Class 92/64 - One a flexible wall type

Subclass of Class 92 - Expansible chamber devices
Definition: Apparatus in which one of said working members has at least
No. of patents: 40
Last issue date: 01/11/2005

Number	Title	Issue Date
6840745	Diaphragm pump including a wobble plate A diaphragm pump comprises a two part casing formed of a front cover (10) and a back cover (12). A diaphragm plate (14) extends across the covers (10,12) and is secured therebetween when the covers (10,12) are fastened together. Th...	01/11/2005
6732015	Robot system A robot system includes a plurality of segments 3, joints 4 for linking the segments together, drive units 5 for actuating the joints, and a controller 8 for controlling the drive units. Further, the robot system has bladders 2 fil...	05/04/2004
6536329	Brake actuator having tamper resistant riveted spring chamber A spring brake actuator having a flange case and a head is provided. The flange case and the head each have a radially outwardly extending annular flange having a plurality of radially spaced apart axial holes passing therethrough which correspond to and ...	03/25/2003
6318240	Brake actuator An improved brake actuator, particularly an improved sealed service chamber, having a flexible tubular seal affixed at one end in the central pushrod opening in sealed relation and surrounding the pushrod in sealed relation in the service chamber housing....	11/20/2001
6148713	Elastomeric surface actuation system A system for deforming or actuating an elastomeric structure is described. he system includes a plurality of tubes joined to the elastomeric structure. The tubes extend in the direction of a desired strain to be applied to the elastomeric structure and are...	11/21/2000
6116141	Pneumatic brake booster with control chamber A pneumatic brake booster having a right casing (10) divided in a leaktight fashion by a first moving partition (12) into a front chamber (14) and a rear chamber (16). The front chamber (14) being permanently connected to a source of low pressure (V) with...	09/12/2000
6003433	Tamper-resistant brake actuator A fluid-operated combination diaphragm spring brake has a tamper-resistant connection between a head and a flange case which together form a spring chamber housing a power spring. The head has an annular flange and an axial rim, and the flange case has an...	12/21/1999
5568761	Pneumatic Jack Pneumatic jack of the type comprising a rigid body (1) joined to the outer edge of a deformable membrane (2) so as to delimit with the latter a chamber of variable volume capable of being subjected to either atmospheric pressure of a negative pressure, vi...	10/29/1996
5351602	Jointed assembly actuated by fluid pressure The invention is an assembly of a plurality of relatively movable jointed mbers such as robotic arm segments and a mechanical muscle connected between two of the segments. The muscle has a longitudinally inflexible, radially expandable sleeve containing a...	10/04/1994
5016523	Adjustable mounting apparatus for air-operated diaphragm brakes An air-operated diaphragm spring brake (10) is provided with a mounting means (16) which permits adjustment of the position of the pneumatic ports (30, 32) on the brake with respect to the vehicle. The mounting means (16) comprises a plate (84) mounted to...	05/21/1991
4887513	Brake cylinder with bayonet connection The present invention teaches a brake cylinder which is formed by a cylindrical housing and a cylinder base. The cylindrical housing and cylinder base are joined together by a bayonet connection and form a pressure chamber. The bayonet connection is desig...	12/19/1989
4860640	Air operated diaphragm spring brake An air-operated spring brake of the type wherein a spring-operated brake actuator is in tandem with an air-operated service brake actuator has a spring diaphragm which separates a spring housing into a fluid pressure chamber and a spring chamber. A spring...	08/29/1989
4841843	Device for converting energy of fluid medium into mechanical work A device for converting energy of a fluid medium into mechanical work comprises a hermetically sealed chamber (1) communicated through valves with systems for supply and discharge of a fluid medium. The chamber has an opening (4) in which a sleeve (5) of ...	06/27/1989
4821626	Pressostat for pressure sensitive activation A pressostat comprises an operating pressure chamber (4) which is limited by its housing (1) and by an operating membrane (5) or the like including a pressure surface for an output adjustment member (3), at least one spring counteracting the pressure (P) ...	04/18/1989
4729290	Fluid pressure actuated spring brake cylinder Disclosed is a spring brake cylinder for use on motor vehicles. The cylinder is actuated to a release position in response to fluid pressure. The cylinder includes a spring actuator inserted between the brake cylinder base and a spring brake piston. A ten...	03/08/1988
4703684	Vacuum control device for the displacement of an element between at least three positions A vacuum control device comprises a casing in which are disposed at least two substantially parallel movable cups, the first cup being connected to the element to be displaced. Springs are interposed respectively between the two cups and between the secon...	11/03/1987
4638723	Reduced pressure control device for moving a movable member between three positions A housing (10, 12, 14) has first and second flexible membranes (32, 42) dividing it into two sealed chambers plus a third chamber from which the movable member (38) projects. Each membrane co-operates with a respective cup (40, 50) and return springs (54,...	01/27/1987
4629257	Braking corrector Control device for a braking corrector (10) capable of being imposed between a source of hydraulic pressure and a motor vehicle braking circuit, of the type incorporating a casing (12) provided with at least one bore (14, 14') a plain or differential hydr...	12/16/1986
4612847	Vacuum control device for the displacement of an element between at least three positions A vacuum control device comprises a casing in which are disposed at least two substantially parallel movable cups, the first cup being connected to the element to be displaced. Springs are interposed respectively between the two cups and between the secon...	09/23/1986
4559866	Crossed-bellows controller A crossed-bellows controller which includes four bellows arranged in cruciform. The bellows are surrounded by a movable baffle ring which serves as a baffle plate for a nozzle. A frame-shaped cage is provided within the baffle ring, with the cage being co...	12/24/1985
