Screw And Nut Devices Patents (Class 74/127)
  • Patent number: 10654152
    Abstract: A press type automatic screwdriver includes a press member, a drive link, a screwdriver bit, and a screw thread pair including a screw rack and a gear engaged with the screw rack. The press member and the screwdriver bit are secured to opposite ends of the drive link, the press member and the drive link are connected by the screw thread pair, and the screw rack is resisted by the press member. The gear is secured on an end of the drive link. When the press member is pressed, the press member pushes the screw rack, the screw rack drives the gear to rotate, the gear drives the drive link to rotate, and the drive link drives the screwdriver bit to rotate.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: May 19, 2020
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventor: Biao Xiong
  • Patent number: 10470793
    Abstract: Medical devices for rotating an elongate medical instrument can be used to remove, break up, clear, and/or eliminate obstructions within a lumen. Some medical devices for rotating an elongate medical instrument may include a coupling member for coupling the medical device to a secondary medical device. Some medical devices may include a flared distal region and some medical devices may include an elongate housing that is disposed around a portion of the distal region.
    Type: Grant
    Filed: September 27, 2016
    Date of Patent: November 12, 2019
    Assignee: Merit Medical Systems, Inc.
    Inventors: Gregory R. McArthur, Ken Sykes
  • Patent number: 10154747
    Abstract: A device for extracting zest from a fruit includes a body, a carrier coupled to the body, and a blade coupled to the body. The carrier moves the fruit relative to the blade and holds the fruit as the blade separates a portion of the flavedo from the pith of the fruit's peel to extract zest from the fruit. The device also includes an arm that urges the blade against the fruit's peel to generate contact pressure as the carrier moves the fruit relative to the blade, and that allows the blade to move toward and away from the carrier to accommodate the contour of the fruit's peel, which is often curved. The blade includes a plurality of teeth, each configured to cut a portion of the fruit's flavedo from the fruit's pith without separating the pith from the berry.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: December 18, 2018
    Assignee: Lifetime Brands, Inc.
    Inventors: Jason Dwayne Smith, Jasper E. Wheeler, William Edwin Drinkwater
  • Patent number: 9815181
    Abstract: A manual screwdriver includes a handle defining a cavity and a slot, a screwdriver head at one end of the handle, a rotation connector rotatably received in the cavity, a spiral rod defining a spiral groove and being rotatably received in the cavity, an operating arm slidably received in the spiral groove with two ends of the operating arm extending from the cavity through the slot, and a first elastic element biased on the operating arm. The screwdriver head is connected to the handle via the rotation connector. The spiral rod can be driven by the operating arm to engage or disengage the rotation connector. When the spiral rod and the rotation connector are combined into an engaged state, the operating arm can slide in the spiral groove toward the screwdriver head to drive the spiral rod and the rotation connector to rotate relative to the handle.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: November 14, 2017
    Assignee: MiiCs & Partners (Shenzhen) Co., Ltd.
    Inventor: Guang Yang
  • Patent number: 9732573
    Abstract: The disclosure relates to a downhole activation assembly for activating a downhole component of a downhole tool positionable in a wellbore penetrating a subterranean formation. The activation assembly includes a housing operatively connectable to the downhole tool, a piston slidably positionable in the housing with a chamber defined therebetween, and a valve. The piston has a flow channel therethrough. The valve is positionable about the flow channel of the piston, the valve comprising a fixed plate and a rotatable plate. The rotatable plate is movable about the fixed plate to define a variable bore to selectively restrict flow through the flow channel and to vary pressure about the piston whereby the piston is selectively moved to shift the downhole component between activation positions.
    Type: Grant
    Filed: January 2, 2015
    Date of Patent: August 15, 2017
    Assignee: National Oilwell DHT, L.P.
