Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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 |
| 7373872 | Diaphragm pump A diaphragm pump (1) is provided with an annular working chamber (6) and an annular diaphragm (3), which is fixed on its outer peripheral region (12) and on its inner edge region (13). The inner and the outer diaphragm fixing point... | 05/20/2008 |
| 7367891 | Techniques for controlling transfer of torque using detent members responsive to radial force A torque limiting device includes a base configured to reside in a fixed position relative to a drive unit, an input shaft assembly configured to receive a torque load from the drive unit, and an output shaft assembly which is capable of rotating about an axis. The ... | 05/06/2008 |
| 7367238 | Test apparatus using a pneumatic collet and method to clamp a bar A pneumatic collet assembly has a housing, a piston, a collet, and ball bearings. The piston is disposed within the housing. A bore within the piston receives the collet. The collet has a base and fingers. The fingers of the collet define a center channel or bore co... | 05/06/2008 |
| 7353747 | Electroactive polymer-based pump Methods and devices for pumping fluid are disclosed herein. In one exemplary embodiment, a pump is provided having a first member with a passageway formed therethrough, and a plurality of electrically expandable actuators in communication with the first member and a... | 04/08/2008 |
| 7100491 | Fluid-powered mechanical actuator and method for controlling A fluid-powered mechanical actuator having a proximal end and a distal end and having a plurality of hollow tubular elements hingedly connected in end-to-end linked relationship to form a variable angle therebetween, each such link having one degree of freedom; prov... | 09/05/2006 |
| 7086276 | Temperature correction method and subsystem for automotive evaporative leak detection systems A method and sensor or sensor subsystem permit improved evaporative leak detection in an automotive fuel system. The sensor or sensor subsystem computes temperature-compensated pressure values, thereby eliminating or reducing false positive or other adverse results ... | 08/08/2006 |
| 7040301 | Fuel system with integrated pressure management A fuel system supplying fuel to an internal combustion engine of a vehicle. The fuel system includes an integrated pressure management system managing pressure and detecting leaks in the fuel system. The integrated pressure management system also performs a leak dia... | 05/09/2006 |
| 7025084 | Integrated pressure management system for a fuel system An integrated pressure management system manages pressure and detects leaks in a fuel system. The integrated pressure management system also performs a leak diagnostic for the head space in a fuel tank, a canister that collects volatile fuel vapors from the head spa... | 04/11/2006 |
| 6994122 | Heald frame for weaving machine A heald frame for a weaving machine includes stops (15, 16) made of a material with shock-absorbing properties associated with the ends of the healds (10). A gap is provided between the heald ends and the stops, such gap ensuring that the healds can be... | 02/07/2006 |
| 6931919 | Diagnostic apparatus and method for an evaporative control system including an integrated pressure management apparatus A diagnostic appartus and method for a fuel system that supplies fuel to an internal combustion engine. The fuel system includes a fuel tank that has a headspace and a filler occluded by a removable cap, a charcoal canister in fluid communication with the headspace,... | 08/23/2005 |
| 6910500 | Integrated pressure management system for a fuel system An integrated pressure management system manages pressure and detects leaks in a fuel system. The integrated pressure management system also performs a leak diagnostic for the head space in a fuel tank, a canister that collects volatile fuel vapors from the head spa... | 06/28/2005 |
| 6827001 | Pressure actuator diaphragm casing with air passages A control valve pressure actuator of the pressure-to-close type is provided with a housing in which an upper diaphragm casing thereof includes one or more air passage channels. Each of the air passage channels facilitates circulation of air above a diaphragm within ... | 12/07/2004 |
| 6427577 | Load bearing apparatus for use with fluid power systems A load bearing apparatus includes a first container having enclosed ends and at least one expansion segment. The expansion segment includes a first cylinder and a second cylinder of diameter smaller than the first cylinder disposed along a longitudinal ax... | 08/06/2002 |
| 6352455 | Marine propulsion device The propulsion device (10) includes a housing (12) having an incoming end cap (14) and an outflowing end cap (16). A tubular bladder (20) within the housing is interconnected to each end cap, thereby varying the volume of both a chamber (22) within the bl... | 03/05/2002 |
| 6223648 | Artificial muscle actuator assembly A flexible actuator assembly (20) including a flexible bladder device (22) having an expandable sealed chamber (23) adapted to substantially directionally displace between a deflated condition and an inflated condition, displacing a proximal portion (25) ... | 05/01/2001 |
