Cams Patents (Class 74/567)
  • Patent number: 6694850
    Abstract: Cutter for cross cutting of reeled webs comprising a rotary cutting assembly including a blade and a counter blade rotated in synchronism with an advancement assembly of the web. The rotation axes of the blade and of the counter blade are displaceable relative to each other, perpendicularly to the web, and a gear actuator is provided to operate mutual approaching thereof when the blade and the counter blade are placed in a mutually facing angular position for cutting the web. The blade and the counter blade are rotated only at the time of cutting.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: February 24, 2004
    Assignee: Temco SRL
    Inventor: Giacomo Tosatto
  • Patent number: 6694843
    Abstract: A flexible bushing for a cam follower, comprising a substantially rigid inner sleeve including an inner cam follower engaging surface, a length of the inner sleeve being greater than a thickness of a ram into which the flexible bushing is inserted, a substantially rigid outer sleeve including an outer ram engaging surface, a length of the outer sleeve being substantially equal to the thickness of the ram, the inner and outer sleeves being substantially concentric, and a shock absorbing flexible material disposed between the inner and outer sleeves.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: February 24, 2004
    Assignee: Intech Corporation
    Inventors: Georg Bartosch, Todor S. Mihov
  • Patent number: 6684723
    Abstract: An apparatus for producing a lifting and lowering movement for lifting and lowering transverse transporting tongs of a forming machine includes a rotatable control shaft on which a control cam, a counter cam and a spring element cam are fitted. A pivotably mounted double lever has a control roller arm, a counter roller arm and a drive output arm. A control roller, rolling on the control cam, is rotatably arranged on the control roller arm and a counter roller, rolling on the counter cam, is rotatably arranged on the counter roller arm. The control cam and the counter cam act on the double lever in opposite directions of rotation. On the spring element cam there rolls a spring element roller arranged on a spring element lever. Arranged on the spring element lever is a spring element, which acts on the double lever in the same direction of rotation as the counter roller.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: February 3, 2004
    Assignee: Hatebur Umformmaschinen AG
    Inventor: Stefan Stöckle
  • Publication number: 20040000213
    Abstract: A camshaft formed by integrating at least a bearing cylindrical member and a cam piece with a shaft of steel pipe by wax binding. The cam piece is cast iron where a chilled layer is formed. Wax material used in the wax bonding is silver solder. A predetermined portion of the cam piece is nickel-plated. Abrasion of a slide surface of the valve lifter as a counterpart in sliding of the cam piece can be prevented. Thus, the manufacturing cost of the valve lifter can be suppressed by employing a general material as the valve lifter. As the cam piece is a cast product, the productivity of the cam piece can be improved. The manufacturing cost of the valve lifter can be suppressed, and at the same time, the weight of the camshaft can be reduced and the manufacturing cost of the camshaft can be reduced.
    Type: Application
    Filed: March 31, 2003
    Publication date: January 1, 2004
    Inventors: Toshikazu Hamamoto, Yoshiki Suzuki, Chutaro Kobayashi
  • Patent number: 6669614
    Abstract: A carton closure system including a cam having a rear face and a camming surface opposite the rear face, the cam being mounted for linear reciprocation between a position wherein there is applied pressure against partially infolded portions of the end side walls of a carton blank to effect a sealing pressure against such infolded portions and a position wherein no material pressure is applied to the partially infolded end side walls of the carton blank, the movement between such pressure and non-pressure applied positions being facilitated by means of a multi-faceted geometry of the camming face of the cam.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: December 30, 2003
    Assignee: International Paper
    Inventors: George A. Morden, Cletus E. Kreher
  • Patent number: 6658957
    Abstract: In a link mechanism, a first link is disposed to be movable by a driving force from a driving source, and a second link is operatively linked with the first link to move a driven unit. One of the first and second links includes a cam groove having a bent portion which is bent by a radius of curvature smaller than a predetermined value, and the other one of the first and second links includes a pin slidable within the cam groove. In the link mechanism, a sliding speed of the pin sliding in the cam groove is reduced when the pin enters into the bent portion in the cam groove, as compared with the sliding speed before the pin enters into the bent portion.
