Cylinder Lubricators Patents (Class 184/18)
  • Patent number: 10294931
    Abstract: The present invention relates to a connecting rod comprising a small spherical end having a ball and a main rod. The ball and the main rod are designed as individual parts and form, when assembled, a connecting rod having a spherical small end.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: May 21, 2019
    Assignee: GKN Sinter Metals Engineering GmbH
    Inventors: Antonio Casellas, Matthias Innerbichler, Norbert Innerhofer
  • Patent number: 10197311
    Abstract: A compressor (20) has a case (22) and a crankshaft (38). The case has a number of cylinders (30 32). For each of the cylinders, the compressor includes a piston (34) mounted for reciprocal movement at least partially within the cylinder. A connecting rod (36) couples each piston to the crankshaft. A pin (44) couples each connecting rod to the associated piston. Each pin has first (52) and second (53) end portions mounted to first (56) and second (57) receiving portions of the associated piston and a central portion (48) engaging the associated connecting rod. For each of the pistons a pair of first and second at least partially non metallic plugs have respective stems received in the pin first and second end portions and respective heads facing a wall surface of the associated cylinder.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: February 5, 2019
    Assignee: Carrier Corporation
    Inventors: Matthew J. Mowers, Paul J. Flanigan, Russell G. Lewis
  • Patent number: 9925577
    Abstract: A galling-resistive insert is positioned on an outer surface of a mandrel assembly. The insert is secured at the outer surface of the mandrel assembly and functions to reduce galling of an inner surface of a tubular blank during a rotary-draw bending operation.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: March 27, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Andrey M. Ilinich, S. George Luckey, Jr., Stephen Kernosky, Feng Ren
  • Patent number: 9476353
    Abstract: The two-cycle engine includes a piston capable of reciprocating along a cylinder, the piston being provided with piston rings; and a lubrication port provided in the cylinder, the lubrication port being used to supply a lubricant to a sliding surface of the cylinder on which the piston rings slide. Inter-ring spaces are provided, each inter-ring space being between adjacent piston rings. In addition, the two-cycle engine includes a controller used to adjust a lubrication period of lubricating from the lubrication port during movement of the piston toward a top dead center thereof, so that a period before an uppermost inter-ring space passing by the lubrication port is excluded from the lubrication period and a period in which at least part of a lowermost inter-ring space faces the lubrication port is included in the lubrication period.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: October 25, 2016
    Assignee: IHI CORPORATION
    Inventors: Yoshiyuki Saito, Takeshi Yamada, Yoshiyuki Umemoto
  • Patent number: 8646984
    Abstract: A roller assembly having a roller tube, a fixed shaft inside the roller tube, a bearing mounted on the shaft, an inner casing mounted on the bearing and rotatable with respect to the shaft, an outer casing fixedly mounted on the shaft, a shield cap mounted on the inner casing, and a seal member mounted between the roller tube, the shield cap and the inner casing for sealing the roller assembly. Facing walls of the inner casing and outer casing define inner cells and a first labyrinth path for reducing migration of contaminants through the inner cells. Facing walls of the outer casing and shield cap define outer cells and a second labyrinth path for reducing migration of contaminants through the outer cells. The facing walls of the outer casing and shield cap are provided with gel for further reducing migration of contaminants through the outer cells.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: February 11, 2014
    Inventor: Jean-Pierre Gagnon
  • Patent number: 8230835
    Abstract: Emergency lubrication systems and methods for an engine are provided. One system includes a primary lubrication system including a de-aeration oil tank configured to store de-aerated oil until the oil is de-aerated, a first oil supply line configured to provide de-aerated oil to the engine, and a first valve configured to control the flow of oil through the primary lubrication system. The system further includes a secondary lubrication system including a second valve coupled to the de-aeration oil tank and configured to control the flow of oil through the secondary lubrication system, and a second oil supply line coupled to the engine and to the de-aeration oil tank via the second valve. One method includes the steps of detecting a predetermined event in the engine, preventing the aerated oil from entering the primary lubrication system, and using the aerated oil in the secondary lubrication system to lubricate the engine.
    Type: Grant
    Filed: March 10, 2009
    Date of Patent: July 31, 2012
    Assignee: Honeywell International Inc.
