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8141257 |
Hand-held reciprocating power saw
A hand-held reciprocating power saw (10) includes a reciprocation member (21) for reciprocatingly moving a working tool, a compensation mass (22), a motor-driven eccentric wheel (23) having a first...
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8109809 |
Eccentric transmission with an imbalance
An eccentric transmission having an imbalance compensation element (10a-10e) and having an eccentric element (12a-12e) for converting a revolving rotary motion of an armature shaft (14a-14e) into...
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8109737 |
Reciprocating device with dual chambered cylinders
A reciprocating device which may be operated either as a compressor or an engine. Each cylinder has a reciprocating piston connected to a piston rod. Dual cylinder chambers are located in each...
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8087316 |
Flat yoke valve actuator
A Scotch yoke actuator is disclosed with a dual yoke and a diagonally symmetric design. A pair of shafts and pushing devices apply equal, opposing forces to the yoke, causing end loading forces...
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8042320 |
Workstation of a packaging machine having a lifting device
A workstation of a packaging machine comprises a lifting device (100) which is configured such that it is able to convert a rotary motion of a motor (8) into a translator motion of the workstation...
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7996996 |
Reciprocating power tool
The present invention provides a technique for achieving weight reduction of the counter weight while reducing vibration in a reciprocating power tool. A tool bit performs a predetermined operation...
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7878081 |
Portable, refrigerant recovery unit
A portable, refrigerant recovery unit for transferring refrigerant from a refrigeration system to a storage tank. The recovery unit includes two, opposed piston heads rigidly attached to respective...
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7658012 |
Drive mechanism and power tool
A reciprocating saw generally includes a housing and a motor supported by the housing. A spindle is mounted for reciprocation relative to the housing, the spindle having a front end for supporting...
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7654802 |
Reciprocating drive apparatus and method
A reciprocating drive apparatus has a driving device and a driven device, one of the devices comprising a reciprocating member mounted for movement along a longitudinal axis. At least one rotary...
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7540208 |
Reciprocal force outputting mechanism
A reciprocal force outputting mechanism includes a main body and a power component combined therewith; the main body includes a slide slot and two compression passages communicated with the slot; a...
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7384043 |
Imaging apparatus with sheet transport system employing cam actuating system
An actuator system for use with a sheet transport system having a first roller and a second roller. The actuator system includes an idler assembly and a drive assembly. The idler assembly is...
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7350302 |
Jigsaw
An outer peripheral surface of a cam has an apex disposed of distance from a rotational axis, a first region adjacent the apex opposite to the direction of rotation that increases in distance from...
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7263966 |
Dual action cylinder
A device for translating linear reciprocal motion to rotational motion includes a reciprocating linearly moving piston with a central slot. The aperture has a set of recessed annular gears opposite...
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6742266 |
Miniature reciprocating saw device
A small reciprocating saw device is provided which is adapted for one hand operation and which enables delicate sawing or filing work to be carried out. An eccentric drive arrangement includes a...
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6694862 |
Accessible hand pump
A hand-operated pump, readily accessible and useable by people with disabilities, complies with the specifications set forth in the American Disabilities Act. The reciprocating pump provides for...
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6688854 |
Compression apparatus
There is disclosed a high-pressure compressor comprising a compression mechanism for reciprocating/driving a piston with respect to a conventional cylinder by rotation of a motor and compressing an...
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6672263 |
Reciprocating and rotary internal combustion engine, compressor and pump
A rotary engine, pump or compressor with a intake/exhaust ports in end plates and a rotatably mounted block mounted in a framework. In an embodiment cylinder sets are mounted in the block and each...
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6640660 |
Pick-up and placement apparatus
Pick-up and placement apparatus including an arm that executes pick-up and placement motions and an arm drive mechanism. The drive mechanism comprising a driven rotating member having an appointed...
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6631671 |
Piston-type machine with conrod-free mechanism
The present invention pertains to the field of piston machines, mainly those that include a mechanism without any connecting rod for converting the reciprocating movement of the pistons into a...
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6607069 |
Crank drive for returning work pieces
The invention relates to a mechanism for returning processed work pieces (7) from the output side to the loading side of a processing unit, which mechanism has a transfer mechanism (1) to transfer...
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6539835 |
I-yoke mechanism
A piston machine with at least one axially movable piston in a cylinder is designed with a force conversion mechanism implying sinusoidal piston movement by rotation of the power input or power...
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6511306 |
Zero leakage valveless positive fluid displacement device
A Positive Fluid Displacement Device (PFDD) with single piece double-ended pistons connected to a crankpin for circular motion. Pistons are nested together to maintain all pistons in the same plane...
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6357125 |
Adjustable stroke mechanism for a scotch yoke assembly
A scotch yoke mechanism for converting rotational movement into reciprocating linear movement and having an adjustable stroke length. The scotch yoke mechanism includes a stroke length toggle...
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6330835 |
Scotch yoke mechanism for secure track sliding
A reciprocating scotch yoke drive mechanism connectable to a motor drive shaft, includes a yoke member connectable to the shaft which moves the yoke member in a linear reciprocating motion and a...
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6227152 |
Internal combustion engine
There is described an internal combustion engine comprising at least one cylinder and a crankcase (5), which together with the cylinder forms a common, circular cylindrical tubular body (1), and...
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6186098 |
Coaxial oscillating axisymmetric engine
A coaxial oscillating axisymmetric engine is disclosed. The engine is provided with a rotor having a plurality of rotating blades, the blades being movable relative to a plurality of fixed blades...