    Type: Grant
    Filed: January 15, 2002
    Date of Patent: December 9, 2003
    Assignee: Denso Corporation
    Inventor: Masato Nishishita
  • Patent number: 6652437
    Abstract: The present invention is related to a paper conducting cylinder (8) of a folder assembly (1). A cylinder surface (18) has a plurality of counterparts (23) for cooperation with cutting elements of a cutting cylinder (3). Product seizing element (24) being assigned to said paper conducting cylinder circumference (18) are located adjacent to said counterpart (23) and said cylinders (8) surface (18). Said product seizing element (24) perform an extending movement about a first pivot point (25) and a seizing movement about a further pivot point (26).
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: November 25, 2003
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Eugene John Bergeron, David Elliot Whitten, Christopher John Slusarz
  • Patent number: 6631657
    Abstract: For a peripheral cam for a valve-controlled internal-combustion engine, having a cam contour which generates at least one positive acceleration course in the valve opening area, the gas dynamics, are advantageously influenced in that the peripheral cam has an opening flank with a contour causing a delayed opening acceleration course. The opening acceleration course is generated with acceleration curves with relatively high acceleration peak values of different amounts spaced by way of an intermediate curve of relatively low positive acceleration values. A first acceleration curve has a peak value of approximately 40 to 60% of a peak value of an adjacent acceleration curve set at 100%.
    Type: Grant
    Filed: October 26, 1998
    Date of Patent: October 14, 2003
    Assignee: Bayerische Motoren Werke Aktiengesellschaft
    Inventors: Claus-Otto Griebel, Juergen Thams
  • Patent number: 6631701
    Abstract: A hollow camshaft (19) lubrication system for aircraft engines that supplies lubricant (14) to cam lobe surfaces (25) from the interior surface (22) of the hollow camshaft (19) even during periods when aircraft operation moves the rotation axis of the hollow camshaft (19) from horizontal.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: October 14, 2003
    Inventors: Mark E. Seader, Thomas E. Ehresman
  • Patent number: 6622379
    Abstract: An electronic parts-mounting apparatus including a rotating vertical shaft and at least one mounting head arranged around the vertical shaft has a lift cam mechanism that operates to lift and lower an associated one of the at least one mounting head as each mounting head is rotated with the vertical shaft. The lift cam mechanism includes a cylindrical cam having an annular protruding portion concentrically disposed with respect to the vertical shaft that provides upper and lower cam surfaces. Upper and lower rolling cam followers are arranged respectively on the upper and lower cam surfaces of the protruding portion to sandwich the protruding portion therebetween. One end of a support member has one of the upper and lower cam followers mounted thereon and the other end of the support member has the associated one of the at least one mounting head connected thereto.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: September 23, 2003
    Assignee: Hitachi High-Tech Instruments Co., Ltd.
    Inventor: Yoshinori Kano
  • Publication number: 20030167874
    Abstract: A cam apparatus includes: a cam driver; a cam slide adapted to move in contact with the cam driver and having a through hole; a cam-slide supporting device having a cam-slide supporting base which movably supports the cam slide, has a front wall portion disposed at a forward position in a moving direction of the cam slide, and has an opening in a backward position opposing the front wall portion in the moving direction of the cam slide; and a returning mechanism for returning the cam slide to an initial position thereof.
    Type: Application
    Filed: March 5, 2003
    Publication date: September 11, 2003
    Inventors: Takayuki Miyaji, Hideki Kiriaki
  • Patent number: 6601470
    Abstract: A cam mechanism through which torque applied to an input shaft is converted into the bi-directional rotation and reciprocating axial movement of an output shaft. Two cam elements are utilized, one consisting of a roller gear cam attached to the input shaft, and the other of a recessed channel type cam formed on one side of the roller gear cam. Two power transfer mechanisms are also utilized, one consisting of a turret installed adjacently to the roller gear cam as means of imparting a rotational movement to the output shaft, and the other consisting of a reciprocating swing arm of which one end is driven by the channel type cam. The turret is connected to the output shaft through a sliding spline that allows the output shaft to move axially within the turret, by means of a movable connection with the reciprocating swing arm, while being rotationally driven by the splined connection.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: August 5, 2003
    Assignee: Sankyo Manufacturing Co.
    Inventor: Heizaburo Kato
  • Patent number: 6591713
    Abstract: A modular camshaft assembly having an elongated shaft, at least one cam lobe assembly, at least one spacer assembly, and a cam adapter assembly is disclosed. Each cam lobe assembly is selectively secured to the elongated shaft. Each spacer assembly is secured to the elongated shaft, wherein the spacer assembly is selectively positioned adjacent the cam lobe assembly. The cam adapter assembly is secured to the elongated shaft and adapted to connect the modular camshaft assembly to a drive assembly.
