Class 92/30 - WITH RESILIENT DETENT

Subclass of Class 92 - Expansible chamber devices
Definition: Apparatus comprising a spring biased member having cooperative
No. of patents: 36
Last issue date: 08/12/2008

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Number	Title	Issue Date
7410038	Locking unit A locking unit for the locking of the movement of a piston. An electromagnet is provided the armature, respectively the armature bar, of which acts on an operating element. The operating element co-operates with a catching element in such a way that the catching ele...	08/12/2008
7287457	Structure for retaining a piston assembly in position relative to a cylinder A fluid actuator and retainer assembly, such as a master cylinder assembly for a vehicular braking system, includes a housing having a groove, a cylinder provided within the housing, and a piston assembly. The piston assembly includes a piston disposed within the cy...	10/30/2007
7287376	Hydraulic cylinder, in particular slave cylinder for a hydraulic clutch actuation system for motor vehicles A hydraulic cylinder comprises a piston assembly with a piston and a piston rod, a cylinder housing with a housing bottom, a pressure chamber in the cylinder housing delimited by the piston and housing bottom, a spring element which prestresses the piston assembly a...	10/30/2007
7281464	Inlet monitor and latch for a crust breaking system A system for selectively controlling movement of a piston between first and second positions, the system comprising a controller selectively actuated to enable fluid communication between a device and a source of pressurized fluid, a control valve for enabling fluid...	10/16/2007
7165469	Shift rod piston seal arrangement for a vibratory plate compactor An easily accessible phase adjustment mechanism for a vibratory plate compactor includes an improved seal arrangement to protect against leakage of internal lubricating oil into the hydraulic cylinder providing fluid pressure to the adjustment mechanism. An easily d...	01/23/2007
6910409	Oscillating actuator A rack and pinion type oscillating actuator includes a pair of parallel sliding holes formed in a body, rack members having racks slidably fitted in the pair of sliding holes, respectively, an output shaft having a pinion engaged with the racks is rotatably supporte...	06/28/2005
6902043	Driveline vehicle parking brake actuator A driveline vehicle parking brake actuator including a reciprocable piston, a spring guide having a tubular distal portion telescopically received on the piston and a radial proximal portion which is telescopically supported within the housing by an annular wear gui...	06/07/2005
6003431	Rotary actuator A rotary actuator including a housing provided with a fluid actuated drive assembly operatively connected to a rotary plate arranged to effect the drive thereof, wherein the housing and the rotary plate are provided with complementary cooperating stop abu...	12/21/1999
5868060	Quick-release cam lock A quick-release cam lock for selectively locking the relative position of a hydraulic cylinder and a piston. The quick-release cam lock permits speedy unlocking and repositioning of the hydraulic cylinder and its accompanying piston and oversleeve, thus a...	02/09/1999
5513555	Quick-release cam lock with locking pin A quick-release cam lock for selectively locking the relative position of a hydraulic cylinder and a piston. The quick-release cam lock permits speedy unlocking and repositioning of the hydraulic cylinder and its accompanying piston, thus allowing for spe...	05/07/1996
5026246	Hydraulic cylinder detent A backhoe pivotally supported from a prime mover is disclosed wherein the hydraulic cylinders operably connected to the outrigger stabilizers are provided with a detent to maintain the outrigger stabilizers in an elevated transport position until being pr...	06/25/1991
4856411	Overload release system for an axially movable bolt An apparatus is proposed for releasably locking a bolt in the axial direction relative to a housing element surrounding it, in which the bolt has a circumferential groove tapering radially inward and a locking element inserted into this groove with a cros...	08/15/1989
4811983	Gas spring with latching stop mechanism for use on skid-steer loaders A gas spring for supporting a cab enclosure pivotably mounted to the body of a skid-steer vehicle. A stop tube is mounted to a piston rod and is telescopically cooperable with a cylinder body. Two parallel slots extend in a transverse direction through th...	03/14/1989
4805873	Control device for a starter valve of a turbine aero-engine The spindle of a butterfly valve for controlling the supply of compressed air to the starter of a turbine aero-engine is rotated to open and close the valve by the linear movement of a slide in a cylinder in response to the pressure differential between a...	02/21/1989
4531422	Transmission shift rod interlock system A shift rod air interlock system provides a mechanical apparatus for insuring a neutral position in a two-speed air shifted compound transmission whenever air to an auxiliary air shift cylinder is interrupted. The apparatus prevents the transmission from ...	07/30/1985
4527780	Piston locking for gas springs A pneumatic or gas spring includes a cylinder filled with gas under pressure and a piston which is slidably movable in the cylinder, the piston being fitted at the end of a rod which is gastightly and slidably guided through a closure bottom of the cylind...	07/09/1985
4458887	Gas spring locking mechanism A gas spring comprising a cylinder, a rod slidably extending from the cylinder, and a novel locking mechanism. The mechanism comprises first and second axially contiguous recesses in the circumference of the rod, a locking member normally located in the f...	07/10/1984
