03/1981 |
| 4244365 | Device for use in detecting occlusion in an infusion system An overpressure device is disclosed for use in a liquid infusion set for the purpose of detecting excessive pressures which may occur during infusion. The device comprises a tubular member with an inlet and an outlet, a closed pressure chamber and a bridg... | 01/13/1981 |
| 4233597 | Device indicating a state due to the pressure modification The invention concerns a device indicating a state due to the pressure modification, in particular an overpressure or a vacuum pressure switch for the indication of the fullness of the dust bags in household or industrial vacuum cleaners with a diaphragm ... | 11/11/1980 |
| 4229725 | Wind shear warning system for aircraft A system to warn an aircraft pilot of a hazardous wind shear condition in which the rate of change of airspeed is compared to the ability of the aircraft to respond thereto. Any difference therebetween that exceeds a predetermined threshold is used to act... | 10/21/1980 |
| 4212004 | Pressure drop detectors Pressure drop detectors are provided which are suitable for use in pressurized fluid fire alarm systems. The pressure drop detectors have pressurized fluid circuits provided as channels in the surface of a block of material, including one channel connecte... | 07/08/1980 |
| 4209712 | Arrangement for installing electric or electronic equipment in apparatuses for dispensing fuel An arrangement for installing electronic counters in a petrol pump comprising a pressure-tight casing for accommodating the counters, means for providing an excess air pressure in the interior of the casing and a pressure-controlled switch inside the casi... | 06/24/1980 |
| 4207887 | Gas insufflation apparatus Insufflation gas from a compressed gas source is introduced into a body cavity through a tube connected to the source by an insufflation duct, the pressure in the body cavity being measured by a pressure gauge connected to the body cavity by a measuring d... | 06/17/1980 |
| 4207563 | Gas charged accumulator with failure indicator A gas charged accumulator includes a gas chamber and a hydraulic reservoir on opposite sides of a movable member. A fill passage for pressurizing the gas chamber includes a movable operating device for operating an indicator when the accumulator is substa... | 06/10/1980 |
| 4207565 | Piston overtravel indicator An overtravel indicator for a piston received in a cylinder having an end wall toward which the piston moves includes an elongated indicator rod slidably mounted through a dielectric bushing in the end wall. A conductive garter spring is compressed betwee... | 06/10/1980 |
| 4207564 | Piston overtravel indicator A piston overtravel indicator for indicating overtravel of a piston from a rest position adjacent one end of a cylinder to working positions displaced from the rest position toward the other end of the cylinder. The indicator includes an elongated indicat... | 06/10/1980 |
| 4206455 | Piston overtravel indicator An overtravel indicator for a piston received in a cylinder having an end wall toward which the piston moves includes an elongated indicator rod slidably extending through the end wall. The rod has an armed position extending inwardly of the end wall and ... | 06/03/1980 |
| 4192001 | Decompression ascent computer A portable computer for underwater use to provide a diver with indicia alerting him of the need for decompression pauses during ascent and to further provide a decompression ascent schedule. A pressure transducer measures the diver's depth during the dive... | 03/04/1980 |
| 4187842 | Pressure monitor for breathing system A pressure monitor for a breathing system is disclosed which includes three switches, each of which is connected to the breathing system and each of which is preset to be changed in state when the switch is connected to a pressure which is in excess of a ... | 02/12/1980 |
| 4182344 | Pressure control tracheal device A device for controlling the pressure in an inflatable cuff surrounding an endotracheal or tracheostomy tube is described.... | 01/08/1980 |
| 4173140 | Trigger device for explosion barrier A trigger device for an explosion barrier includes a pressure sensor and at least two flame sensors. The pressure sensor energizes the flame sensors in response to a predetermined pressure rise, and the explosion barrier is triggered when a flame is detec... | 11/06/1979 |
| 4168415 | Pressure switch having modular construction An industrial type switch having modular parts which may be assembled so the switch may be used in a wide range of installations. The switch includes a differential module which is easily adjustable to operate over a selected range of pressures, a plug-in... | 09/18/1979 |
| 4146888 | Hydraulic securing device A hydraulically actuated device secures the back end of a truck against a surface of a loading dock during loading and unloading of the truck. The device includes a self-aligning hydraulic cylinder which is adjustably mounted on the loading dock, and a pi... | 03/27/1979 |
| 4122297 | Electrical bushing A fluid-filled electrical bushing for connecting an electrical conductor in a fluid-filled transformer to an electrical conductor in another enclosure. The electrical bushing includes a safety device consisting of two coaxial flexible capsules which are j... | 10/24/1978 |
| 4122436 | Installation for the protection of a line An installation for the protection of a line, according to which the line is surrounded at least within its area endangered by external influences by a coaxially arranged tubular member and the annular space disposed between the line and the tubular membe... | 10/24/1978 |
| 4114145 | Dual hydraulic braking system for vehicles In a pressure differential warning actuator for detecting when a differential between the pressure of separate brake circuits of an hydraulic braking system exceeds a predetermined value, at least two separate pistons work in separate bore portions in a c... | 09/12/1978 |
| 4106002 | Tourniquet pressure monitor A monitor adapted for use with a pneumatic tourniquet having a pressure supply line, the monitor including an alarm which is actuated via a low pressure sensor or a high pressure sensor when the tourniquet pressure falls below or rises above predetermined... | 08/08/1978 |
| 4101001 | Dual timer with delay A solid state dual timer with adjustable "long" and "short" time intervals preferably providing a long normally operating period between consecutive test periods which are utilized for test purposes, wherein a "delay" interval is provided at the initiatio... | 07/18/1978 |
| 4100537 | Monitor for gas piping system Apparatus for monitoring the pressure in a gas line and providing a visual and audible indication of a high or low pressure condition, the gas line having a pressure sensor for generating high and low pressure signals, comprising a visual indicator respon... | 07/11/1978 |
| 4099166 | Fuel safety switch A fuel safety switch for the fuel system of a motor is designed to be placed in the fuel delivery system and includes a bellows responsive to the pressure of the fuel within the fuel system for expansion outwardly, coil springs disposed on both sides of t... | 07/04/1978 |
| 4097852 | Fault detector for liquid immersed inductive apparatus A device for detecting electrical faults internal of a liquid and gas containing power transformer. Portions of two electrically nonconducting chambers are immersed in, and each chamber has an opening into, said liquid. One of said openings permits the re... | 06/27/1978 |
| 4094293 | Engine preoiler and lubricant reservoir A preoiler and lubricating fluid reservoir for use primarily with an internal combustion engine is disclosed. A hollow cylindrical reservoir is provided with an internal slidable piston which divides the cylinder into a compressed air retaining section an... | 06/13/1978 |
| 4088987 | Fluid leak alarm system A fluid leak alarm system for detecting leaks in the fluid delivery lines located for example in a fuel filling or bulk station or other pressure lines is designed to have a detector with a pressure sensor mounted into each fuel delivery line of the diffe... | 05/09/1978 |
| 4087797 | System for detecting water in steam pipes A pressure transducer is utilized to detect water in a steam pipe utilized in a steam turbine, the transducer produces an output signal which is converted to a control signal that operates an annunciator and/or a valve to protect a steam turbine from wate... | 05/02/1978 |
| 4063228 | Moisture detector for steam line In a steam turbine, the presence of water slugs can have an adverse effect on certain turbine parts. One particular area of concern is the low-pressure end of the turbine wherein excess moisture is more likely to occur. Another source of moisture is an ex... | 12/13/1977 |