    Type: Grant
    Filed: August 20, 2001
    Date of Patent: July 15, 2003
    Assignee: Jesel, Inc.
    Inventor: Daniel H. Jesel
  • Patent number: 6585446
    Abstract: An adjustment system for a plate-like member includes a cam member formed with an appropriate cam curve in contact with front or rear surface of, for example, a reflector installed in an optical scanner to reflect a scanning beam of an optical scanner so that a reflecting direction of this reflector may be adjustably varied by rotating the cam member and optical and scanning characteristics of the optical scanner may be ensured.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: July 1, 2003
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventor: Koji Kaneko
  • Patent number: 6564668
    Abstract: The driver mechanism of double spherical cam type for mechanical automatons has the characteristic of being small overall size deriving from the use of two different (6, 7) cams formed on the two ends of a rotary hollow cylinder (5), this cylinder housing internally, rigid with a fixed platform or structure (1) of the machine, a column element (10) for fixing support bearings (8, 9) for said rotary hollow cylinder and for fixing the pivot for two right angled levers (13, 14) having at least one of their ends (16-17, 18-19) acting as a cam follower and their other free (20, 21) end driving the final user slide (30, 33), one (35) of said driving actions, which are provided by pins (22, 36) at the two free ends of the two right angled levers (13, 14), being direct and the other being implemented via a suitable transmission lever (25).
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: May 20, 2003
    Assignee: Colombo Fillippetti S.p.A.
    Inventor: Flavio Bajo
  • Publication number: 20030084750
    Abstract: A flexible bushing for a cam follower, comprising a substantially rigid inner sleeve including an inner cam follower engaging surface, a length of the inner sleeve being greater than a thickness of a ram into which the flexible bushing is inserted, a substantially rigid outer sleeve including an outer ram engaging surface, a length of the outer sleeve being substantially equal to the thickness of the ram, the inner and outer sleeves being substantially concentric, and a shock absorbing flexible material disposed between the inner and outer sleeves.
    Type: Application
    Filed: November 5, 2001
    Publication date: May 8, 2003
    Inventors: Georg Bartosch, Todor S. Mihov
  • Patent number: 6557844
    Abstract: A device for transferring sheets in a sheet-processing machine includes a cylinder having at least one gripper device for the sheets, and a control device for opening and closing the gripper device, the control device having a first control cam for recto printing and a second control cam for recto/verso printing, at least one follower element for following the first and second control cams, each of the first and second control cams being formed with a through opening for accommodating a bearing element and, respectively, a cutout formed in the periphery of the first and second control cams and extending as far as the through opening for fitting the first and second control cams to and removing them from the bearing element radially. The first and second control cams, respectively, are of unipartite construction and, in peripheral direction, are aligned with one another so as to provide an at least approximately closed contour path for the at least one follower element.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: May 6, 2003
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Willi Becker, Daniel Conzelmann, Andreas Fricke
  • Patent number: 6551004
    Abstract: A mechanical linkage for attaching a first load-carrying member to a second load-carrying member includes an elongated race that defines an axis and at least one ball. The elongated race is formed with an aperture that is surrounded by two opposed faces and two opposed semi-circular surfaces. Importantly, each face is formed with a channel that extends in a direction that is substantially parallel to the direction of the axis of the race. The ball is formed with a cylindrical thru-hole that passes through the center of the ball to allow the ball to be attached to the first load-carrying member while disposed within the aperture of the race. The race holds the ball but allows for limited rotation of the ball and translational movement of the ball along the axis of the race. The race includes an extension for attachment to the second load-carrying member.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: April 22, 2003
    Inventor: Ron Hearidge
  • Patent number: 6536302
    Abstract: A manual adjustment mechanism for adjusting the relative position of a component in a vehicle including a control device for actuating the mechanism. The manual adjustment mechanism includes an input shaft coupled to the control device and an output shaft operatively coupled to the input shaft. A support bracket axially supports the input shaft and the output shaft. A drum shaped housing having a cylindrical inner surface is fixedly secured to the support bracket and rotatably received the input shaft. A coupler is mounted to the input shaft and rotatably disposed within the housing. The coupler includes a pair of spaced apart tube walls planar with and spaced from the inner surface of the housing and a pair of circumferentially opposite tabs projecting between the tube walls. A coiled spring is disposed between the housing and the coupler and compressed against the inner surface of the housing.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: March 25, 2003
    Assignee: Magna Seating Systems Inc.