    Inventor: Mark Adam
  • Patent number: 9669523
    Abstract: A screwdriver includes a screw rod including a first end and a second end opposite to the first end. The screwdriver defines a screw slot on an external portion adjacent to the second end. The screwdriver further includes a screwdriver bit fixed to the first end of the screw rod, a resisting portion fixed to the second end of the screw rod, a handle placed over a portion of the screw rod adjacent to the second end. A movable element fixed to an inside wall of the handle and tightly closed to an inside surface of the screw slot, and an elastic element placed over the screw rod between the first end and the handle.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: June 6, 2017
    Assignees: Fu Tai Hua Industry (Shenzhen) Co., Ltd., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Li-Chin Lu, Jian-Hua Xiang, Xue Mou
  • Patent number: 9475179
    Abstract: A hand tool includes a handle, a tubular member, a driving rod and a return unit. The handle has a passage, a pressing recess, a releasing recess, an engaging recess and a first hole. The tubular member extends through the passage. The driving rod is inserted through a through hole of the tubular member. A bead is located in a bead hole of the tubular member and the first hole. The return unit is used to return the driving rod. The handle is located at a press position or a release position relative to the tubular member.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: October 25, 2016
    Inventor: Chih-Ming Lee
  • Patent number: 9239101
    Abstract: An apparatus and method for imparting an angularly rotational movement. The apparatus includes a cylinder having an internal portion, a rod operatively positioned within the internal portion of the cylinder, a first bearing operatively positioned about rod; a second unidirectional bearing operatively positioned about the rod and a motion program for selectively inputting incremental radial motion to the rod. The apparatus may also include a force generator for linearly moving the rod in a linear axial motion along an axis of the cylinder.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: January 19, 2016
    Assignee: Zedi Canada Inc.
    Inventors: Junfeng Duan, Tokunosuke Ito
  • Patent number: 8251119
    Abstract: A reversible control rod mechanism adapted for selectively and repeatedly rotating a shaft bidirectionally and thereby moving an attached load bidirectionally.
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: August 28, 2012
    Inventors: Andrew J. Toti, Russell L. Hinckley, legal representative
  • Patent number: 8220348
    Abstract: An under travel actuator, particularly intended for an automobile clutch, including an engine (12) for the translation movement of a mobile gear (14) acting on a push stem (16) for the opening and closing of the clutch, the mobile gear including screw-nut means (22, 24) cooperating with two combined means of unidirectional driving in order to regulate the length of the push stem (16) according to the wear of the clutch surfaces subject to friction.
    Type: Grant
    Filed: May 22, 2007
    Date of Patent: July 17, 2012
    Assignee: Valeo Embrayages
    Inventor: Hervé Maurel
  • Patent number: 8205658
    Abstract: An operating device for rotating a winding roller of a window blind, includes an upright rotating shaft rotatable to cause rotation of the winding roller and having thread segments, a sleeve shell surrounding the rotating shaft, upper and lower coupling members anchored on the sleeve shell and each having grip ends and cammed surfaces confronting the thread segments and the sleeve shell, and an actuating member having a camming surfaces disposed to be moved upward or downward to make an upper or lower friction engagements between the upper coupling member and rotating shaft, and between the lower coupling member and the rotating shaft for rotating the rotating shaft.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: June 26, 2012
    Inventor: Shih-Ming Lin
  • Patent number: 7946198
    Abstract: In accordance with one aspect of the present invention, a combination ratcheting and helical driver is disclosed. In the unlocked position the hand tool coverts downward linear force into rotary motion. In the locked position the hand tool operates as a ratcheting driver. The locking device locks the helical drive shaft of the hand tool in a retracted position such that the helical drive shaft is substantially positioned within the handle body. A locking main body is adjacent to a chuck assembly. The locking main body selectively combines with a shoulder abutment adjacent to the handle assembly to lock the helical drive shaft in the retracted position.
    Type: Grant
    Filed: June 15, 2009
    Date of Patent: May 24, 2011
    Assignee: Meridian International Co., Ltd.