    Inventors: Nathan Gibson, John Hogan, John D. Robinson, Mike O'Brien
  • Patent number: 7819236
    Abstract: The conveyor for bottles or containers in general comprises a conveyor belt for supporting the bottles, and a lubricant dispensing unit associated with the conveyor belt. The lubricant dispensing unit comprises a cylindrical element rotatably connected to the conveyor belt and associated with a lubricant feed member, such that the feed member transfers lubricant to the cylindrical element and this, by rotating in contact with the conveyor belt, releases the lubricant onto the conveyor belt. The lubrication process for a conveyor belt of a conveyor for bottles or containers in general consists of feeding lubricant onto a cylindrical element and rotating the cylindrical element in contact with the conveyor belt, such that the lubricant passes onto the conveyor belt.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: October 26, 2010
    Assignees: Sunbird Investments Limited, Dropsa S.p.A.
    Inventor: Walter Divisi
  • Patent number: 7509937
    Abstract: An improved lubrication system and method for an internal combustion engine that includes an inertia pump in a piston that reacts to the movement of the piston and conveys a predetermined measure of lubricating oil to the space between the piston and its adjacent cylinder wall immediately below the upper piston rings as the piston reaches top dead center of its stroke cycle. A first embodiment utilizes check valves to responsively open and close passages for the pump in order to control the injection of the proper amount of oil during each cycle. A second embodiment relies on a single moving plunger mass element to provide both the pumping and the valving functions of the inertia pump. A third embodiment utilizes throttle valves to control the injection of the proper amount of oil and allow for a spill path without additional passages. A fourth embodiment utilizes a throttle valve and a check valve in combination to provide secure pumping and a spill path for excess oil.
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: March 31, 2009
    Assignee: Advanced Propulsion Technologies, Inc.
    Inventor: Peter Hofbauer
  • Patent number: 6983680
    Abstract: Smaller and lighter hydraulic pump/motors provide remarkably improved volumetric efficiency with pistons having body portions substantially as long as the axial length of the respective cylinders in which they reciprocate. A plurality of respective lubricating channels form a single, continuous lubricating passageway entirely within the cylinder block and not connected by either fluid “input” or fluid “output” passageways, being replenished solely by a minimal flow of fluid to and from the valve end of each cylinder and passing between each respective cylindrical wall of each cylinder and the axial cylindrical body of each respective piston. Several embodiments are disclosed in combination with various spring-biased hold-down assemblies. The preferred embodiment included a fixed cylinder block, a roller bearing mounting between the wobbler and rotor of a split-swash plate, with piston shoes contacting the wobbler directly without any intermediary apparatus.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: January 10, 2006
    Assignee: Torvec, Inc.
    Inventors: Vernon E. Gleasman, Keith E. Gleasman, Matthew R. Wrona
  • Publication number: 20040231926
    Abstract: A method for preparing one or more lubricated surfaces of an article to reduce the break-out force and sliding frictional force. A lubricant is applied to one or more surfaces, and the lubricant-coated surface is treated by exposing the surface to an energy source, wherein the energy source is an ionizing gas plasma at about atmospheric pressure, gamma radiation, or electron beam radiation. One or more of the surfaces may be exposed to the ionizing gas plasma at about atmospheric pressure prior to application of the lubricant. Another aspect of the invention is articles produced using one or more methods of the invention.