    Inventor: Omar D. Tame
  • Patent number: 6532924
    Abstract: A variable valve actuating mechanism includes an output cam pivotally disposed upon an input shaft. A first link arm is pivotally coupled at a first end thereof to the output cam. A rocker arm is pivotally coupled at a first end thereof to a second end of the link arm. A frame member is pivotally disposed upon the input shaft. Lash adjusting means include an eccentric pin and a force applying means. The eccentric pin pivotally couples together a first end of the frame member and a second end of the rocker arm. The force applying means applies a force upon the eccentric pin causing the eccentric pin to pivot which, in turn, adjusts the position of the rocker arm relative to the input shaft and thereby removes lash from the mechanism.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: March 18, 2003
    Assignee: Delphi Technologies, Inc.
    Inventor: Ronald J. Pierik
  • Publication number: 20030033901
    Abstract: A cam lobe piece of a built-up type camshaft for an internal combustion engine. The built-up type camshaft includes a hollow shaft fixedly inserted in a shaft opening of the cam lobe piece upon diametrical expansion of the hollow shaft. The cam lobe piece comprises a base circle section having the shaft opening, and a cam lobe section formed integral with the base circle section.
    Type: Application
    Filed: July 2, 2002
    Publication date: February 20, 2003
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Yoshimi Sugaya, Makoto Iwakiri, Takao Mitsuno, Kou Takayama, Hirokazu Fukagawa, Takayuki Hirao, Kimio Nishimura, Kouji Itakura, Mitsushi Oyanagi, Yutaka Mabuchi, Akira Fujiki, Yukihiro Maekawa, Yoshio Okada
  • Patent number: 6513468
    Abstract: A valve timing control system for an internal combustion engine for preventing dispersion of a control amount and unexpected unlocking of a lock pin is provided. The valve timing control system is provided with actuators 15 and 16 connected to cam shafts 15C and 16C, hydraulic pressure supply units 19 and 20 for driving the actuators, and a controller 21A for controlling a hydraulic pressure for the actuators depending on operating states while changing a relative phase of the cam shafts relative to crank shafts. The actuator includes a locking mechanism for setting the relative phase to a lock-up position and unlocking mechanisms for unlocking the locking mechanism in response to a predetermined hydraulic pressure, and the controller restricts a control of valve timing within a predetermined range of said lock-up position in the locking mechanism.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: February 4, 2003
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Tatsuhiko Takahashi, Morio Fujiwara
  • Publication number: 20030019321
    Abstract: This invention concerns a device, which, when used in climbing, acts as an anchor in cracks with two parallel sides. The device consists of several opposing cams that rotate on the same shaft. The force generated when a climber falls is counteracted by the force of the friction between the cams and the rock. As opposed to other known spring-operated devices, the load generated by a fall acts directly on the cams (2, 3), and not on the shaft (1), through cables (6) that pull on the cams on the side of the shaft opposite the edge that is in contact with the wall, and which are supported on convex surfaces formed by the cams themselves.
    Type: Application
    Filed: June 28, 2002
    Publication date: January 30, 2003
    Inventors: Mikel Apezetxea, Inaki Xabier Zabala
  • Publication number: 20030019322
    Abstract: An adjustable ramp helix is disclosed for attachment to the clutch of a snowmobile or other vehicle. The adjustable ramp helix may include a base having a throat. Extending upwardly from the base opposite to the throat may be three equally sized ramp supports where each ramp support has an adjustable ramp. Each adjustable ramp is preferably pivotally attached to the top portion of a corresponding ramp support for positioning to the interior thereof. Each of the adjustable ramps includes an arcuate foot section which passes through an arcuate aperture in the base. A threaded outer dial collar may be rotatably engaged to the throat for positioning with respect to the collar. The collar engages the arcuate foot sections of the adjustable ramps to uniformly and simultaneously elevate the adjustable ramps above the ramp supports.