    Inventors: Yao Kun Gui, Hua An Xu
  • Patent number: 7650806
    Abstract: A ring-like lubricant supply device 6 is fitted into a recess 4 of a nut member 2. The lubricant supply device 6 contains a lubricant and is formed in an outer peripheral surface with notches 7. Tubular members 8 each having an outer diameter larger than the diameter of the notch 7 are inserted into the notches, pushing and widening the notches 7 in a circumferential direction. One end of the tubular member 8 is fitted into a recess 9b of a retaining ring 9 and the retaining ring 9 is fixed to a nut member 2.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: January 26, 2010
    Assignee: NSK Ltd.
    Inventors: Toru Tsukada, Soichiro Kato
  • Publication number: 20090126521
    Abstract: A nut and lead screw assembly that includes a nut are disclosed. The nut includes at least one flexible finger for adjusting the engagement of a threaded portion of the nut with corresponding threads of a lead screw. The threaded portion is preferably formed of a different material than the flexible finger. The material of the threaded portion is preferably of a lower coefficient of friction than the flexible finger. The nut also includes an adjustment mechanism that adjust the radial position of the flexible finger and also the threaded portion. A preferred adjustment mechanism includes a spring finger that provides a radially extending biasing load to a free end of the flexible finger to adjust the position of the flexible finger. The adjustment mechanism more preferably includes a an adjustment member that adjusts the radial load provided by the spring finger.
    Type: Application
    Filed: November 21, 2007
    Publication date: May 21, 2009
    Applicant: Pacific Bearing Company
    Inventor: Jonathan R. Schroeder
  • Publication number: 20070266809
    Abstract: A lift actuator comprises a sun screw having a longitudinal axis and being restrained from rotation about the longitudinal axis of the sun screw, at least one planetary screw having a longitudinal axis and being in thread engagement with the sun screw, and a drive nut having a longitudinal axis coincident with the longitudinal axis of the sun screw and being in thread engagement with the planetary screw. The drive nut is mounted for rotation about the longitudinal axis of the drive nut but is restrained from translation along the longitudinal axis of the drive nut. When the drive nut is rotated by a rotational energy source, the drive nut drives the planetary screw to rotate and thereby translate axially relative to the drive nut, and the rotating planetary screw in turn causes the sun screw to translate axially relative to the rotating planetary screw.
    Type: Application
    Filed: May 18, 2006
    Publication date: November 22, 2007
    Inventor: Detlev Ziesel
  • Publication number: 20020069715
    Abstract: The present invention describes tools for fixing wire nuts to wires. The tools provide translation of linear force to rotational force thereby minimizing the turning action of a user of the tool. The tools for fixing the wire nuts may be color coded to allow quick selection of the appropriate tool for the appropriate wire nut. The tools will accommodate a variety of sizes all wire nuts and also a variety of designs of wire nuts. In one aspect of the invention, a single tool permits the user to switch from one sized wire nut to another without holstering during the tool.
    Type: Application
    Filed: December 12, 2000
    Publication date: June 13, 2002
    Inventor: Samuel A. Genco
  • Patent number: 6322336
    Abstract: In a lubricating device for a plurality of lubricating stations, in particular for supplying lubricant to knitting machines, a pump device is provided that serves at the same time as a distributor device. To that end, the pump device has a piston which is provided with a control groove. The corresponding pump cylinder has an inlet and a plurality of outlets distributed over the cylinder wall. Depending on which of the outlets the control groove of the piston is made to coincide with, a corresponding lubricating station is selected. The pump device is thus a distributor device as well.
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: November 27, 2001
    Assignee: Memminger-Iro GmbH
    Inventor: Rolf Huss
  • Patent number: 6308586
    Abstract: The invention relates to a gear transmission with a steplessly adjustable translation ratio for converting of rotary speeds and of torques of shafts. The uniform rotary motion of a drive shaft is transferred to a driven shaft with the aid of time staggered operating gear transmission units. The rotary motion is transformed by a cam transmission initially into a uniform translational motion and in the following this uniform translational motion is transformed into another, also uniform translational motion, with a speed depending on the translation ratio setting with a translation device. Finally this translational motion is transferred again into a uniform rotary motion by a further planar cam transmission and transferred to the driven shaft.