4522111	Double-acting, fluid actuated positioning actuator An infinitely variable, double-acting positioning linear actuator which responds proportionally to fluid pressure includes a hollow cylindrical housing and an actuating rod axially movable through the housing. Two partitions cooperate with the actuating r...	06/11/1985
4502280	Hydraulic applications An apparatus that controls movement of an arm through a gaseous or liquid fluid. The apparatus incorporates a plurality of longitudinally extensible hose members that expand and contract their respective lengths responsive to introduction and withdrawal, ...	03/05/1985
4475439	Tandem brake booster A tandem brake booster (10) having first (24) and second (28) walls that move in opposite directions within a cavity to produce an output force. A lever arrangement (48) attached to the second (28) wall engages a fulcrum (70) to transfer a force produced ...	10/09/1984
4346573	Fluid pressure servomotor A fluid pressure servo motor comprises a body having two operatively independent fluid chambers each chamber having therein a piston means movable in response to a fluid pressure differential so as to alter in use a two condition device from one to the ot...	08/31/1982
4305327	Pressurized gas engine An engine is provided which converts pressurized gas into useful mechanical energy. The engine uses pressurized gas in such a way to avoid contact between the gas and sliding metal parts. As such, the engine is particularly adapted for use with naturally ...	12/15/1981
4282800	Fluid pressure actuator This invention relates to fluid pressure servo motors having two operatively independent fluid chambers, each chamber having a piston means therein movable in response to a fluid pressure differential so as to alter in use a two position device from one t...	08/11/1981
4263840	Safety brake mechanism An improved spring guide incorporating a collapsible telescoping sleeve assembly is used in conjunction with a conventional fluid pressure operated brake of the type having a safety brake mechanism which employs a spring powered brake actuator for automat...	04/28/1981
4237076	Two stage vacuum break A two stage vacuum break or fluid motor device of the type used to control choke valves of internal combustion engine carburators. The motor uses a single diaphragm in which the fluid motor plunger operates in a first stage in response to movement of a po...	12/02/1980
4231286	Brake actuators Brake actuators are provided which use pistons for both auxiliary and service functions, the auxiliary piston being operative to compress a spring in response to fluid source pressure and the service piston being operative to develop throughout its moveme...	11/04/1980
4225193	Control valve arrangement for combined brake cylinder and reservoir Brake apparatus for a railway vehicle including a brake cylinder device of the type having a pair of interconnected pistons to which the vehicle brake rigging is connected, the larger piston having a pair of chambers formed on opposite sides in which air ...	09/30/1980
4215625	Adjusting actuation operated by pressure medium An adjusting drive operated by a pressure medium with a spring-loaded roller diaphragm secured to plates and displaceable within a housing by the pressure medium; the roller diaphragm actuates an adjusting member that is securely connected with a plate an...	08/05/1980
4179244	Rotary low pressure air displacement pump A low pressure air displacement pump including one or more cylinders or bellows powered by rotary or reciprocating motivation means. This device employs two or more bellows radially disposed and activated by a singular rotary source of power which imparts...	12/18/1979
4098245	Apparatus for controlling the ignition timing of an internal combustion engine Apparatus for controlling the ignition timing of an internal combustion engine provided with an exhaust gas recirculation system. A vacuum advancer has a diaphragm mechanism to control the vacuum ignition timing in response to negative pressure in the car...	07/04/1978
4093038	Spring brake assembly The invention relates to a spring brake assembly of the compressed air type for truck tractor types of vehicles. The brake actuators of the assembly each includes a heavy coil type emergency spring which is held in a compressed state on the back side of a...	06/06/1978
4058348	Brake apparatus with a combined brake cylinder and reservoir This invention relates to a novel railway vehicle brake apparatus that comprises a brake cylinder device having two tandem-connected pistons of unequal size, the larger of which is provided with a check valve and cooperates with a hollow cylindrical body ...	11/15/1977
4031814	Self-centering spring actuated auxiliary brake mechanism A fluid brake actuating mechanism is described which includes a service brake chamber and a spring actuated auxiliary brake chamber. A device for centering the spring in the auxiliary brake chamber, not only under static conditions, but also under dynamic...	06/28/1977
4000226	Carburettor for an internal combustion engine A carburettor for an internal combustion engine includes a chamber into which fuel is introduced from a metering valve to produce a fuel/air mixture in the chamber. A main valve controls the rate of flow of fuel/air mixture from the chamber and a further ...	12/28/1976
3985064	Device for displaceably supporting a load A device for displaceably supporting a body in relation to a support surface comprising at least two elastic elements positionable between the support surface and a surface of the body and separately expansible and contractible in a direction towards and ...	10/12/1976
3975989	Pressure responsive force transmission apparatus Pressure responsive force transmission apparatus such as may be used in automatic controls and for hydraulic and pneumatic lift or force mechanisms comprises a pair of substantially rigid lift elements each having a base plate, at least two guide arms pro...	08/24/1976
3958497	Wall means for a servomotor A movable wall assembly for use in a servomotor having a resilient diaphragm with a bead radially compressed in a groove on a hub by a backing plate to form a seal between a vacuum chamber and a power chamber. The diaphragm correspondingly axially urges t...	05/25/1976

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Class 92/64 - One a flexible wall type