Hollow Rod, Lubricated Patents (Class 74/587)
  • Patent number: 8794605
    Abstract: A first elastic member coupling a first inner cylinder and a first cylindrical part is integrated with the outer surface of the first inner cylinder and the inner surface of the first cylindrical part, thereby ensuring flexibility in molding the first cylindrical part. In addition, a stopper body is formed by making a part of the inner surface of the first cylindrical part facing the first inner cylinder in a main-load application direction project inward along a radius of the first cylindrical part.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: August 5, 2014
    Assignee: Kurashiki Kako Co., Ltd.
    Inventor: Masaaki Mizobe
  • Patent number: 8205526
    Abstract: A system for pressurizing a hub having a bearing chamber formed from an air-tight sealing arrangement located on each end of a hub to form a closed air system in the interior of the hub or in combination with a second hub. The closed air system fluidly coupled to a pressurized air tank for receiving pressurized air. A pressure gauge provides a visual indication of the air pressure in the closed air system whereby a breached seal condition within the hub can be detected.
    Type: Grant
    Filed: April 24, 2009
    Date of Patent: June 26, 2012
    Inventor: Henry Dombroski
  • Patent number: 7398752
    Abstract: The present invention provides an improved rocker arm system for actuating poppet valves in high performance internal combustion engines. The rocker arm provides trunnion journals extending from each side fitted to outboard bearing mounts to guide the motion of the rocker arm. An I-beam rocker arm having high stiffness and low mass is disclosed.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: July 15, 2008
    Inventor: Robert R. Weaver
  • Patent number: 7246589
    Abstract: The invention proposes a valve train of an internal combustion engine comprising a tappet (7) and a tappet pushrod (1) that is actuated by said tappet (7), said tappet pushrod (1) being at least partly hollow and comprising on one end (3), a first support (4) for an at least indirectly contacting pressure piston (5) of a hydraulic lash adjuster (6) of said tappet (7) that follows a periodic driving element, typically a cam. A second support (9) for a follower member (2), typically a rocker arm, is arranged on a further end (8) of the tappet pushrod (1). The first support (4) comprises a passage (10) for hydraulic medium that can be routed out of the pressure piston (5) during operation of the internal combustion engine into an interior (11) of the tappet pushrod (1), wherein a pipette means (12) is installed in the tappet pushrod (1) for retaining a hydraulic medium column during a standstill of the internal combustion engine.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: July 24, 2007
    Assignee: Schaeffler KG
    Inventors: Henning Karbstein, William Carter, David Kehr
  • Patent number: 7246590
    Abstract: The invention proposes a valve train (1) of an internal combustion engine comprising a tappet (7) and a tappet pushrod (1) that is actuated by said tappet (7), said tappet pushrod (1) being at least partly hollow and comprising on one end (3), a first support (4) for a pressure piston (5) of a hydraulic lash adjuster (6) of said tappet (7) that follows a periodic driving element such as a cam. A second support (9) for a follower member (2) such as a rocker arm is arranged on a further end (8) of the tappet pushrod (1). The first support (4) comprises a passage (10) for hydraulic medium that can be routed out of the pressure piston (5) during operation of the internal combustion engine into an interior (11) of the tappet pushrod (1), a one-way valve means (12) being installed in the tappet pushrod (1) for retaining a hydraulic medium column during a standstill of the internal combustion engine.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: July 24, 2007
    Assignee: Schaeffler KG
    Inventors: Henning Karbstein, William Carter, David Kehr
  • Patent number: 6991065
    Abstract: To lubricate a length of track, a plurality of lubricating nozzles are provided. Each nozzle is fed by the output of a single positive displacement pump, and all the pumps are controlled by a computer. Vibration sensors, sound sensors, or L/V ratio sensors detect physical qualities which occur as a train passes a given point, and another detector measures the time between successive wheels on the truck of a car as it passes a given point to measure train speed. The computer compares the output readings measured by the detector to a table of outputs in its memory that are indicative of a lubricated track to determine if lubrication is needed.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: January 31, 2006