    Type: Grant
    Filed: April 3, 2000
    Date of Patent: October 30, 2001
    Inventor: Matthias Berger
  • Patent number: 6223612
    Abstract: Motion of an apparatus having reciprocal linear motion of an input member is converted into alternating rotary motion of a drive member such as a drive shaft or a drive gear. Additionally, a system is taught which uses linear motion, oscillating motion and rotational motion or any two or three with conversions and is adapted for using kinetic and electrical energy sources together and interchangeably. The system may be adapted for vehicular use. In one embodiment a two-cycle internal combustion engine is used in combination with the apparatus.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: May 1, 2001
    Inventor: Heinz Massinger
  • Patent number: 6182535
    Abstract: A semi-automatic fuse and cap insertion tool includes a socket mounted on a rotatable shaft, which shaft is mounted in a gun-like holder structure. A resilient means between the shaft and the holder keeps the shaft in a first position. With a fuse and cap in said socket and the gun shaft aimed for linear movement toward the fuse block, a linear pressure force in the direction of the fuse and cap and release of a trigger latch means causes the shaft to move into a gun-like barrel recess in the holder to a second position. During such movement, a cam follower fixed in the gun barrel interior rides in a helical grove in the shaft to cause the shaft fuse and cap in this socket to rotate relative to the gun-like structure and lock the fuse in the block. In a first position, the trigger initially blocks movement of the shaft and the shaft in the first position to thereby allow a certain amount of pressure to be applied to move the fuse and cap into place in the block and against a spring in the fuse cap.
    Type: Grant
    Filed: November 25, 1998
    Date of Patent: February 6, 2001
    Assignee: Lucent Technologies Inc.
    Inventor: Paul Laverl Phillips
  • Patent number: 5787953
    Abstract: Apparatus for cordless operation of blinds and shades. A pair of actuators are in spiral engagement with a spiral wand coupled to a rail mechanism from which the blinds or shades depend. Each actuator is biased into driving engagement with the wand, one of the actuators rotating the wand in one direction when raised or lowered and the other actuator rotating the wand in the opposite direction when raised or lowered.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: August 4, 1998
    Inventor: Jeff A. Jacobson
  • Patent number: 5765405
    Abstract: A clothes washing machine includes a washing basket and an oscillating agitator disposed at a bottom of the washing basket. The agitator includes a plate having radial blades, and an upward guide fixed at a center of the plate. A reciprocable member is mounted on the guide for upward and downward movement relative thereto for preventing the clothes from becoming entwined. The guide includes a first screw thread which engages a second screw thread on the reciprocable member so that upward and downward forces are alternatively applied to the reciprocable member in response to relative rotation between the first and second screw threads, causing the reciprocable member to reciprocate up and down. The upward force terminates in response to a lower end of the second screw thread reaching an upper end of the first screw thread. The downward force terminates in response to an upper end of the second screw thread reaching a lower end of the first screw thread.
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: June 16, 1998
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Byung Don Jung, Hee Bok Sun
  • Patent number: 5588221
    Abstract: An improved drive shaft assembly (11) for a paint brush and roller cover cleaning machine (10) providing a blank clutch disk (40) having an opening (41) which does not substantially increase in size with use of the paint brush or roller cover cleaning machine. Because the opening does not wear with use, a flange (42) mounted to the lower marginal end portion of a drive rod (16) is less likely to be pulled past the blank clutch disk.
    Type: Grant
    Filed: September 28, 1995
    Date of Patent: December 31, 1996
    Assignee: Shur-Line, Inc.
    Inventors: Larry Hoeltke, Roger Fischer
  • Patent number: 5577412
    Abstract: The apparatus has the form of a non-self-braking helical mechanism located inside casing (24) and having a driving member (2) and a driven member (1) connected to the driving member (2) through rolling bodies (3). The driving member (2) is connected to unit (5) for applying an axial force to ensure free axial displacement, free rotation, locking, and engagement with two surfaces, of which one is a locking surface, and the other is a sliding surface, with corresponding identical surfaces of the unit (5). The unit (5) is connected to a mechanism for generating an axial force in the form of a helical transmission (9, 11) ensuring generation of a torque to change the turning angle of the driven member (1), and has a mechanism (17) for varying the axial force. Driving member (9) of helical transmission (9, 11) is positioned coaxially with the driven member (1) and rigidly connected to unit (5) and to mechanism (17) for engagement with the driving and driven members (2, 1).
