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7191696 |
Rotary actuator assembly
A rotary actuator assembly is provided. The assembly has a flexible member that is attached to a piston for linear movement. The flexible member is also attached to a pinion for pivotable movement.
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6784388 |
Foot operated electrical control
Apparatus for foot operating an electrical element having a rotatable operating shaft comprising a base member adapted to be secured to a floor and defining a top opening cavity, a shaft rotatably...
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6668674 |
Pivot-less watt linkage, pivot-less watt linkage-based suspension and micromachined device incorporating same
The pivot-less Watt linkage supports a first rigid element relative to a second rigid element and permits relative motion between the rigid elements. The pivot-less Watt linkage comprises an...
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6557436 |
Displacement amplification structure and device
A displacement modifying structure for receiving an input displacement from a motor source and generating a multiplied displacement therefrom for provision to a load. The structure includes a...
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6409215 |
Operating device for anti-skid devices for vehicles
An anti-skid mechanism operating device includes an operating unit and an operating arm pivotally supported thereby and intended to carry a rotary anti-skid and to operate the latter between an...
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6394509 |
Disc drive latch
A latch for installing and removing a disk drive from an enclosure. The latch comprises a pair of guide members (14, 16), a disk drive support (12), and an actuator (40, 140). The actuator includes...
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6276895 |
Fan with centrifugal shutter mechanism
A fan has an associated centrifugal mechanism and a shutter, comprising a plurality of pivoted vanes and a central vane pivotally interconnected with a pair of heavy tie rods. The centrifugal...
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5829818 |
Covering device for a vehicle container
A device for covering and uncovering an opening of a container for a truck or trailer has a pair of pivotal arms that are mounted along opposite sides of the container with each arm having an outer...
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5819445 |
Front-end loader accessory attachment with hydraulically actuated pivotal drum assembly
An accessory attachment/conversion assembly is disclosed for use on a small front-end loader type of construction implement. One form of accessory would be a backhoe bucket. The attachment assembly...
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5779316 |
Device for extending and retracting a footrest of a chair
A chair type massaging apparatus comprising: a seat; a footrest which is pivotally mounted on a front end portion of the seat; a pivotal member for pivoting the footrest between a projecting...
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5735170 |
Pumping unit with dynamic fluid ballast
A pumping unit apparatus is provided for operating a well pump having sucker rod drive which is reciprocated from an uppermost position to a lowermost position, the apparatus having a base, a...
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5711496 |
STOL aircraft and wing slat actuating mechanism for same
A short take off and landing (STOL) aircraft is optimized for STOL performance and flight at minimum airspeed. The aircraft includes leading edge wing slats that are extended and retracted under...
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5590564 |
Bicycle control device
A bicycle control device wherein a base member is provided for attachment to a structural member of the bicycle, and a control member is mounted for movement relative to the base member. A relay...
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5524503 |
Remote operation mechanism for stroller
A remote operation mechanism for a stroller is disclosed in which a fail-safe mechanism is reset to its initial position so as to be interlocked for every remote operation without fail, to thereby...
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5491633 |
Position sensor for electromechanical suspension
An apparatus comprising a rotating element, a rotary to linear converter, a linearly moving element that linearly extends and retracts when the rotating element rotates in first and second...
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5394761 |
Linkage actuator for effecting all rectilinear or rotative movements
The present invention relates to a linkage actuator for effecting all rectilinear or rotative movements, acting on the elements (1 and 2) constituting the linkage, characterized in that it acts...
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5385063 |
Transmission mechanism for magnetic damping type step machine
A transmission mechanism for a magnetic damping type step machine includes two supporting plates bilaterally fastened to a machine base in the middle to hold a main shaft, a double-groove spool...
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5245724 |
Apparatus for wringing mops and the like
Apparatus for wringing mops, sheets, strips or other wet commodities has a housing which can be placed on top of a bucket and contains a first roller and a second roller movable radially toward and...
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4991459 |
Linear motion control arrangement
A control arrangement for translating substantially linear motion includes a control device, a controlled device, and a mechanical link interconnected between said control device and said...
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4942628 |
Helmet suspension having ratchet adjustment
A head protection or helmet suspension is shown having a ratchet adjustment apparatus for the adjustment of the suspension size where the ratchet apparatus is comprised of three parts, all...
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4926654 |
Control assembly for adjusting thermostat setting
A control assembly for a household refrigerator having a mullion partition separating the freezer compartment and the fresh food compartment with a front face and a bottom panel forming the top of...
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4865516 |
Rotatable elevating carrier for a palletizer
Lifter for loads, in particular a palletizer for stackable objects, comprising a load carrier which can be moved up and down, in particular an articulated swivel arm (16) on whose free end an...
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4859138 |
Boom for a vehicle including folding linkage between boom parts
A boom H for a vehicle A which carries a working implement K to enable operations to be carried out such as excavation or loading, comprises first (11) and second (10) parts, the first part (11)...
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4846715 |
Postage meter voice coil motor printwheel setting assembly
A voice coil motor assembly for a voice coil motor printwheel setting apparatus comprises a plate having the voice coil motor coils mounted thereon. The plate is adapted for attachment to a printed...
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4829764 |
Combustion air flow rate adjusting device for gas turbine combustor
In a combustion air flow rate adjusting device in which a cylindrical regulating ring fitted about an outer peripheral surface of an inner cylinder of a gas turbine combustor is translated along...