    Inventors: Carlton L. Leslie, Kevin Kostelny-Vogts
  • Patent number: 6976559
    Abstract: The invention relates to a piston compressor, particularly a hermetically enclosed refrigerant compressor, with a crank drive, having a crank shaft with an eccentric crank pin and an oil channel arrangement, and a connecting rod with a first piston-side connecting rod eye and a second pin-side connecting rod eye, said eyes having between them a connecting rod shank with a longitudinal channel, which opens into the connecting rod eyes. In this compressor, it is endeavoured to improve the lubricating conditions. For this purpose a bearing element is arranged between the crank pin and the second connecting rod eye, which is unrotatably connected with the second connecting rod eye under formation of an oil channel, the longitudinal channel communicating with the oil channel and a control arrangement being provided, which ensures a communication between the oil channel and the oil channel arrangement at least once per rotation of the crank pin.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: December 20, 2005
    Assignee: Danfoss Compressors GmbH
    Inventors: Frank Holm Iversen, Preben Bjerre
  • Patent number: 6601473
    Abstract: A lever assembly includes a lever and a fastener for pivotally mounting the lever to a fixed support member. The lever is composed of a lever body made of a plastic and a reinforcement plate assembled with the plastic lever body. The lever body has a first groove formed in one surface of the lever body and extending from a central through-hole to a position in proximity of a mount hole formed at one end of the lever body, and a second groove formed in the opposite surface of the lever body and extending from the central through-hole to a position in proximity of the other end of the lever body. The reinforcement plate is fitted in the first and second grooves across the central through-hole of the lever body. The fastener comprised of a screw with flanged head has a portion lying over part of the reinforcement plate to prevent the reinforcement plate from displacing off the lever body.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: August 5, 2003
    Assignee: Tsubakimoto Chain Co.
    Inventor: Tadasu Suzuki
  • Patent number: 6581558
    Abstract: An internal combustion engine tapered push rod assembly construction is disclosed, as well as a novel method of partially making the assembly elongated body section component from tubular push rod feedstock by removing excess exterior feedstock to form the body section exterior taper rather than by known conventional radial compression of feedstock exterior material that otherwise results in an unwanted feedstock reduced internal diameter, and an unwanted increased body section wall thickness configuration.
    Type: Grant
    Filed: April 23, 2002
    Date of Patent: June 24, 2003
    Inventor: Vern D. Ott
  • Publication number: 20030075007
    Abstract: A connecting rod apparatus for converting a rotational motion to a reciprocal linear motion by connecting an eccentric portion of a crank shaft to a piston. The connecting rod apparatus has a bushing, a connecting rod and a connecting member. The bushing is rotatably connected with the eccentric portion, and has a sloping side on its outer surface with a predetermined slope in regard to an axis of the eccentric portion. The connecting rod has a piston attachment formed at one end for being connected with a piston pin which is connected with the piston. A connecting portion is formed at another end of the connecting rod and is connected with the bushing in a direction of the axis along the sloping side of the bushing. The connecting member connects the connecting portion and the bushing so that the connecting portion and the bushing can move relative to one another.
    Type: Application
    Filed: September 13, 2002
    Publication date: April 24, 2003
    Inventor: Seung-Don Seo
  • Patent number: 6401594
    Abstract: A connecting rod including a generally vertical oriented rod section having a piston end and a connecting end. A non-through bore formed in the connecting end receives a pin mounted eccentrically on a shaft, such that rotation of the shaft causes the rod section to reciprocate. An axial groove formed in the bore allows air in the bore to escape during assembly. When a lubricant is disposed in the bore, the groove also provides lubrication over the entire length of the pin.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: June 11, 2002
    Assignee: Thomas Industries Inc.