    Type: Grant
    Filed: August 26, 1994
    Date of Patent: November 26, 1996
    Inventor: Gennady V. Vasiliev
  • Patent number: 5560402
    Abstract: A reversible wire twisting plier tool is provided, which includes a pair of plier arms each having a jaw portion and a handle portion and which are pivotally interconnected and movable between an open position and a closed position. A plier rotating mechanism is mounted on one of the handles. The rotating mechanism includes a tubular member and a double spiral shank having a left hand groove and a right hand groove, axially slidably mounted within the tubular member. First and second gears are disposed within the tubular member, one gear being slidably engaged in one of said grooves and the other being slidably engaged in the other groove. A gear actuator is provided which is movable between a first actuated position wherein the actuator engages the first gear and a second actuated position wherein the actuator engages the second gear to selectively impart a clockwise or counterclockwise motion to the shaft depending upon which gear means is engaged.
    Type: Grant
    Filed: May 17, 1994
    Date of Patent: October 1, 1996
    Assignee: Milbar Corporation
    Inventor: Darryle E. Bates
  • Patent number: 5024565
    Abstract: A hand tool can remove burrs from an aperture in a workpiece. The tool has a hollow handle and a shaft rotatably mounted in the handle to reciprocate axially therein. The tool has a thruster for urging the shaft to extend axially. A rider is mounted in the handle for engaging and rotating the shaft as it extends axially from the handle. This rider can allow axial retraction of the shaft into the handle without rotation. A deburring bit (e.g. a countersink bit) is mounted at an outer end of the shaft. Thus the bit turns when the shaft extends as the handle withdraws from the workpiece.
    Type: Grant
    Filed: August 20, 1990
    Date of Patent: June 18, 1991
    Inventor: Henry Pinand
  • Patent number: 4942936
    Abstract: A bicycle or motocycle that can be driven either by compressed air or pressurized hydraulics in which either an electric motor operated from a battery source drives a pump or the rider manually provides pedal power for driving the pump in compressing either air or pressurizing hydraulic fluid that is fed through pipelines to a cylinder motor having a piston and rod mechanically connected to a series of clutches that are connected to a series of rectangular or square gears operatively arranged for rotating a series of worm screw gears to the reciprocation of the piston rod whereby the screw gears are connected to an output shaft having a gear operably connected to a second gear that is fixed to the drive axle of the two wheel vehicle for its rotation thereof.
    Type: Grant
    Filed: February 12, 1988
    Date of Patent: July 24, 1990
    Inventor: Elmer W. Gardner, Jr.
  • Patent number: 4912995
    Abstract: A rotary-to-linear mechanical motion converter has a housing attachable to a drive engine, an input shaft reciprocable to the housing and coupled directly or through a gear arrangement to a reciprocating output shaft of the drive engine, a first drive train coupling the input shaft for turning a rotor in a given sense of rotation for a first direction of movement of the input shaft, and a second drive train coupling the input shaft for turning the rotor in the same given sense of rotation for an opposite direction of movement of the input shaft, the first and second drive trains alternately driving the rotor, as in an electrical generator, for continuous rotation in a given sense relative to the housing. In an alternate converter, both drive trains drive a rotor for only one direction of movement of the input shaft.
    Type: Grant
    Filed: October 24, 1988
    Date of Patent: April 3, 1990
    Inventor: John L. Otters
  • Patent number: 4865152
    Abstract: A power drive system highly adaptable for non stationary vehicle drive in which a battery powered electric motor is mechanically coupled to a hydraulic pump for pressurizing hydraulic fluid that is fed to a cylinder motor that is operably connected to one end of a non rotatable worm screw gear that is reciprocably and rectlinearly driven inside and output shaft for engagement to a series of clutches and gears positioned therein for providing rotation to the output shaft that is operably connected at the other end to the drive shaft, universal or differential of a standard vehicle for providing rotation to the wheels of said vehicle.
