Class 74/57 - Grooved

Subclass of Class 74 - Machine element or mechanism
Definition: Mechanisms, including a cam and slide, the cam being of
No. of patents: 147
Last issue date: 02/02/2010

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Number	Title	Issue Date
7654164	Travel multiplying device (57) A travel multiplying device (1) has at least one outer pipe (2), one inner pipe (3) and one intermediate pipe (4) positioned between them, which can be moved relative to each other in the longitudinal direction (5) each...	02/02/2010
7438027	Fluid transfer in reciprocating devices The disclosure relates to fluid working devices including reciprocating internal combustion engines and pumps. A number of arrangements for pistons and cylinders of unconventional configuration are described, many intended for use in IC engines operating without coo...	10/21/2008
7300035	Valve, actuator and control system therefor A valve actuator comprising a lower housing comprising a mounting spool that is operable to couple to a valve body. A rotating sleeve is disposed within the lower housing and coupled to a stem connector. A fixed sleeve in disposed within the lower housing and includ...	11/27/2007
7278777	Hand held concrete vibrator A concrete vibrator powered by a portable drill includes a housing having a contacting pad at one end and an axial bore. A camshaft is received within the bore. A transverse retainer is secured on the camshaft for retaining the camshaft within the bore. The camshaft...	10/09/2007
7275454	System for the conversion of a rectilinear swaying motion into a rotating motion and vice versa A grooved cylinder (2) is alternatively mobile in two opposing cylinder guides (10, 11) mounted on a crankcase (14). This cylinder (2) is mounted coaxially inside a double crown piece of revolution (5) with an indented portion (...	10/02/2007
7259923	Lens barrel A lens barrel, including, a moving frame (2) to hold a lens (8), a direct-advance ring (4) provided on an outer periphery of the moving frame and movable relative to the moving frame in an optical direction, a resilient member (6) provide...	08/21/2007
7252017	Axial adjusting device with multiple ball means An axial adjusting device comprising two discs which are rotatable relative to one another, which are supported coaxially relative to one another and between which there are guided balls in pairs of ball grooves whose depth varies across the circumference. Of the di...	08/07/2007
7237449	Drive mechanism and movable table unit provided with the same A drive mechanism is interposed between two members to make the members move relatively with respect to each other. At least one of the two members is guided to move linearly. The drive mechanism comprises: cam followers that are rotatably supported on one of the tw...	07/03/2007
7152858	Guiding and positioning apparatus and method thereof A guiding and positioning apparatus for accurate guiding and input of a print media sheet to a business machine. The guiding and positioning apparatus includes a rotating shaft, a retaining member, a guiding member, a sliding member, a roller, a first spring, a seco...	12/26/2006
7137420	Mortiser tool A mortiser tool comprises a drill bit, a cutting element mounted around the drill bit and a motor means. In use a motor rotates the drill bit independently of the cutting element, and in use a motor moves the drill bit in a first reciprocating action, in which the c...	11/21/2006
7134508	Rotary to reciprocating motion conversion attachment for a power rotary hand tool A preferred embodiment of a rotary tool reciprocating motion conversion attachment for a rotary power hand tool is described which is configured to be attached to a nose portion of the hand tool housing. The attachment has a rotary drive train in a housing that is c...	11/14/2006
7117827	Means for treatment of the gases of combustion engines and the transmission of their power The disclosure relates to fluid working devices including reciprocating internal combustion engines and pumps. A number of arrangements for pistons and cylinders of unconventional configuration are described, mostly intended for use in IC engines operating without c...	10/10/2006
7066042	Advancing/retracting mechanism An advancing/retracting mechanism having a pair of cams is disclosed. The advancing/retracting mechanism includes a first cam, a second cam, and a barrel. The first cam includes an angled surface and a shoe, and the second cam includes an angled surface and a slider...	06/27/2006
7033525	High conductivity polyaniline compositions and uses therefor The present invention describes compositions formed from polyanaline and carbon nanotubes, which exhibit enhanced conductivity and which provide uses in electronic circuit applications. ...	04/25/2006
7007566	Actuator for a motor vehicle transmission An actuator for an automated transmission in a motor vehicle drive train has a central actuating shaft with a shift finger. Two sleeves are supported concentrically on the actuating shaft and can be driven in mutually independent rotation. Two grooves of opposite he...	03/07/2006
7004121	Arrangement at a piston engine and method of controlling the pistons A piston engine in the form of a piston pump or a piston engine (motor) comprises two or more piston cylinders (14b, 14c), preferably positioned with the same angular distances of 180 degrees for two cylinders, 120 degrees for three cylin...	02/28/2006
7000492	Axial adjusting device with spring support during the return motion An axial adjusting device includes two discs which are rotatable relative to one another and coaxially supported relative to one another, between which two discs balls are guided in pairs of ball grooves. The depth of the pairs of ball grooves is variable across the...	02/21/2006
6926248	Piston engine A reciprocating engine having a housing, having at least two cylinders with inlet orifices and outlet orifices which are to be opened and are closable by means of controllable valves, in each of which cylinders a piston can be linearly reciprocated, and having at le...	08/09/2005
6902525	Dual-motion auto-stimulation device A device designed to take rotary power from an external power source such as a cordless electric screwdriver and transmit that energy into both rotary and reciprocating linear activation of sexual devices used by both males and females for the purpose of masturbatio...	06/07/2005
6877235	Cutting mechanism for a saber saw A counterweight is provided to cancel axial vibration of a plunger of a saber saw. Swing rollers, rotatably supported at both ends of a roller shaft provided at a rear end of the plunger, are interposed between a pair of opposing tracks formed in an axially elongate...	04/12/2005