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4823748 |
Actuating arrangement
An actuating arrangement connected with throttle valves of suction pipes of an internal combustion engine which are to be actuated synchronously. The throttle valves include bearing shafts and...
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4813292 |
Mechanical drive with multi-ply tape
A tape-type mechanical drive including a flexible but substantially inextensible tape connected between two elements so that the tape transmits forces in tension. The tape includes a plurality of...
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4800992 |
Anti-skid device
Anti-skid device of a kind that includes a chain-provided pulley that on use if brought to contact with the side of the vehicle wheel so that when the vehicle wheel is rotated the chain pieces (2)...
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4766776 |
Single cable shift assembly
A single cable shift assembly includes a casing (30) mounted to a surface adjacent the pull-pull cables (14, 16) of a shift/throttle control linkage. A pair of pulleys (34, 36) direct cables (14,...
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4699556 |
Object handling apparatus
Apparatus for transporting flat objects having first and second faces between a first carrier and a second carrier, the apparatus comprising a mechanism for supporting the first and second...
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4697468 |
Rotary mechanism
A rotary mechanism for converting a reciprocal linear motion into an oscillating rotary motion with increased torque at the end positions. Two pressurized air cylinders 1,2 co-operate via links 14,...
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4692217 |
Readjustment device for coke oven batteries
The invention relates to a readjustment device on coking oven batteries with linkages, disposed in a master gallery so as to be movable in the longitudinal direction of the battery, for the...
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4686862 |
Low profile pump jack
A pump jack for reciprocating a string of rods in a well is disclosed in which a drive shaft having an axis below the axis of a guide wheel supported above the wall has a crank arm mounted to each...
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4631970 |
Pumping unit
A pumping unit for pumping fluids from a location beneath the surface of a field. The rotary motion of a crankarm is changed to a reciprocating motion of a pair of flexible members by pitman arms...
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4632082 |
Device for driving a rotary valve
A device molding a link member interconnecting an actuator to arms fixed onto valve shafts of rotary valves arranged in gas passages. The link member includes a control rod connected to the...
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4610176 |
Method and apparatus for isolating well pump units
The present invention relates to a method and apparatus for electrically isolating the pump unit for a well, such as an oil well and the like. More particularly, the present method and apparatus...
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4603592 |
Off-vertical pumping unit
A pumping unit or pump jack, of the walking beam type of class I geometry, is provided which is arranged to permit relatively efficient pumping of a well inclined to the vertical, by suitable...
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4573368 |
Carriage driving apparatus
A carriage for use in disc driving or the like can be driven correctly by a carriage driving apparatus comprising guide shafts extended linearly, a carriage slidably supported on the guide shafts,...
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4572028 |
Continuously variable gear device
The present invention pertains to a continuously variable gear device for converting a rotary motion into a linear motion which is dependent on the angle of rotation. The gear device comprises a...
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4525030 |
Positioner for optical element
An optical element positioner in which a carriage holding the optical element is driven in response to electrical control signals to selected locations along an optical path by a moving-iron,...
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4523737 |
Sleeve valve actuator means
An actuator means is provided for a sleeve type of valve wherein a cable or flat band is caused to rotate one end of a sleeve valve with respect to a fixed second end. The relative rotation can be...
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4505162 |
Oil well pumping apparatus and method
An oil well pumping apparatus and method has an increased walking beam distance ratio of saddle pivot-polished rod distance (DE) to saddle pivot-equalizer pivot distance (DC) of at least 1.4:1. A...
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4468977 |
Power drive for electric switchgear in which driving power is elastically transmitted thereto
Disclosed is a power drive for electric switchgear in which the driving force is elastically transmitted to an actuating member, for example, a handle. Thereby, tolerance compensation is provided...
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4466301 |
Low profile pumpjack unit
A low profile pumpjack unit for producing fluid from a borehole. The pumpjack unit has a main frame supported below ground level. An upright Sampson post is supported by the main frame. A walking...
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4445674 |
Shock absorber for an oil well pumping unit
A shock absorber for the pumping unit of an oil well, adapted to be placed between the walking beam and a string of sucker rods in the borehole. The shock absorber has a tubular body of steel (or...
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4444067 |
Power drive including a drive slide for electric switchgear
Disclosed is a power drive for electric switchgear, for example, protective low-voltage breakers. The power drive comprises a support plate and a drive slide which is guided between the support...
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4419707 |
Flexible band positioning device for a read/write head
A flexible band positioning device arranged to convert rotaty motion of an outout drum of a stepper motor to linear motion of a carriage supporting a read/write head. A flexible band is attached to...
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4404870 |
Reciprocator for paint gun
A reciprocator is provided with fixed pulleys and movable pulleys which are reciprocated upward and downward, and a slider for mounting a paint gun is connected to an end of a wire which is led...
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4366722 |
Drive connection between linear actuator and rotatable drive shaft of reversible motor
A connector for coupling the drive shaft of a reversible motor to a linear actuator, such as an actuator which carries a magnetic read-write head of a magnetic disk drive system. The actuator has a...
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4354397 |
Sucker rod shock absorber
A shock absorber apparatus connected in series relationship respective to the polished rod and bridle of a pumpjack unit. The shock absorber includes a housing within which there is supported a...
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