4445420	Power boost mechanism A power boost mechanism for converting pilot linear throttle input commands to rotary motion and providing amplification of output torque to an engine fuel control and having an output shaft adapted for connection to an engine power lever assembly. An inp...	05/01/1984
4445393	Fluid actuated shift bar housing assembly A fluid actuated shift bar housing assembly for a change gear transmission wherein the shift bars are biased to an axially centered neutral position by constant fluid pressure in a constantly pressurized chamber and are selectively axially moved to an axi...	05/01/1984
4426915	Fluid-operated servomotor for actuation of clutches or the like A servomotor which actuates the throw-out device of a clutch, particularly in an automotive vehicle, has a piston which is reciprocable in a housing and is adapted to be coupled to a reciprocable motion transmitting rod for the throw-out device by a compe...	01/24/1984
4412671	Plate valve The plate valve has a housing forming an inlet spigot and an outlet spigot. A movable valve member provided with a closure plate and an orifice plate is movable radially of the spigots via servo-pistons which are rigidly connected to the valve member. The...	11/01/1983
4381047	Piston anti-knock back assemblies A piston anti-knock back assembly in a disc brake assembly having a brake actuator comprising a piston slidably mounted within a cylinder bore and operable to urge a fricton surface into contact with a rotary disc surface upon supply of hydraulic fluid un...	04/26/1983
4368871	Lubricator valve apparatus A lubricator valve apparatus adapted for use when running wireline tools into an offshore well during a production test of the well. The valve includes a valve body having a central flow passage and a ball valve element for opening and closing the passage...	01/18/1983
4304171	Power boost mechanism A power boost mechanism for converting pilot linear throttle input commands to rotary motion and providing amplification of output torque to an engine fuel control and having an output shaft adapted for connection to an engine power lever assembly. An inp...	12/08/1981
4257315	Assembly with relatively displaceable members An assembly comprising an inner and an outer cylindrical members, the inner member being displaceable within the outer member and provided with an annular recess, a locking ring being housed in the recess to allow displacement of the inner member in a fir...	03/24/1981
4242945	Assembly with relatively displaceable members An assembly comprising an inner and an outer cylindrical members, the inner member being displaceable within the outer member and provided with an annular recess, a locking ring being housed in the recess to allow displacement of the inner member in a fir...	01/06/1981
4109899	Shock absorbing device with restoring inhibiting means Shock absorber effectively absorbs shock to bumper of automobile by compressive deformation of cushion, regardless of direction from which shock comes. Shock absorber comprises hollow tubular cushion placed within cylinder having one end closed. Plunger f...	08/29/1978
4096927	Shock absorber Shock absorber characterized in that a hollow tubular cushion is placed within a cylinder with one end closed. A plunger fits within the open end of the cylinder to compress and deform the cushion. Shock applied to the plunger is mitigated by the resistan...	06/27/1978
4077303	Apparatus for generating an impact force A mechanism for generating a high impact force for hammering, pounding, stamping, forging or similar operations. A piston is slidably mounted in a fluid pressure chamber, and has a larger cross sectional area at one end of the chamber than at the other en...	03/07/1978
4050674	Hydraulic jack A hydraulic jack comprising a cylinder, a piston slidable relative to the cylinder, pump means to supply pressurized fluid to the base of the piston, a seal between the piston and the cylinder, means for limiting the stroke of the piston in the cylinder, ...	09/27/1977
4024800	Actuating and bracing jack An actuating and bracing jack comprising a cylinder and a rod which are pivotably connected at their free ends to a fixed member and to a moveable member respectively. The cylinder has at least at one of its extremities, an internal resilient catch member...	05/24/1977
3994205	Device for discontinuing and automatically restoring the operational function of a spring brake actuator An actuator for a spring brake used for parking and emergency has a spring operating on the brake push rod which will apply braking unless fluid pressure in the braking system applied to a piston overcomes spring pressure. To disable the spring brake the ...	11/30/1976
3978771	Mechanical piston retention for free wheeling A fixed displacement fluid motor or pump of the ball or roller piston type in which a plurality of axially or radially extending reciprocating pistons coact with a cam track to produce output motion or to generate pressure fluid output, respectively. A me...	09/07/1976
3977304	Spring-loaded brake cylinder for a railway vehicle brake A spring-loaded brake cylinder has a piston therein one side of which is loaded by a spring and the other side of which is subjected to a pressure medium introduced into the cylinder. The cylinder is provided with an auxiliary release device comprising a ...	08/31/1976
3969988	Arresting device for impact drive tools An impact drive tool is provided with a percussive piston arranged in a cylinder. A rod on the piston is mounted to drive a nail or other object into a workpiece. A valve arrangement is provided to apply compressed air to the upper surface of the piston, ...	07/20/1976
3943829	Vehicle wheel brake actuators A vehicle wheel spring brake actuator has a service braking piston and cylinder assembly and an auxiliary parking or emergency braking piston and cylinder assembly, the emergency braking piston being spring biassed towards a brake-applying position and no...	03/16/1976

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Class 92/30 - WITH RESILIENT DETENT