    Type: Application
    Filed: September 24, 2002
    Publication date: January 30, 2003
    Inventor: Kent Lee
  • Patent number: 6510762
    Abstract: A control cam or a gear wheel having a plurality of layers of flat material placed one on top of the other. Each of the layers of flat material is of a multi-part form with partition lines that extend in a direction of planes over the layers of material. At least some of the partition lines of neighboring layers of the flat material are offset in relation to one another. The partition line of a layer of flat material is arranged so that in both circumferential directions it lies approximately equally spaced in relation to a partition line of a neighboring layer of flat material.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: January 28, 2003
    Assignee: Volkswagen AG
    Inventors: Alfred Beier, Dietrich Distler
  • Patent number: 6502538
    Abstract: A cam with a bore that has a funnel-shaped core-insertion section. To ensure that the cam will rest more securely against the core and remain more precisely centered, the section (5) comprises at least two mutually aligned conical extents (6 & 7), each expanding outward at a different apical angle.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: January 7, 2003
    Assignee: Thyssen Krupp Automotive AG
    Inventor: Rudolf Leuthold
  • Patent number: 6487930
    Abstract: 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 output shaft. The use of the cam drive system allows a wide range of speed control in a relatively small package, and further ensures quiet operation.
    Type: Grant
    Filed: October 11, 2000
    Date of Patent: December 3, 2002
    Assignee: Meritor Light Vehicle Technology, LLC
    Inventors: Silvio Yamada, Tomaz Varela
  • Patent number: 6485216
    Abstract: A control device for folding movement of a stroller includes a safety button, a control button, two upper locking members and two lower locking members. The safety button can move left and right along an elongated opening of a housing member connected to the handle. The control button can move up and down through a lower hole of the housing, and has two pivotal bars having upper holes pivoted to a pivotal rod passing through upright elongated holes of lateral protrusions of the control button. When the safety button is pushed sideways to disengage the tops of the lateral protrusions, the control button can be pushed up for inner bottom curved surface to force the pivotal bars to pivot towards a respective edge of the control button. Steel ropes connected to the lower ends of the bars are pulled by the bars to lift upper locking members, which are provided to engage lower locking members pivoted to the frame of the stroller.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: November 26, 2002
    Inventor: Ying-Hsiung Cheng
  • Patent number: 6477996
    Abstract: A variable valve timing system is provided with a relative rotation controlling mechanism allowing relative rotation of the housing member and the rotor member by an unlock operation through the supply of operation fluid, and restricting the relative rotation of the housing member and the rotor member at an intermediate angle phase between a most retarded angle phase and a most advanced angle phase by a lock operation through the discharge of the operation fluid. A hydraulic pressure circuit controls the supply and discharge of the operation fluid to the relative rotation controlling mechanism and also controls the supply and discharge of the operation fluid to the advanced angle chamber and the retarded angle chamber. The hydraulic pressure circuit is adapted to discharge the operation fluid from the advanced angle chamber, the retarded angle chamber and the relative rotation controlling mechanism when the combustion engine is started.
    Type: Grant
    Filed: June 14, 2001
    Date of Patent: November 12, 2002
    Assignee: Aisin Seiki Kabushiki Kaisha
    Inventor: Kazumi Ogawa
  • Publication number: 20020157500
    Abstract: A pipe or a solid rod (1) is coated on the outer surface, or cams (3) and/or other parts are coated on their inner surface with a suitable coating (2), for example a joint-stable conversion coating, in order to produce a cost-advantageous mass product with commercially available materials and semifinished materials by a longitudinal pressing on of cams and other parts onto the pipe or solid rod.
    Type: Application
    Filed: January 3, 2000
    Publication date: October 31, 2002
    Inventors: Herbert Gropp, Dietmar Klose, Claus-Peter Durlich, Manfred Janssen
  • Patent number: 6443032
    Abstract: An assisting apparatus that uses power from a rotating member to assist the operation of a bicycle transmission includes a mounting member; a cam member coupled to the mounting member for rotation around a cam axis, wherein the cam member has a cam surface; a cam follower cooperating with the cam surface for moving in response to rotation of the cam member; a transmission actuating element coupling member for communicating movement of the cam follower to a transmission actuating element; a first coupling member coupled for rotation of the cam member, wherein the first coupling member moves between a first engaged position and a first disengaged position; an operating member for moving the first coupling member to the first engaged position; and a decoupling member that moves the first coupling member to the first disengaged position in response to a rotational position of the cam member.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: September 3, 2002
    Assignee: Shimano, Inc.
    Inventors: Kazuhiro Fujii, Yoshiaki Nanko
  • Patent number: 6442835
    Abstract: A camshaft used in an internal combustion engine which has reduced weight and added wear resistance at a lobe of the camshaft. The camshaft is provided to add increased wear resistance and reduced weight to the internal combustion engine for increased efficiency of the internal combustion engine. The camshaft includes wear resistant material at the surface of the lobe of the camshaft. The wear resistant material is distributed on the outer surface of the lobe and incorporated into the base material.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: September 3, 2002
    Assignee: Caterpillar Inc.
