Class 73/731 - Sack

Subclass of Class 73 - Measuring and testing
Definition: Subject matter wherein the pressure responsive element is
No. of patents: 35
Last issue date: 02/09/2010

Number	Title	Issue Date
7658112	Mat for pressure measurement and a body information acquisition device When the distribution of the pressure applied to a mat is measured, a plurality of detection units is established in the air mat and the sensor for measuring the pressure applied to the air mat is needed to be provided for each detection unit. The mat for pressure m...	02/09/2010
7047832	Apparatus for measuring gas exchange A container having a port for holding a liquid medium and a reactant that interact to produce a change in gas levels within the container. A removable stopper for insertion into the port creating an airtight seal. A tube extending through the stopper into the contai...	05/23/2006
6966233	Dual interdigitated chamber seat bladder for occupant position and weight estimation An occupant position and weight estimation apparatus includes an elastomeric seat bladder having physically isolated central and peripheral fluid-filled chambers corresponding to central and peripheral areas of the seat. The fluid pressure in the peripheral chamber ...	11/22/2005
6918291	Pressure gauge and cap An apparatus comprises a gauge for measuring a parameter. The gauge has a sensing section configured to react to exposure to the parameter in a manner indicative of the parameter. The gauge further has a port through which the sensing section is exposed to the param...	07/19/2005
6663352	Method and apparatus for dynamically determining vapor pressure in pumping systems A method and system for dynamically determining a vapor pressure of a fluid passing through a pumping system by diverting a portion of the fluid from the pumping system into a chamber, isolating the diverted fluid from the pumping system, evacuating the c...	12/16/2003
6422087	Electronic control system for a variable support mechanism A variable support mechanism includes a plurality of pneumatic bladders and an electronic control system for controlling the inflation and deflation thereof. Each of the bladders communicates through a valve with a common manifold. The operations of the v...	07/23/2002
5922966	Air-pack type contact pressure measuring method While a bag (1) made of a thin, soft, and less elastic material is packed with air and is positioned between contacts of soft materials, a thin tube (2) from the bag (1) is lead to the outside of the contacts, and the pressure difference with respect to a...	07/13/1999
5795065	Temperature-time-pressure detector A temperature-time-pressure detecting device for a closed heat treatment zone consists of a sealed discoidal-shaped capsule of substantially transparent material adapted for placement within the zone in a generally vertical position. The capsule is formed...	08/18/1998
5357804	Device including a planar matrix of fluid filled bags for measuring pressure acting on a support To measure pressure acting on a support (1), a sealed bag (2) which is filled with a fluid and has flexible bag walls (9, 10), and which is arranged on the support (1) and whose interior communicates with a flexible capillary tube (4, 4'), is used as a se...	10/25/1994
5335551	Pillow type pressure detector A pillow type pressure detector having a base board on the front surface of which a load cell type load sensor is mounted; a holder cover which is so provided as to be spaced a predetermined distance from the base board; a flat-plate-shaped load transmitt...	08/09/1994
5293780	Head-gauge/tank-bladder A head-gauge/tank-bladder device for measuring the pressure of liquid within a tank. The invention provides for measuring the tank pressure while maintaining the gauge isolated form the liquid within the tank. The invention is connects a gauge to a fluid ...	03/15/1994
5260692	Control device for fluid containers of flexible material A control device for fluid containers (16) of a flexible material, particularly for controlling the level of stomi bags, comprises an elastic resistance element (10) having an electric resistance which changes by stretching of the element, which is adapte...	11/09/1993
5255670	Air reservoir An air reservoir (4) intended for regulating the pressure in the sealing cuff of a respiration catheter has a wall consisting of an elastic membrane (3). The reservoir also functions as a pressure gauge, the elastic membrane when inflated being caused to ...	10/26/1993
5134889	Mechanical transducer A mechanical transducer is disclosed which includes a converter having a plurality of elongate flexible elements, which are joined together at their opposite ends and spaced at intervals around a longitudinal axis of the transducer. The opposite ends of t...	08/04/1992
5083498	Bendable actuator A bendable actuator includes a tubular body made of an elastic material, a reinforcing braided structure surrounding the tubular body, and closure members closing both open ends of the tubular body and the reinforcing braided structure, respectively. At l...	01/28/1992
4869197	Bulge indicating method and device A method and device for indicating the swelling of a casing or the like having a wall with at least one generally planar portion prone to deformation by pressure buildup within the casing. The device comprises an elongate strip of visible frangible materi...	09/26/1989
4690000	Direct-acting pressure sensor A direct-acting pressure sensor capable in the low-pressure range and including a pressure-sensitive assembly constituted by inner and outer concentrically-arranged curved springs anchored at one end in a socket to define a pressure region therebetween, w...	09/01/1987
