Bizarre Patents
An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7937985 | Checking apparatus for checking operation of a densimeter for medium-voltage and high-voltage electrical equipment, and a method of checking operation of a densimeter Checking apparatus for checking operation of a densimeter for medium-voltage or high-voltage equipment having metal casing (4) that is filled with a dielectric gas under pressure; the apparatus comprises a closed chamber (8) suitable for being put into... | 05/10/2011 |
| 7673503 | Method for estimating an engine exhaust temperature and method for diagnosing a cylinder pressure sensor using an exhaust temperature estimate A method for estimating exhaust temperature on an output of an internal combustion engine cylinder, the cylinder including a crankshaft transforming into a rotation a translational movement of a piston mounted sliding in the cylinder, the piston closing a combustion... | 03/09/2010 |
| 7628055 | Method of determining the zero-clearance pressure in a controlled clearance piston gauge A method of determining the zero clearance pressure in a controlled clearance piston gauge. The typical method includes pressurizing the cylinder in which the piston resides to a given system pressure. The jacket pressure is then changed and the exhaust gas pressure... | 12/08/2009 |
| 7314461 | Precalibrated inflation device for balloon catheter A medical device including an inflation element, such as a syringe, and a balloon catheter in which the inflation element includes a series of indicia to which an operative portion of the inflation device can be aligned. The indicia directly correspond to a particul... | 01/01/2008 |
| 7174773 | Leak-testing technique for differential pressure sensor array A leak-testing technique and apparatus for differential pressure sensor arrays is provided. A reference pressure sensor array is provided, wherein a seal is disposed between the reference pressure sensor array and a target differential pressure sensor array. A probe... | 02/13/2007 |
| 7158905 | Field replaceable sensor module and methods of use thereof A field replaceable sensor module having a housing, that is capable of being ready connected and disconnected to a multipurpose device The housing includes one or more input ports and one or more electtical interface connectors. One or more sensors are operatively c... | 01/02/2007 |
| 7146843 | Extreme low air pressure deadweight tester The present invention relates to Deadweight Pressure Testers used for the calibration of air pressure transducers. An air pressure transducer, which is to be calibrated, is set in parallel with the deadweight tester. Air is slowly pumped into the cylinder and the pr... | 12/12/2006 |
| 7124627 | Air filter restriction sensor assembly An air filter restriction sensor assembly for use on an engine, such as a small gas engine provides a simple on/off system with remote indicating to notify the operator of the air restriction. More specifically, the air restriction in the air intake line of the engi... | 10/24/2006 |
| 7113404 | Liquid cooling system A liquid cooling system, comprises: heat-receiving jacket 7, thermally connected with a heat-generation element, a pump attached onto a radiator 1a, and a tank portion 2 on the radiator 1a, wherein a coolant liquid is circul... | 09/26/2006 |
| 7055392 | Micromechanical pressure sensor A micromechanical pressure sensor which is made up of at least one first component element and a second component element bordering on the first component element. In this context, the first component element includes at least one diaphragm and one cavity. The cavit... | 06/06/2006 |
| 7043960 | Self-calibrating pressure transducer A self-calibrating pressure transducer is disclosed. The device uses an embedded zirconia membrane which pumps a determined quantity of oxygen into the device. The associated pressure can be determined, and thus, the transducer pressure readings can be calibrated. T... | 05/16/2006 |
| 7013702 | Dynamic pressure generator A device, system, and method for determining the sensing performance of pressure-sensing devices. The device generates dynamic pressure waveforms that enable researchers and medical personnel to accurately assess the characteristics and performance of a particular p... | 03/21/2006 |
| 6848292 | System for calibration of pressure transducers The present invention relates to system for calibrating plurality of pressure transducers, said system comprising plurality of pressure transducers (13.1 to 13.n) mounted on a mounting means (12) which receives pressure input from a pressure sou... | 02/01/2005 |
| 6701791 | Modular piston gauge method and apparatus A device for accurately measuring the pressure (Pg) of very highly pressurized gas includes a cylinder (16) having a cylindrical outer surface (16A) and a bore extending through the cylinder and an elongated piston (23) rotatable and vertically movable in... | 03/09/2004 |
| 6688156 | Tester for pressure sensors The invention relates to a tester for pressure sensors in the wafer compound or isolated pressure sensors having a recess for the pressure sensors as well as means for electrical contacting of the electrical connections of at least one of the pressure sen... | 02/10/2004 |
| 6581436 | Pressure sensor with means for re-calibration A pressure sensor for measuring a pressure p contains a membrane with a front and a rear clamped into a body. The pressure p can be applied to the rear of the membrane. The front of the membrane is actively linked to a piston. In addition, a force transmi... | 06/24/2003 |
| 6321585 | Differential pressure generator Differential pressure generator 100 includes a stacked pair of opposed novel gravity transducers of the inverted-cup falling-cylinder type. First enclosure 21 contains a first gravity transducer 23 and second enclosure 31 contains a second gravity transdu... | 11/27/2001 |
| 6170316 | Pressure and vacuum switch testing tool A tool for testing pressure/vacuum engine control switches includes a first and second housing. The housings each include inner and outer passages. The housings are attached with the inner passages placed adjacent each other. When attached, the housings f... | 01/09/2001 |
| 6161417 | Restriction indicator for air cleaners A restriction indicator for an air cleaner of an internal combustion engine. A bellows-type diaphragm is biased toward a retracted position by a first end of a compression spring. A calibration wheel threadingly engaging the housing supports a second end ... | 12/19/2000 |