| 6178871 | Actuator and method of operating same Actuator (140) for providing intermittent movement to a member (151). The actuator (140) has actuator cushion members (150) which extend with the entry of air and which contract with the egress of air provided through air supply lines (151, 152) connected... | 01/30/2001 |
| 6145430 | Selectively bonded pump diaphragm A selectively bonded two-ply diaphragm for a diaphragm pump having adjacent first and second layers of the diaphragm which are selectively bonded at the interface between the layers in at least one attachment portion, which is adapted for attachment to a ... | 11/14/2000 |
| 6067892 | Artificial muscle actuator assembly A flexible actuator assembly (20) including a flexible bladder device (22) having an expandable sealed chamber (23) adapted to substantially directionally displace between a deflated condition and an inflated condition, displacing a proximal portion (25) ... | 05/30/2000 |
| 5638737 | Spline pumping assembly The present invention relates to a piston assembly for use in a fluid delivery system. The piston assembly is comprised of two elements: a splined-piston having generally a convex shape and a ribbed-base, that receives the piston, which has a complementar... | 06/17/1997 |
| 5468128 | Sealed piston pump A sealed piston pump having in an open cavity of the pump body, a circular single-piece set formed by a central cylindrical piston. The piston is coupled by a rod to a driving member while the piston in an alternating motion along its longitudinal axis. A... | 11/21/1995 |
| 5421242 | Membrane arrangement for a pressure switch or for a pressure-responsive transmitter and process and apparatus for assembling the arrangement A membrane supporting plate (10) includes on its outer rim (20) an axially directed ring groove (30), into which an annular membrane (22) is inserted, free from distortion, by its clamping boss (28) disposed on its inner rim. A beaded rim (32) disposed ne... | 06/06/1995 |
| 5291822 | Diaphragm for pressure regulators and method of making A method of making and the product of the method in a diaphragm for use in a pressure regulator, or other similar uses, where leakage around the confined edges of the diaphragm must be avoided. The structure confining the edges of the diaphragm consists o... | 03/08/1994 |
| 5249508 | Actuator of diaphragm type An actuator (1) of a diaphragm type which comprises an actuator case (2,3), a diaphragm (5) housed in the actuator case, a diaphragm plate (4) attached to the diaphragm for moving together with the diaphragm according to introduction of negative or atmosp... | 10/05/1993 |
| 5052276 | Diaphragm construction An improved diaphragm, which operates and has the structure of a short-thick beam, is comprised of a plug having a channel, a tire cord reinforcement is bonded to the plug, an elastomer cured to the reinforcement means, and a sleeve bonded to the elastome... | 10/01/1991 |
| 4876946 | Flexible hose pump A pump comprising a casing (1) having interior space in which there is provided a flexible hose (2) mounted for reciprocations having one end (5) thereof which is turned inside out and secured along the perimeter to the inner wall of the casing (1), and t... | 10/31/1989 |
| 4858716 | Two wheel/four wheel drive change over apparatus for four-wheel drive vehicles A two wheel drive/four wheel drive change over apparatus for four-wheel drive vehicles includes an actuator having a vacuum chamber. A tank storing an engine vacuum through a check valve is integrally formed in the vacuum chamber, whereby the engine vacuu... | 08/22/1989 |
| 4797070 | Displacement compressor for supercharging of combustion engines An internal combustion engine is connected to a supercharger which is powered by exhaust energy for compressing and feeding of the air charge. The supercharger has at least one exhaust chamber and one air compression chamber both having an intake and an o... | 01/10/1989 |
| 4487110 | Clamping element A clamping element comprises a single-acting cylinder and a piston with strong spring return which can be cancelled out by introduction of a pressure medium into the pressure chamber of the cylinder. The spring return is brought about, at least mainly, by... | 12/11/1984 |
| 4474540 | Tubular diaphragm pump The invention is comprised of a hydraulically actuated diaphragm pump having a working diaphragm driven by a piston and a working fluid. The working diaphragm, in turn, actuates a tubular diaphragm through a second hydraulic coupling. Material is pumped t... | 10/02/1984 |
| 4429622 | Pressure responsive actuator for use with an automatic dump valve A valve for automatically dumping a load of solids entrained within a fluid transport medium in response to flow interruption is disclosed. The automatic dump valve is particularly well-suited for use in combination with a module transport riser in deep o... | 02/07/1984 |
| 4111613 | Bladder actuated pumping system A pumping system using an air actuated bladder type member to propel liquids out and to refill the pump. Invention covers such novel pumps and an overall dispensing system. Useful in pumping and dispensing liquids generally and is especially useful in dis... | 09/05/1978 |