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6098477 |
Crank device for linear motion of connecting rod
A crank device performs power conversion between reciprocal movement and rotational movement using a planetary gear mechanism without causing inclination of a connecting rod. An internally toothed...
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6012345 |
Method for changing gears of a multiple gear manually shiftable change gear unit for commercial vehicles
The method for changing the gears of a manually shiftable change gear unit for commercial vehicles which has a main gear unit and fitted downstream thereof a combination of splitter gear unit and...
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6000264 |
Driving mechanism for moving a cutter or pitch control rod in a spring forming machine
A spring forming machine includes a machine frame, a movable member, and a driving mechanism. The driving mechanism comprises a slide plate seat, a slide plate and a cam wheel. When fitting an...
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5983845 |
Rotational motion mechanism and engine
An object of the present invention is to provide a rotary drive system and an engine which have greater toughness and which are capable of smoothly converting linear thrust force into rotary...
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5980355 |
Transmission mechanism for music box ornament
A transmission mechanism for music box ornament includes a music box which houses therein a wind-up spring and a barrel as a power source, a holding frame attached to the body has a pair of spaced...
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5879145 |
Integrated cylinder liner and valve plate for a compressor
Replace the abstract in the instant application with the following abstract: A compressor has a reciprocating piston operating in a working area to compress the working medium, a drive unit for the...
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5846059 |
Scotch yoke mechanism for multistage compressor having a spring-biased liner plate
A multistage compressor has a yoke with a cross slider and roller bearings pressed against the sides of the cross slider by spring forces to enable the cross slider to slide smoothly within the...
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5751587 |
Method for creating a conjugated profile corresponding to a conjugate surface in a motion conversion device
A method of creating a conjugated surface for use in a motion conversion device for converting linear motion into circular motion or vice versa through the use of an axially movable...
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5679991 |
Eccentric-and-oscillator engagement structure
The invention is directed to a device for converting a circular motion into a reciprocating motion, which provides for improved guiding of a drive pin arranged on an eccentric within a slide slot...
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5655404 |
Mechanism for converting reciprocal movement
A mechanism of converting a reciprocal movement into a rotary movement comprises a coulisse and a toothed unit cooperating with one another, the coulisse being shaped so that conversion of the...
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5655406 |
Rotary motion drive system
An object of the present invention is to provide a rotary motion drive system, which is capable of increasing the efficiency of converting the linear motion into the rotary motion. In the rotary...
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5649809 |
Crankshaft and piston rod connection for a double diaphragm pump
The invention relates to a double diaphragm pump having flexible diaphragms disposed in displacement spaces and connected and mechanically coupled to piston rods, the displacement spaces being...
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5647267 |
Slider of hermetic compressor
A slider of a closed-type compressor in which friction and abrasion of an inside circumferential surface of a slider shell and an outside circumferential surface of the slider can be reduced by...
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5644846 |
Reciprocating stroke drive mechanism for jigsaws
In order to improve a reciprocating stroke drive mechanism for sabre saws, with a slide (5), with a saw blade (2) which is fastened in a detachable manner to the slide (5), with a slide carrier (7)...
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5640881 |
Motion converter with pinion sector/rack interface
A device for translating rotary to linear motion and vice versa includes a reciprocating linearly moving shuttle with a central aperture. The aperture has a pair of opposing gear racks protruding...
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5588326 |
Feeding device for parts to be mounted
The feeding device for feeding parts to be mounted to at least one of an upper tool and a lower tool of a mounting machine has a carriage and at least one feeding push rod connected to the...
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5584349 |
Mechanized tool
A mechanized tool that produces rectilinear reciprocal motion for a tool carrying shaft is disclosed. In the preferred embodiment, a rotating power takeoff shaft is attached to a circular disk,...
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5581896 |
Reciprocating action tool having a stroke adjusting mechanism
A reciprocating acting tool includes a disc rotatably received in a housing and includes a shaft slidably engaged in the upper portion of the housing. The disc includes a bolt rotatably engaged in...
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5575173 |
Conjugate drive mechanism
A motion converter employs a shuttle movable in a reciprocating fashion along a rectilinear path and having an aperture therein. One side of the aperture is defined by a first trackable profile and...
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5561909 |
Battery operated saw
The electrically operated reciprocating tool includes a housing with a counterbalanced single throw crankshaft mounted for rotation within the housing. The crankshaft rotates on a central shaft,...
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5546821 |
Motion arrester for a conjugate drive mechanism
A conjugate drive mechanism of a motion converter includes a conjugate driver, which is rotatably mounted on a crankpin, and a bearing conjugate, which is mounted on a linearly movable shuttle. The...
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5532423 |
Dynamic driving structure for the ornamental music box
The present invention is related to a dynamic driving structure for the ornamental box comprising an eccentric shaft, a link rack driven by the eccentric shaft, a bracing pedestal used for...
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RE35258 |
Counterbalanced reciprocating mechanism
The motor drives the crown gear which has an upwardly projecting eccentric drive pin which drivingly engages the channel fixed on the spindle which reciprocates in the fixed tube and supports a saw...
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5494135 |
Lubrication system for a conjugate drive mechanism
A conjugate drive mechanism of a motion converter includes a conjugate driver, which is rotatably mounted on a crankpin, and a bearing conjugate, which is mounted on a linearly movable shuttle. The...
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