    Inventor: Roy J. Rozek
  • Patent number: 6382081
    Abstract: A reciprocating compressor (K1-K3) comprising a connecting rod (21) in which a small end portion (22) having a small hole (22a) and a large end portion (25) having a large hole (25a) are coupled with each other; wherein the small end portion (22) is coupled with a piston (24) by a piston pin (23) loosely fitted into the small hole (22a), while an eccentric shaft (7a) of a crank shaft (7) is loogely fitted into the large hole (25a), wherein the large end portion (25) is formed with a cylindrical bore (25b) having an axis passing through a center of the large hole (25a) and a fixing hole (25c, 28, 30) communicating with the cylindrical bore (25b); wherein after a cylindrical distal end retaining portion (22c) of a rod portion (22b) of the small end portion (22) has been loosely fitted into or lightly press fitted into the cylindrical bore (25b), not only the cylindrical distal end portion (22c) is fixed in the cylindrical bore (25b) by inserting a locking pin (26) into the fixing hole (25c, 28, 30) while a smal
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: May 7, 2002
    Assignee: Matsushita Refrigeration Company
    Inventors: Yasuhiko Tanaka, Ikutomo Umeoka, Ichiro Kita, Masataka Oda
  • Patent number: 5685267
    Abstract: A spherical joint connecting rod. The connecting rod has a small end which terminates in a sphere or ball, and a big end which is adapted to sliding engage an engine crankshaft. The small end and big end of the connecting rod are coupled by a shank having a substantially elliptical cross-section. The shank has formed therethrough an internal oil passage which allows transmission of lubricating/cooling oil from the engine crankshaft to the spherical joint of the piston and to the piston cooling gallery.
    Type: Grant
    Filed: February 7, 1996
    Date of Patent: November 11, 1997
    Assignee: Cummins Engine Company, Inc.
    Inventors: Paul David Wiczynski, Craig Allen Barnes, Richard Belush, Richard Duane Conrow, Siegfried Gustav Mielke
  • Patent number: 5522280
    Abstract: The connecting link is manufactured from an elongated hollow extrusion of aluminum, which can be cut to any desired length and bent, as required. Molded plastic coupling members have tongues which are inserted into the open ends of the hollow extrusion and crimped in place to hold them securely. The coupling members have integrally formed socket structures to receive complementary ball structures which form the pivot connections of the wiper system.
    Type: Grant
    Filed: December 23, 1993
    Date of Patent: June 4, 1996
    Assignee: United Technologies Motor Systems, Inc.
    Inventor: Daniel P. Bexten
  • Patent number: 5425286
    Abstract: A pedal rod is made of two separate pieces, a rod part and a head part, joined together by a crimped joint having as many as six elements. The parts may be selectively plated and/or coated to provide environmental resistance or color coding.
    Type: Grant
    Filed: January 6, 1994
    Date of Patent: June 20, 1995
    Inventor: Charles E. Laue
  • Patent number: 5413013
    Abstract: A sand molding machine comprises an elongated tie rod with a removable bearing sleeve portion at its distal end. The distal end of the rod where the sleeve is attached has a reduced diameter end spindle portion with multiple stepped support sections on its outer surface. The sleeve is of generally hollow cylindrical configuration and fits over the spindle end portion of the rod. The sleeve has an outward cylindrical bearing surface, and an inward surface with stepped support sections corresponding to and contacting the outside support sections on the rod when the sleeve is attached. The respective supporting sections on the rod and the sleeve provide a strong tight attachment of the sleeve to the rod without requiring excessive force in order to attach and/or remove the bearing from the rod.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: May 9, 1995
    Assignee: HACA Spare Parts Technology Inc.
    Inventor: George Zambo
  • Patent number: 5176702
    Abstract: Releasable ratchet mechanism for medical instruments such as endoscopic instruments are disclosed. The ratchet mechanism includes: a leaf spring with a locking barb which is located on a handle of the medical instrument; a ratchet on a lever arm of the medical instrument which lever arm is pivotally engaged to the handle; and a latch on the handle of the medical instrument. The latch on the handle engages and resiliently deforms the leaf spring to cause engagement of the locking barb in a groove of the ratchet when the latch is in a first position. When in a second position, the latch releases the locking barb from the ratchet groove. Preferably, the locking barb has an extending edge surface on an axis which is substantially parallel to the pivoting axis of the handle and lever arm, and the teeth of the ratchet have extending edge surfaces on axes substantially parallel to the extending edge surface of the locking barb.
    Type: Grant
    Filed: February 7, 1992
    Date of Patent: January 5, 1993
    Assignee: Symbiosis Corporation
    Inventors: Thomas O. Bales, Gregory J. Murphy, Frank A. Scarfone, Charles R. Slater, Kevin W. Smith
  • Patent number: 4984544
    Abstract: A lubricating system is provided at a junction of relatively rotatable members of an engine in an environment where oil comes into contact with the external surface of the rotatable members. The junction includes a relatively rotatable member provided with a bore and pin extending through the bore. The pin is snugly received in the bore so that rotation between the pin and relatively rotatable member may occur. An example of such a system is provided by the wrist pin connection to a piston. According to the invention, within the bore are recesses spaced inwardly and separated from both ends of the bore and arranged diametrically opposed to each other on a line transverse to the principal linear movement of the wrist pin. A pocket for oil is provided by each of the recesses between the bore of the rotatable member and the pin for accumulation of oil to lubricate between the surfaces of the pin and bore.