6860167	Transmission for a stabilizer arrangement for a motor vehicle chassis A transmission with an essentially unloaded neutral position includes two curved-path carriers each having a curved path and a coupling element configured to engage with the curved paths of the curved-path carriers. The coupling element includes an engaging element ...	03/01/2005
6772662	Reciprocating saw A reciprocating saw including a housing, a motor supported by the housing, a spindle mounted for reciprocation relative to the housing and having a front end for supporting a saw blade, the spindle being movable through a cutting stroke and a return stroke, the cutt...	08/10/2004
6758109	Cam device The cam device of the invention includes individually rotatable first and second cam followers performing predetermined movement along a groove defined by first and second sidewalls. The cam followers are positioned so that their axes extend in the same direction. M...	07/06/2004
6742267	Reciprocating saw A reciprocating saw including a housing, a motor supported by the housing, a spindle mounted for reciprocation relative to the housing and having a front end for supporting a saw blade, the spindle being movable through a cutting stroke and a return stroke, the cutt...	06/01/2004
6494434	Butterfly valve A butterfly valve comprises a valve housing with a valve opening and a valve seat, this valve housing enclosing a vacuum area of the valve; a valve plate which is mounted at a valve rod guided through the valve housing and which is pressed against the val...	12/17/2002
6487930	Cam actuated speed change mechanism A speed reducer utilizes a cam driver and a cam follower both having sinusoidal grooves. The numbers of peaks and valleys in the cam driver and the cam follower grooves are controlled to achieve a desired change in speed between an input shaft and an outp...	12/03/2002
6299096	Process and apparatus for renewing the bearing points of a traversing rod for forming crosswound bobbing Traversing rods in textile machines producing crosswound bobbins are often made of carbon fibers for the purpose of reducing the inertia force. These kinds of traversing rods are prone to wear at their bearing points. For this reason, the traversing rod w...	10/09/2001
6244228	Rotary-to-linear motion converter and use thereof A rotary-to-linear converter for use with a valve actuation device having a linear reciprocating cam shaft having longitudinally extending cam grooves that are engaged by captive cam followers which oscillate up and down in response to sideways reciprocat...	06/12/2001
6231027	High torque rotating actuator A high torque rotating actuator is disclosed. The high torque rotating actuator has a variable helix angle that allows the actuator to generate greater torque near the end of its travel when it is needed to close a valve or operate a choke. The high torqu...	05/15/2001
6212781	Reciprocating saw A reciprocating saw including a housing, a spindle mounted for reciprocation relative to the housing and having a front end adapted to support a saw blade, the spindle being movable through a cutting stroke and a return stroke, a motor for moving the spin...	04/10/2001
6160331	Apparatus and method for reducing noise and vibration in an electric motor An apparatus and method are provided for reducing noise and vibration in an electric motor. In order to reduce the generation of vibrations and the resultant audible noise, vibration damping material is used to de-couple vibrations from the rotor and stat...	12/12/2000
6012346	Low vibration motion translation system A low vibration motion translation system for converting continuous rotary motion into reciprocating linear motion employs a counterweight or counterbalance mechanism moving in the opposing direction to the reciprocating linear driver or piston to reduce ...	01/11/2000
6007047	Rotary actuator for stem valves A device for actuating a valve including a body having a slot therein. A pin is positioned within the slot, and the pin is attachable to a valve stem of a valve, whereby when the valve stem is attached to the pin and the pin is moved within the slot, the ...	12/28/1999
5904065	Walking beam drive apparatus A fully enclosed cam-actuated drive device for providing both lift and translational movements, incorporating protection against damage in either horizontal or vertical overload situations, achieved by providing optional spring protection along the vertic...	05/18/1999
5709127	Mechanical oscillator A mechanical oscillator including a shaft having an endless groove in its periphery, a nut body carried by and slidable along the shaft at the location of the endless groove, and a roller pin carried by the nut body, having a nose portion extending into a...	01/20/1998
5709626	Method of transmitting motion and device for effecting the same Motion is transmitted by means of a kinematic chain, comprising four members--a driving, driven, intermediate and support members. The driving, driven and supporting members rotate about a common axis. The intermediate member, by virtue of its operative l...	01/20/1998
5651396	Variable pitch lead transmission mechanism for weft gripper strap drive A variable pitch lead transmission mechanism includes a slider, a screw rod having a screw thread and two opposite screw thread surfaces and mounted on the slider, a driver contacting with one of the screw thread surfaces and adapted to be translated by a...	07/29/1997
5644950	Heavy-duty mechanical oscillator A heavy-duty mechanical/oscillator utilizes a shaft having an endless cam groove in its periphery, and a nut body carried by and slidable along the peripheral portion of the shaft. A roller pin on the nut body, extends into and engages a wall of the endle...	07/08/1997
5619870	Washing machine having punch-washing function The invention relates to a pulsator with an improved structure and more particularly to a pulsator having punching function used in the washing machine. The pulsator of the present invention is composed of such improved structure that a rotating member ha...	04/15/1997
5592852	Mechanical oscillator A mechanical oscillator including a shaft having an endless groove in its periphery, a nut body carried by and slidable along the shaft at the location of the endless groove, and a roller pin carried by the nut body, having a nose portion extending into a...	01/14/1997

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Class 74/57 - Grooved