Class 73/738 - Safety pressure release casing

Subclass of Class 73 - Measuring and testing
Definition: Subject matter wherein the Bourdon tube has a casing enclosure
No. of patents: 27
Last issue date: 04/29/2008

Number	Title	Issue Date
7363811	Measurement pickup A measurement pickup is provided offering a high measure of safety and having a measurement pickup housing, a sensor element arranged in the measurement pickup, at least one connection element closing the measurement pickup housing, and an excess-pressure protection...	04/29/2008
7240559	Manometer The invention relates to a manometer with a housing, a connecting piece rigidly connected to the housing, a bourdon tube arranged in the housing, a viewing glass fixed on the housing, and a pointer, which can rotate on the inside of the viewing glass and which is en...	07/10/2007
6962476	Methods and apparatus for handling fragile bars Methods and apparatus for handling material for the insulating glass industry are disclosed. One method of handling material for the insulating glass industry in accordance with the present invention includes the step of arranging a plurality of bars into a pluralit...	11/08/2005
6954064	Method and apparatus for measuring a thickness of a nonconductive coating and calibrating a thickness measurement gauge A method and apparatus are provided for measuring a thickness of a nonconductive coating disposed over portions of first and second conductive surfaces that intersect at an intersection angle. The apparatus is a thickness measurement gauge having an eddy current sen...	10/11/2005
6571614	Injection pressure sensor sealing mechanism An injection pressure sensor (10) intended for use with a fluid source (12). The injection pressure sensor (10) has a sensor element (14) in communication with the fluid source (12) and in communication with a pressure reference source (16). The injection...	06/03/2003
6216541	Pressure gauge overpressure safety release A pressure gauge in which the displacement tip of the Bourdon tube is sealed and secured to a bracket of an amplifier movement by a selected solder composition affording a failure response to an encountered overpressure at a pressure value lower than the ...	04/17/2001
5911163	Dual mode vent plug assembly for an enclosed housing A vent plug assembly for relieving overpressure from within an instrument casing and comprising a body adapted for secured placement within an aperture defined in the exterior wall of the casing and having a thru-bore and a blind recess symetrically space...	06/08/1999
5012678	Overpressure relief safety plug for pressure gauges An overpressure relief plug for safeguarding pressure gauges that tend to damage due to internal overpressure comprising a safety plug for interference sealing fit application to an aperture formed in the pressure gauge housing that otherwise communicates...	05/07/1991
4838090	Multicoil bourdon tube type pressure gauge A multicoil tube type pressure gauge arranged for direct drive of the gauge pointer and for safely handling overpressure in the event of Bourdon tube rupture comprising a casing of round configuration defining a planar upright main chamber, with the casin...	06/13/1989
4545256	Integral solid front gauge case for a pressure gauge A case of sheet metal construction for a pressure gauge having a solid front case wall extending integral from the annular sidewall of the case....	10/08/1985
4501152	Temperature compensator for liquid filled pressure gauge A liquid filled pressure gauge in which temperature induced volumetric changes inposed on the liquid fill are compensated for by a tensioned flexible diaphragm secured in a pressure-tight spaced relation on a cover plate for the gauge casing. For receivin...	02/26/1985
4460018	Ultralow pressure relief valve An ultralow pressure relief valve (10) is disclosed. Sealing fluid (24) is held in place by capillary forces inside capillary tube (12). When pressure in tube (11) exceeds capillary forces, sealing fluid (24) is forced into reservoir (14), protecting pres...	07/17/1984
4449412	Safety pressure gage A combined fluid pressure gage and safety pressure relief device for interconnection with systems wherein excess fluid pressure will cause explosions likely to result in injury to personnel and damage to surrounding equipment. The device accurately measur...	05/22/1984
4373398	Indicating gauge with pressure relief valve A vehicular instrument or gauge of the type that has a sealed housing filled with an inert gas and a pressure responsive drive assembly for an indicating element such as a needle pointer. The housing is provided with a pressure relief valve to relieve exc...	02/15/1983
4347744	Diaphragm type differential pressure gauge with overpressure relief protection A sealed differential pressure gauge of the general type shown in Phillips and Zoludow U.S. Pat. No. 3,645,140 in which a sealed housing is provided that includes a flexible diaphragm that is to be exposed to differential pressures to operate a sensitive ...	09/07/1982
4315432	Enclosure for protecting instruments against adverse environments A protective enclosure for an instrument comprising a pair of housings connected to a support ring. An external bracket for securing the enclosure to a mounting structure is attached to the outside of the support ring and an internal bracket for supportin...	02/16/1982
4248080	Wheel-mounting tire pressure gage with failsafe features A tire pressure gage for integral mounting on the wheel of an aircraft tire is provided with failsafe features to reduce the likelihood of sudden tire pressure loss through catastrophic failure of the gage. A pressure relief valve vents the case when the ...	02/03/1981
4214486	Sealed casing for pressure gauge An improved solid front casing for a pressure gauge that is readily field converted from a dust-tight to either a hermetically sealed air-tight or hermetically sealed liquid-tight construction. A flexible closure element is axially supported over a rear o...	07/29/1980
4196633	Pressure gauge construction Excess pressure being supplied to a pressure gauge is controllably relieved through the gauge cavity and an unsealed aperture in a spring-like crystal. A sleeve member extends transversely in a forced engagement between the inside face of the crystal and ...	04/08/1980
4175444	Gauge assembly A gauge assembly is disclosed having a casing formed of two separate cup members joined together in back-to-back relationship so as to form a relatively thick partition wall within the casing. The wall acts to reduce the possibility of parts being project...	11/27/1979
4154116	Safety manometer The front edge (2) of a manometer casing (1) is curved inwardly and secures the window shield (3), located in a sealing ring (5), against being pushed out upon superatmospheric pressure in the housing. A partition (17), in which slotted holes (18, 20, 21)...	05/15/1979
4124931	Method of assemblying a pressure gauge A method for assembling a pressure gauge which employs a removable metal safety plate. The gauge movement, comprising a Bourdon tube, pointer, gauge dial and gear mechanism is mounted on both sides of a metal safety plate and the entire assembly is then i...	11/14/1978
4096760	Pressure gauge A pressure gauge comprising a rigid housing in which a gauge member is located whose interior is subjected to the pressure to be measured. The housing includes a pressure equalizing device in the form of a cup-shaped resilient membrane or a resilient bell...	06/27/1978
4083251	Pressure gauge A pressure gauge has a plate on one face of which is mounted a flange portion which extends outwardly substantially at right angles from the plate. The flange has arranged therein an opening for receiving a mounting having an upper face and being adapted ...	04/11/1978
4051730	Condition responsive indicating instrument An improved housing for a condition responsive indicating instrument which includes a one-piece, integrally-formed casing having a generally circular front support plate whose front surface is adapted for mounting a dial face thereon and a cylindrical wal...	10/04/1977
3952598	Pressure gauge construction A pressure gauge of small size and type suitable for fire extinguisher use. Comprising the gauge is a dial plate secured in keyed registration onto the front face of the casing. A tubular stem extending laterally from the inside face of the viewing crysta...	04/27/1976
3938393	Measuring instruments A measuring instrument such as a manometer adapted to be mounted in a fluid pressure system and having a rigid, generally closed instrument casing, the rear wall of which is provided with an opening in which there is inserted a blow out security element w...	02/17/1976

PatentStorm

Quotables

PatentStorm News

Class 73/738 - Safety pressure release casing