    Type: Grant
    Filed: June 30, 1986
    Date of Patent: September 12, 1989
    Inventor: Elmer W. Gardner, Jr.
  • Patent number: 4829841
    Abstract: This invention relates to a rotary driving device, wherein a rotation and an axial movement of an input shaft are imparted to intermediate members as a rotary movement through a torsional connection, whereby the rotary movement of the intermediate members is imparted to an output shaft through a clutch mechanism. This rotary driving device can be used as a driving device in a bicycle for example. Without utilizing the conventional device wherein a chain, a sprocket and the like are used, a rocking movement of a pair of rocking arms connected to the input shaft makes it possible to advance the bicycle.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: May 16, 1989
    Assignee: Nueberg Company Limited
    Inventor: Kenji Ogawa
  • Patent number: 4753124
    Abstract: Device comprising a screw (6) and a nut (8) subjected to an axial force which alternates in opposite directions, the thread (7) of the screw having a given helix angle and a given pressure angle which are so chosen that, in a first direction, termed reversible direction, the screw (6) is capable, under the axial thrust exerted in this direction by a spring (20), of effecting a translation and a rotation in the nut (8), and that, in a second direction, termed irreversible direction, opposed to the first direction, the screw undergoing an axial thrust in this second direction by a push-member (9), can effect neither a translation nor a rotation in the nut. This assembly may be applied to the automatic taking up of play of systems subjected to alternating longitudinal forces, such as shafts of electric motors or cable controls.
    Type: Grant
    Filed: April 27, 1987
    Date of Patent: June 28, 1988
    Assignee: Rockwell-CIM
    Inventor: Claude Chevance
  • Patent number: 4577522
    Abstract: A rotary hand tool driven by reciprocal thrusts of a handle in which reciprocal motion is caused by extensions from a rotating shaft assembly engaged with elongated, axially spaced helical slots in a housing coaxial with the shaft and fixed to the handle.
    Type: Grant
    Filed: June 19, 1984
    Date of Patent: March 25, 1986
    Inventor: James D. Cox, Jr.
  • Patent number: 4574881
    Abstract: An improved split nut for use in blowout preventers temporarily installed on oil or gas wells is formed by fastening a base and a cap together. Fastening bolts are inserted through holes in the cap and in packing inserts in the base, and threaded into fastening nuts positioned within recesses in the base. Plugs seal the recesses from corrosive materials and hold the fastening nuts in position for convenient assembly. The packing inserts are compressed when the fastening nuts and bolts are tightened to seal the threads of the fastening bolts and nuts from corrosive materials that may seep through the cap holes.
    Type: Grant
    Filed: February 12, 1985
    Date of Patent: March 11, 1986
    Inventor: James W. Bednarz
  • Patent number: 4573427
    Abstract: A device for scaring birds thereby aiding in the prevention of crop destruction due to the birds feeding thereon comprises in combination an actuator, such as an air gun which ejects at increased velocity a gaseous stream in a predetermined path, a frame including a target disposed in an impinging relationship to the gaseous stream path so as to be moved between rest and operative positions responsive to the gaseous stream, and a visual scaring member operatively connected to the target for scaring birds, the visual member being reciprocally operable between inactive and active positions in response to the target being moved between the rest and operable position, respectively. According to another embodiment of the present invention, controls are provided for disabling the device during night hours and/or during periods of increased wind velocities which could potentially damage the device.
    Type: Grant
    Filed: May 31, 1983
    Date of Patent: March 4, 1986
    Inventor: Peter Konzak
  • Patent number: 4494025
    Abstract: The linear feed device is suitable for extremely slow feed rates or extremely small feed steps. It works with two motors (M.sub.1, M.sub.2) which drive a nut (16) and a screw spindle (2) via an intermediate drive (12-15; 22-25). The intermediate drives have slightly different transmission ratios, e.g., 1:0.340909 and 1:0.3414634.With a thread pitch of 2 mm of the spindle, this results, with the same direction of rotation of the motors, in about 0.0013 mm advance per revolution of the motor shafts. With the help of step motors, therefore, extremely small advance steps can be achieved.