| 5837881 | Pressure gauge calibrating device The invention relates to a pressure source calibrator which allows testing and calibrating of a pressure gauge or other device mounted in a particularly difficult-to-access area. The calibrator is lightweight, portable and operates with an external source... | 11/17/1998 |
| 5693871 | Low differential pressure generator A method and apparatus for evaluating low differential pressure transducers includes a pressure generator in the form of a piston-cylinder assembly having a piston that may be manually positioned precisely within the cylinder to change the volume and thus... | 12/02/1997 |
| 5620005 | Calibration apparatus for the pressure gauges of a whole-body plethysmograph A whole-body plethysmograph having a calibration of the pressure gauge is provided, which includes an air tight, lockable cubicle for the reception of a person to be examined, a cubicle-pressure pressure gauge that responds to the interior pressure of the... | 04/15/1997 |
| 5553481 | Pressure detecting apparatus of injection molding machine A pressure detecting apparatus of an injection molding machine is utilized for always keeping an accurate zero adjustment point and accurately and precisely detecting pressure without being influenced by temperature drift. The pressure detecting apparatus... | 09/10/1996 |
| 5324181 | Precisely adjustable pneumatic calibration pump A pneumatic calibration system and the pump therefore, the system comprising a first fluid containing chamber for attachment to a device to be tested, a valve coupled to the first chamber to remove the fluid from the first chamber and a pump structure for... | 06/28/1994 |
| 5140862 | Injection pump calibration device An injection pump calibration device insertable in place of an actual syringe in an infusion syringe pump is described. The housing is shaped like a syringe body and configured to detachably mount in place of an actual syringe in an infusion syringe pump.... | 08/25/1992 |
| 4815313 | Syringe pressure calibration reference A compact, inexpensive, and lightweight pressure calibrator and a method for calibrating pressure monitoring devices. The pressure calibrator (10) comprises a plunger (14) sized to slide snugly within a hypodermic syringe barrel (12). Included within the ... | 03/28/1989 |
| 4813265 | Apparatus for providing calibrated gas pressure Apparatus for providing a calibrated gas pressure comprising a piston mounted within a cylinder, there being provided a gap between adjacent walls of the piston and cylinder, the cylinder being generally closed at one end so as to provide a closed chamber... | 03/21/1989 |
| 4776201 | Method and apparatus for calibrating a differential pressure transducer A low range differential pressure transducer is connected in a closed fluid system which also contains a U-tube filled with oil in its upper portion and mercury in its lower portion. Under conditions of high line pressure similar quantities of oil are dis... | 10/11/1988 |
| 4766765 | Multiphase valve testing A portable test device for set point and leakage testing of a variety of sizes of pressure relief valves using the actual operating fluid under realistic test conditions includes a housing having a cylindrical bore, a main piston slidable in the bore to f... | 08/30/1988 |
| 4761999 | Set pressure verification device and method Test apparatus is provided for measuring the set pressure of a valve coupled to a port in a pressure line. The valve includes a closure element movable between a first limit position sealing the port and a second limit position opening the port. Spring lo... | 08/09/1988 |
| 4698998 | Pressure calibration systems and control valve assemblies High-pressure, micrometering valves requiring low-actuating torque are combined in a lightweight, portable pressure calibration console, housed in a common valve block. A manual pressure valve and a manual vent valve connect compressed gas from an interna... | 10/13/1987 |
| 4664635 | Simulation device A test device for electronic pressure gauges used by underwater divers is described. The device, comprised of a pressure transmitter which is capable of being connected to the electronic pressure gauge's sensor, is used to simulate the pressure encountere... | 05/12/1987 |
| 4646556 | Process and apparatus for testing a pilot-operated safety valve Process and apparatus for testing a pilot-operated safety valve, applicable to (1) a safety valve composed of a body having an inlet branch connected to a pressurized fluid container, and an outlet branch, of a valve head cooperating with a seat for contr... | 03/03/1987 |
| 4617826 | Test system for air data sensor A test system for air data sensors includes means for mounting the system components directly on the sensor and provides a self contained source of the necessary vacuum or positive pressure as needed for testing the sensor for function. The self contained... | 10/21/1986 |
| 4561297 | Hand-held diesel engine injection tester A hand-held diesel engine tester, includes a hand operable pump, a reservoir for liquid to be pumped, connection elements for said injector and a liquid pressure indicator or a connection for a liquid pressure indicator.... | 12/31/1985 |
| 4527770 | In-service test valve Disclosed is an in-service test valve and system. The in-service test valve includes a body having a first chamber with a relatively small diameter bore and second chamber axially spaced apart from the first chamber and having a relatively large diameter ... | 07/09/1985 |
| 4519256 | Pressure transducer including a proximity sensor Fluid under pressure is routed through an input port to a bore provided within a housing. A piston is disposed within the housing for movement within the bore. A target member includes a piston portion which frictionally engages, and is received within, t... | 05/28/1985 |
| 4510970 | Dual seal in-line test valve A high pressure in-line test valve (42) is positioned to block off a first fluid pressure source (10) acting on a control valve means (32 and 34) and to provide communication with an alternate test fluid pressure source (138) for testing the control valve... | 04/16/1985 |
| 4480653 | In-service test valve Disclosed is an in-service test valve and system. The in-service test valve includes a body having a first chamber with a relatively small diameter bore and second chamber axially spaced apart from the first chamber and having a relatively large diameter ... | 11/06/1984 |
| 4384470 | Method and apparatus for testing blood vessel catheters A method and device for testing the pressure readings obtained by a pressure sensing blood vessel catheter connected to a transducer and bedside monitor. The device includes a syringe which connects with a tube to provide an airtight test chamber. The pre... | 05/24/1983 |