    Type: Grant
    Filed: November 29, 1989
    Date of Patent: January 15, 1991
    Inventor: Richard L. DeBiasse
  • Patent number: 4856366
    Abstract: A refrigeration gas compressor comprises a piston reciprocably movable to effect gas compression, a motor-driven rotatable crankshaft, and a connecting rod between a crank pin on the crankshaft, and a wrist pin on the piston. A crank pin receiving hole and a wrist pin receiving hole in opposite ends of the connecting rod are connected by an oil passage. The oil passage is connected to a groove in the upper side wall in the crank pin receiving hole. The crank pin has two lubricating oil supply ports at opposite sides of its outer surface through which lubricating oil is pumped. A bearing assembly comprising semi-circular upper and lower bearing sections is disposed around the crank pin. Each bearing section has a smooth inner surface. The upper bearing section has oil well recesses near, but spaced from, opposite ends of its inner surface which receive oil from the oil supply ports each time a port moves therepast.
    Type: Grant
    Filed: March 9, 1988
    Date of Patent: August 15, 1989
    Assignee: Vilter Manufacturing Company
    Inventor: John G. Nikolaus
  • Patent number: 4693140
    Abstract: Hollow tubular members for the transmission of compressive, tensile, bending and torsional forces. The hollow member is made of fibre-reinforced plastics and comprises a tubular central portion and tapered conical end portions which form an integral whole with the central portion. A synthetic organic polymer is used as the reinforcing fibre.
    Type: Grant
    Filed: October 28, 1986
    Date of Patent: September 15, 1987
    Assignee: Fischer Gesellschaft M.B.H.
    Inventors: Walter A. Stephan, Josef Knauseder
  • Patent number: 4631970
    Abstract: A pumping unit for pumping fluids from a location beneath the surface of a field. The rotary motion of a crankarm is changed to a reciprocating motion of a pair of flexible members by pitman arms pivotally secured at one end to the crankarm and at the other end to the flexible members which extend from such connection over a plurality of rollers and then vertically downward toward the well head. The flexible members are connected at their other ends to means connected to the polished rod. Portions of the flexible members and the polished rod lie in the same vertical plane so that true vertical reciprocating movement is imparted to the polished rod. The flexible members comprise non-metallic straps having a substantial width to provide stability of movement.
    Type: Grant
    Filed: April 22, 1983
    Date of Patent: December 30, 1986
    Assignee: Jerden Industries, Inc.
    Inventor: Dennis A. Pauls
  • Patent number: 4498406
    Abstract: A lubrication system for eccentric drives in a sewing machine wherein lubricant is fed through a hollow drive shaft and communicative radial ports. At its outlet end, the radial port is in fluid communication with a lubricant reservoir arranged on the eccentric's periphery. The lubricant reservoir being disposed on that portion of the eccentric's periphery measuring the greatest distance from the eccentric's rotating center.
    Type: Grant
    Filed: March 28, 1983
    Date of Patent: February 12, 1985
    Assignee: Union Special G.m.b.H.
    Inventor: Wolf R. Von Hagen
  • Patent number: 4353268
    Abstract: A connecting rod for the control and/or transmission of force, particularly for use in aeronautical construction, comprises a tubular body formed of high-strength fibres bonded together by polymerized epoxy resin. The body has frusto-conical end portions each surrounding a frusto-conical skirt portion of an end member which is adapted to receive coupling means. A ferrule, also formed of bonded fibres, is provided to tighten each frusto-conical end portion of the body against the frusto-conical skirt portion of the corresponding end member.
    Type: Grant
    Filed: March 7, 1977
    Date of Patent: October 12, 1982
    Assignees: Avions Marcel Dassault-Breguet Aviation, Societe Anonyme de Recherches de Mecanique Appliquee-Sarma
    Inventors: Claude Picard, Daniel Daugny