    Inventors: Thomas Majewski, Michael J. Pollard
  • Publication number: 20020117020
    Abstract: A camshaft that has a hollow inner chamber and a number of outlet ports. One end of the camshaft is sealed. The other end of the camshaft connects to an engine at a bearing oil gallery. Here, oil is forced into the hollow shaft. A number of holes are drilled around the cam lobes. Two holes are on one side of the shaft and a third is on the opposite side of the shaft. These holes communicate with the hollow interior of the camshaft. As oil is pumped into the shaft, it is forced out of the holes and around the camshaft and the cam lobes. Because each cam lob has these oiling holes, lubrication is provided to all lobes simultaneously. Because the cam lobes are what wears, delivering oil to all lobes simultaneously increases the lobe life significantly.
    Type: Application
    Filed: February 28, 2001
    Publication date: August 29, 2002
    Inventor: Stephen Novak
  • Patent number: 6438836
    Abstract: A process is provided for the production of a cam to be joined to a hollow shaft to form a camshaft. In order to make the cam suitable for stable long-term operation on the camshaft, the internal compressive stresses achieved in the cam track before the joining of the cam to the camshaft being so high that the tensile stresses resulting from joining are permanently overcompensated, it is provided that the material selected for the cam is a steel in which the carbon can be dissolved easily as cementite in the pearlite and martensite or is in the form of a fine composite carbide. The cam, which is composed of a hardenable steel, should be fully hardened and, during tempering in the hardening operation, the basic hardness should be set in a range of between 25 and 40 HRC. The cam should then be edge-zone-hardened in a two-stage heating process by induction hardening at a medium frequency of 10-35 kHz, after the preheating stage of the heating process, the introduction of heat being interrupted for 0.3-1.
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: August 27, 2002
    Assignee: DaimlerChrysler AG
    Inventors: Andreas Barth, Henning Blöcker, Klaus Brandes, Frank Rohwer
  • Patent number: 6431017
    Abstract: A mechanism for moving two alignment devices having vertical parallel faces for identical flat workpieces such as cardboard blanks, simultaneously in opposite directions. The mechanism includes two reciprocating slides that simultaneously drive the alignment devices in opposite directions. The slides are operated by an articulated mechanism including a pair of extension arms and a drive cradle attached to an oscillating shaft. Actuate projections on the drive cradle engage rotationally with complementary arcuate surfaces on coupling mechanisms, preferably formed of a plastic material such as PETP, attached to the extension arms as the shaft oscillates. Compression springs bias the extension arms and the associated coupling mechanisms against the projections to eliminate the effect of wear in the mechanism.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: August 13, 2002
    Assignee: Bobst SA
    Inventor: Pierre Robadey
  • Publication number: 20020096014
    Abstract: A cam with a bore that has a funnel-shaped core-insertion section. To ensure that the cam will rest more securely against the core and remain more precisely centered, the section (5) comprises at least two mutually aligned conical extents (6 & 7), each expanding outward at a different apical angle.
    Type: Application
    Filed: May 25, 2000
    Publication date: July 25, 2002
    Inventor: Rudolf Leuthold
  • Patent number: 6422099
    Abstract: A transmission device for knife changing mechanism of a machine center includes a main shaft and a control shaft whose idle gear is engaged with a toothed section of the main shaft and the other idle gear on the control shaft is engaged with a rack which is moved with the rotation of a cam disk. An arm is engaged with the cam disk and pulls the main shaft when the cam disk is rotated by an output shaft from a motor. The control shaft is allowed to shaft toward the main shaft to reduce a gap between the control shaft and the main shaft.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: July 23, 2002
    Inventor: Ying Sun
  • Publication number: 20020073945
    Abstract: A camshaft used in an internal combustion engine which has reduced weight and added wear resistance at a lobe of the camshaft. The camshaft is provided to add increased wear resistance and reduced weight to the internal combustion engine for increased efficiency of the internal combustion engine. The camshaft includes wear resistant material at the surface of the lobe of the camshaft. The wear resistant material is distributed on the outer surface of the lobe and incorporated into the base material.