    Type: Grant
    Filed: April 23, 1984
    Date of Patent: January 15, 1985
    Inventor: Hans Fickler
  • Patent number: 4462345
    Abstract: An energy transfer device includes a rotatable driveshaft supported within a cylinder and including first and second pistons slidably mounted within the cylinder. The driveshaft has first and second generally helical tracks formed thereupon and extending in opposite rotational directions about the driveshaft. First and second ratcheted cam clutches are coupled to the first and second pistons, respectively, and engage the first and second tracks within the driveshaft for converting reciprocating sliding motion of the first and second pistons into rotational motion of the driveshaft. The first and second pistons may be reciprocated by a valving mechanism which alternately admits pressurized fluid to one end portion of the cylinder while exhausting fluid from the opposite end portion thereof. The first and second pistons may also be reciprocated by magnetizing the first and second pistons and surrounding the cylinder by an alternating electromagnetic field.
    Type: Grant
    Filed: July 13, 1981
    Date of Patent: July 31, 1984
    Assignee: Pulsar Corporation
    Inventor: Edward E. Routery
  • Patent number: 4436294
    Abstract: A one hand clamping device which is flexible and reversible in operation, comprises a hand held main unit having mounted thereon a C-shaped clamping structure which is also changeable in relative position with the main unit, an actuating grip together with quandrant segment gear actuated thereby, rack bar driven from the gear action driven from the quandrant segment gear and integral with a slidable receptacle for supporting one-way drive structure for an actuating drive gear for in turn an elongated clamping screw which is mounted so as to be movable in and out of the hand held unit. The elongated clamping screw is provided with a slot therein for reception of a guide plate also mounted in the main unit to prevent rotation of the screw but to permit longitudinal movement thereof in and out of the main unit.
    Type: Grant
    Filed: February 22, 1982
    Date of Patent: March 13, 1984
    Inventor: Robert L. Irelan
  • Patent number: 4263825
    Abstract: The adjustment screw that regulates the stroke length of the piston that drives a diaphragm pump is rotated by means of a clutch and "diamond-back" screw structure. By selectively engaging either of two oppositely oriented one-way clutches, one of two respective associated nuts that ordinarily rotate freely on the "diamond-back" screw is blocked from rotation when the screw moves longitudinally in one direction. Thus locked, the nut compels the "diamond-back" screw to rotate, thereby turning the adjustment screw with which it is connected in order to produce the desired increase in piston stroke length.
    Type: Grant
    Filed: July 20, 1979
    Date of Patent: April 28, 1981
    Assignee: Interpace Corporation
    Inventor: Vladimir Guslits
  • Patent number: 4238002
    Abstract: Apparatus for suspending a mass and using the weight of said mass to slowly rotate it. The apparatus includes a housing and a shaft within the housing coupled to said housing by means of a spiral cam so that longitudinal movement of the shaft causes the shaft to rotate. The shaft is also coupled to the housing by damping means which limits the rotational speed of the shaft to some preselected rate.
    Type: Grant
    Filed: July 31, 1978
    Date of Patent: December 9, 1980
    Inventor: Don L. Hexamer
  • Patent number: RE40898
    Abstract: In a lubricating device for a plurality of lubricating stations, in particular for supplying lubricant to knitting machines, a pump device is provided that serves at the same time as a distributor device. To that end, the pump device has a piston which is provided with a control groove. The corresponding pump cylinder has an inlet and a plurality of outlets distributed over the cylinder wall. Depending on which of the outlets the control groove of the piston is made to coincide with, a corresponding lubricating station is selected. The pump device is thus a distributor device as well.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: September 1, 2009
    Assignee: Memminger-Iro GmbH
    Inventor: Rolf Huss