4604901	Hydraulic pressure receiver An elongated elastically deformable housing is responsive to external force applied thereto and is connectable to a pressure evaluation device. A rigid tube longitudinally traverses the housing and defines therewith a closed annular space around the tube,...	08/12/1986
4502491	Apparatus for determining the pressure between a support dressing and a body portion surrounded by said support dressing An apparatus for determining the pressure between a support dressing and a body portion surrounded by said support dressing comprises a device for sensing the pressure, a device for indicating the pressure sensed and an arrangement transferring the pressu...	03/05/1985
4470308	Arc scan ultrasonic imaging system having diverging lens and path-length compensator An ultrasonic imaging system comprises a transducer array including a plurality of elongated piezoelectric transducers successively arranged along a curved surface for emission of diverging beams of acoustic energy and an acoustic diverging lens affixed t...	09/11/1984
4424708	Fuel cell leak detector A method and device for leak testing vessels such as fuel cells or tanks which are large enough for a person to move around within holding a small hand held ball or balloon type device which is provided with a large aperture. In leak testing a vessel, the...	01/10/1984
4421124	Pressure detection arrangement A pressure detection arrangement embedded between the skin of a portion of the body and a means used to surround and/or immobilize that particular part of the body, such as a cast. The pressure detection arrangement is a bifurcated capsule having a reserv...	12/20/1983
4312361	Pressure monitoring system for electrofluidic sensing devices A pressure monitoring system for use with an electrofluidic device for sensing pressure includes a pump for supplying fluid to the electrofluidic sensing device. An electrical switching circuit controls the supply of fluid to the sensing device and is res...	01/26/1982
4287819	Source of vacuum and device for maintaining a negative pressure in an enclosure The source of vacuum comprises a tubular body in which a piston which is combined with a piston rod is axially slidable. A seal is interposed between the rod and the body where the rod extends out of the body. A suction orifice is provided which is on the...	09/08/1981
4286603	Pressure detection arrangement A pressure detection arrangement embedded between the skin of a portion of the body and a means used to surround and/or immobilize that particular part of the body, such as a cast. The pressure detection arrangement is a bifurcated capsule having a reserv...	09/01/1981
4232687	Apparatus and method for determining newborn infant feeding capability The disclosure is directed to a method and apparatus for determining a newborn infant's capability to orally accept nourishment. In accordance with the method of the invention, a test nipple is inserted in the mouth of an infant. Further method steps comp...	11/11/1980
4216783	Pneumatic monitor for indicating strength of contractile muscles This invention relates to a muscle monitor device for providing a visual indication of the strength of contractile muscles, especially the vaginal muscles. The device is useful both as a preventive and therapeutic biofeedback component for aiding the user...	08/12/1980
4164938	Medical pressure gauge and indicator device The medical pressure gauge and indicator device is for diagnosing the presence of tension pneumothorax in the pleural cavity of a patient. The gauge and indicator device comprises a diaphragm, a needle and a sleeve, with the diaphragm having an interior s...	08/21/1979
4147161	Intracranial pressure monitoring method and system System for measuring or monitoring the intracranial pressure which comprises a non-elastic detecting pouch to be inserted into the space between the skull and the cerebrum, a flexible tube connected to the pouch, a device for supplying a liquid into the p...	04/03/1979
4135494	Over-pressure protection device An over-pressure protection device utilized for limiting the fluid pressure applied to a vein which has been removed from the body and which is being tested prior to transplantation within the body. The over-pressure protection device has a port for accep...	01/23/1979
4096759	Pressure gauge for indicating small pressure changes A pressure gauge for indicating small pressure changes includes a sac of thin flexible film material communicable with and inflatable by the pressure to be indicated, during use. The sac is supported by a base so that the sac effectively inflates in a gen...	06/27/1978
4064759	Pressure measuring device The preferred embodiment of the invention disclosed herein comprises a closed glass member including a hollow pressure-sensing portion and a hollow pressure indicating portion communicating with the pressure-sensing portion. At least one wall forming the ...	12/27/1977
4062354	Intracranial pressure transducer system Intracranial pressure transducer System, wherein a holding bracket containing and supporting sensor elements of the apparatus is surgically positioned, through an opening in the skull, against the dura of a neurosurgical patient. The elements within the h...	12/13/1977
4052903	Pressure sensor A cup-shaped elastomeric diaphragm is snugly fitted onto an end portion of a support member which includes internal gas delivery and return passageways. A plurality of ports extend both radially and axially from the gas delivery passageway towards the dia...	10/11/1977
3980082	Venous pressure indicator An intravenous infusion system combined with a venous pressure measuring instrument whereby the system is selectively capable of supplying fluid into the vein of a patient or of measuring his venous pressure without, however, exposing fluid in the system ...	09/14/1976

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Class 73/731 - Sack