    Type: Application
    Filed: December 19, 2000
    Publication date: June 20, 2002
    Inventors: Thomas Majewski, Michael J. Pollard
  • Patent number: 6393938
    Abstract: Cam follower includes a cantilevered stud, and a bearing unit mounted on a head portion of the stud and having rollers and an outer ring. The outer peripheral surface of the outer ring constitutes a cam-driven surface. The cam-driven surface includes a central load-bearing region substantially parallel to the axis of the cantilevered stud, and a couple of load-reducing bearing regions indented radially inward from the central load-bearing region and located on opposite sides of the central load-bearing region axially symmetrically to each other. Mechanical stress acting on the inner surface of the outer ring, outer surface of the roller and outer surface of the stud's head portion presents a maximum intensity level at their respective points corresponding to a point of the outer ring which is subjected to maximum mechanical contact stress from a cam.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: May 28, 2002
    Assignee: Tsubakimoto Chain Co.
    Inventors: Shinsuke Sahara, Tatsuo Maeno, Futoshi Kosugi
  • Publication number: 20020053255
    Abstract: The invention relates to a simplified, economical and rapid method for the production of a camshaft. In accordance with the invention, functional elements (2) consisting of a plurality of flat material layers (3) are deposited on a base shaft (1). The base shaft (1) is then deformed by hydraulic expansion in such a way that the functional elements (2) are fixed on the base shaft (1).
    Type: Application
    Filed: September 27, 1999
    Publication date: May 9, 2002
    Applicant: COHEN, PONTANI, LIEBERMAN & PAVANE
    Inventors: KONRAD KULUS, ALFRED BEIER
  • Patent number: 6382038
    Abstract: A transmission mechanism for transmitting motion with a uniform speed transmission factor between first and second moveable elements comprises a set of cams adapted to rotate with the first moveable element about a revolving axis, and corresponding arrays of spaced-apart rollers connected to the second moveable element for movement therewith. The cams cooperate in relays with the corresponding arrays of spaced-apart rollers to continuously communicate motion between the first and second moveable elements. The cams are in rolling contact with the corresponding arrays of rollers, whereby torque and force transmission can be performed smoothly. Furthermore, the transmission mechanism allows for the reversal of both the direction of the input speed and the roles of the first and second moveable elements.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: May 7, 2002
    Assignee: McGill University
    Inventors: Jorge Angeles, Max Antonio Gonzalez-Palacios
  • Patent number: 6382044
    Abstract: An actuator for a papermaking machine. The actuator is designed to function either as a slice lip or coatweight actuator or as a dilution actuator depending on the orientation of a cam disk in the actuator. The drive motor and position sensor in the actuator are in a side by side arrangement allowing for a single cover to enclose both the drive motor and the position sensor. The actuator has a manual adjustment which comes into engagement with the drive motor only when it is desired to manually adjust the actuator. The manual adjustment is designed so that it does not lock with the drive motor and requires only a moderate amount of force to be brought into engagement with the manual shaft. The actuator has a drive block connected to the speed reducer of the actuator. The drive block interfits with the cam disk in a manner to function as a spring loaded splined connection. This connection provides the necessary force to prevent rotary free play of the cam disk.
    Type: Grant
    Filed: April 14, 2000
    Date of Patent: May 7, 2002
    Assignee: ABB Automation Inc.
    Inventors: Gordon K. Reed, Albert A. Arehart
  • Patent number: 6377776
    Abstract: A mechanism for applying pressure load force in a reproduction apparatus fuser device having at least one heated fuser member and a pressure member in nip relation to permanently fix a marking particle image to a receiver member. The pressure load force applying mechanism includes a load cam selectively rotated about a drive shaft, the cam having a wide constant radius section to have a wide tolerance in the stopping position. A cam follower member is associated with the load cam. A force of the load cam is applied via the cam follower member. A control mechanism is provided for the load pressure applying mechanism. The control mechanism includes a raised section at each end of the constant radius section of the load cam to act as stops for the follower.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: April 23, 2002
    Assignee: Heidelberg Digital L.L.C.
    Inventors: James V. Orchard, II, David F. Cahill
  • Publication number: 20020043126
    Abstract: A cam mechanism through which torque applied to an input shaft is converted into the bi-directional rotation and reciprocating axial movement of an output shaft. Two cam elements are utilized, one consisting of a roller gear cam attached to the input shaft, and the other of a recessed channel type cam formed on one side of the roller gear cam. Two power transfer mechanisms are also utilized, one consisting of a turret installed adjacently to the roller gear cam as means of imparting a rotational movement to the output shaft, and the other consisting of a reciprocating swing arm of which one end is driven by the channel type cam. The turret is connected to the output shaft through a sliding spline that allows the output shaft to move axially within the turret, by means of a movable connection with the reciprocating swing arm, while being rotationally driven by the splined connection.
    Type: Application
    Filed: November 7, 2001
    Publication date: April 18, 2002
    Inventor: Heizaburo Kato
  • Publication number: 20020040618
    Abstract: A self-centering system is described for holding an object (e.g. a vial, tube or cell) to maintain the longitudinal axis of the object in the desired orientation. The system includes two cam members which are pivotably mounted on parallel axes. The cam members include sloped surfaces which are able to accommodate objects of various diameters or shapes (e.g. circular or non-circular cross-section). The cam members are biased (e.g. with weights or springs) such that the sloped surfaces are automatically brought into contact with the object to be oriented and supported.
    Type: Application
    Filed: September 14, 2001
    Publication date: April 11, 2002
    Applicant: Hach Company
    Inventor: Nelson E. Dervaes
  • Publication number: 20020029651
    Abstract: A camshaft includes a device for hydraulic adjustment of a relative rotating position of the camshaft for the purpose of influencing valve timing. The device has a drive wheel, a cell wheel, and an impeller. The impeller is disposed, by way of vanes, within cells of the cell wheel and can carry out relative motion. A locking arrangement, which operates in the starting phase of the internal-combustion engine, is provided between the cell wheel and the impeller. The locking arrangement is formed by a spring-loaded, hydraulically operated piston housed in one of the blades of the impeller and by a corresponding receiving device for the piston provided in a constructional unit consisting of the drive wheel and the cell wheel. The piston of the vane interacting with the receiving device is acted upon from a pressure duct of the vane. A reversal valve in the pressure duct is connected to pressure spaces of one of the cells.
    Type: Application
    Filed: July 9, 2001
    Publication date: March 14, 2002
    Inventors: Gerold Sluka, Edwin Palesch, Wolfgang Stephan, Axel Willi Jochim, Andreas Knecht
  • Patent number: 6354172
    Abstract: A mechanical timer to control multiple steps of a process comprising a first cam having a shaft, and a second cam having a shaft, wherein the shaft on the first cam extends into the shaft of the second cam. The rotational relationship between the first and second cams determines the length of time for at least one process step. First and second user adjustable elements are attached to the first and second cams. These user adjustable elements do not require any disassembly of the mechanical timer by the user or require any tools. A plurality of switches engage the cams to control various process steps.
    Type: Grant
    Filed: January 31, 2000
    Date of Patent: March 12, 2002
    Assignee: Aquion Partners Limited Partnership
    Inventors: Peter Piacenza, Amy Cotton, Stephen Gaynes, John H. Kargenian
  • Publication number: 20020020371
    Abstract: The present invention is directed to a modular camshaft assembly having an elongated shaft, at least one cam lobe assembly, at least one spacer assembly, and a cam adapter assembly. Each cam lobe assembly is selectively secured to the elongated shaft. Each spacer assembly is secured to the elongated shaft, wherein the spacer assembly is selectively positioned adjacent the cam lobe assembly. The cam adapter assembly is secured to the elongated shaft and adapted to connect the modular camshaft assembly to a drive assembly.
    Type: Application
    Filed: August 20, 2001
    Publication date: February 21, 2002
    Inventor: Daniel H. Jesel
  • Patent number: 6305242
    Abstract: A camshaft 10 has alignment formations at one axial end for enabling the camshaft 10 to be correctly aligned with another component during assembly. In the invention, the alignment formations comprise two bores 18 of the same diameter but different depth.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: October 23, 2001
    Assignees: Cummins Engine Company Ltd., Iveco (UK) Ltd., New Holland U.K. Ltd.
    Inventors: Damian P. Smith, Hanz-Jurg Nydegger, Gary Steven Antcliff, David J. S. Page, Vic Wiffen
  • Patent number: 6301993
    Abstract: A cam-guided adjustable pedal actuator assembly for a vehicle includes a housing for connection to vehicle structure and a linear actuator operatively connected to the housing. The cam-guided adjustable pedal actuator assembly also includes a pedal operatively connected to the linear actuator for adjusting a position of the pedal relative to the housing. The pedal has a cam surface to cooperate with the housing as a force is applied to the pedal such that the housing and the pedal effectively act as one solid member to transfer force to an actuating member in a manner of a conventional pedal.
    Type: Grant
    Filed: October 18, 1999
    Date of Patent: October 16, 2001
    Assignee: Delphi Technologies, Inc.
    Inventors: Brian Norman Orr, Waldemar Wawrzyniec Gmurowski