    Type: Application
    Filed: March 2, 2004
    Publication date: November 25, 2004
    Inventors: Vinay G. Sakhrani, Joel L. Williams, Charles Tomasino, Paul M. Vernon
  • Patent number: 6527087
    Abstract: To reduce the size and weight of an oil tank for a dry sump type lubricating system. A separate oil tank of a dry sump type lubricating system is mounted on the front surface of a front case cover constituting part of a crankcase divided into front and rear parts. An effective volume portion, in which oil supplied from the crankcase side via scavenging pumps and cooled by an oil cooler is contained, is provided in the oil tank. The bottom portion of the effective volume portion is connected to a feed pump on the crankcase side via an outlet side passage. A tank side pipe portion extending rearwardly through the oil tank is integrally provided at a portion of the oil tank higher than the oil level in the oil tank. The tank side pipe portion is connected to a crankcase side pipe portion integrally provided on an upper portion of the front case cover to form an overflow passage.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: March 4, 2003
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Katsuhiko Ito, Kenji Okubo, Akio Senda, Masahiro Inoue
  • Patent number: 6305420
    Abstract: A head gasket which acts, when clamped between a head and a cylinder block of an internal combustion engine, to form a seal around at least one lubricant or hydraulic fluid passage which extends between the head and the block. The gasket also comprises a non-return valve which extends across said passage and allows flow of liquid in said passage towards the head but prevents flow of liquid in said passage towards the block.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: October 23, 2001
    Assignee: Federal-Mogul Technology Limited
    Inventors: Alan William Atkinson, Melanie Jayne Walsh
  • Publication number: 20010002979
    Abstract: A piston-driven oil pump mechanism constructed to simplify structure and reduce parts for increased compression efficiency but drastically reduced generating of noise, the mechanism comprising: an oil pump cylinder additionally mounted at one side of a cylinder block formed with a cylinder where a piston is reciprocally driven by explosion in a combustion chamber; an oil pump piston reciprocally driven in the oil pump cylinder by a crank shaft where reciprocal motion of the piston is changed rotary motion; an oil drainage outlet so formed to communicate with an oil gallery above the oil pump cylinder; an oil suction inlet formed adjacent to the oil outlet above the oil pump cylinder for connection to an oil pan; and oil suction and oil drainage valves openably and closeably actuated by a valve train for opening the oil suction inlet when the oil pump cylinder is downwardly actuated to block the oil drainage outlet and for closing the oil suction inlet when the oil pump cylinder is upwardly actuated to open th
    Type: Application
    Filed: November 30, 2000
    Publication date: June 7, 2001
    Inventor: Jae-Man Cho
  • Patent number: 5852992
    Abstract: An internal combustion engine includes separated oil drain-back and crankcase ventilation passages. The oil drain-back passages extend from the cylinder head to a position below the top level of oil in the engine's crankcase. The crankcase ventilation passages extend from passages formed in the main bearing bulkheads from positions above the oil level in the crankcase and ultimately through the cylinder head. Oil dams surrounding the uppermost portions of the crankcase ventilation passages prevent oil from running downwardly through the crankcase ventilation passages.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: December 29, 1998
    Assignee: Ford Global Technologies, Inc.
    Inventors: David Lee Boggs, Daniel James Baraszu, David Mark Foulkes, Enio Goyannes Gomes
  • Patent number: 5816134
    Abstract: A compressor has a piston (11) that reciprocates between a top dead center and a bottom dead center in a cylinder bore (2a) by means of a driving body (9) mounted on a rotary shaft (6) in a crank chamber (5) during the rotation of the rotary shaft (6). The piston (11) has an outer circumferential surface that slides against an inner circumferential surface of the cylinder bore (2a). The outer circumferential surface of the piston (11) is provided with a groove (17; 44; 46) extending in the direction of an axis (S) of the piston (11). During reciprocation of the piston (11), lubricating oil adhered to the inner circumferential surface of the cylinder bore (2a) is collected in the groove (17; 44; 46). When the groove (17; 44; 46) is exposed to the inside of the crank chamber (5) from the cylinder bore (2a) during the reciprocation of the piston (11), the lubricating oil in the groove (17; 44; 46) is supplied to the inside of the crank chamber (5).
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: October 6, 1998
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Kenji Takenaka, Hiroaki Kayukawa, Takahiro Hamaoka, Takashi Michiyuki, Mitsuru Hashimoto, Masahiro Kawaguchi
  • Patent number: 5806631
    Abstract: A number of embodiments of direct piston pin lubrication systems for reciprocating machines such as internal combustion engines. In all of the embodiments, the hollow interior of the piston pin is employed as a distribution passage with radial drillings extending through the piston pin for lubricating the various journals thereof. In some embodiments, the lubricant is sprayed through the wall of the cylinder bore directly into the piston pin and in others it is delivered through a passage formed in the piston.
    Type: Grant
    Filed: December 27, 1996
    Date of Patent: September 15, 1998
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Takeo Yoshida, Takahiro Suzuld
  • Patent number: 5797311
    Abstract: In a piston/liner arrangement for a reciprocating-piston internal combustion engine, wherein a piston with a skirt is axially movable in the liner, at least one of the piston skirt and the liner includes sections with an open-pore surface structure in which a lubricant with a high affinity to the material having the open-pore surfaces structure is disposed so as to form a lifetime lubrication arrangement.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: August 25, 1998
    Assignee: Daimler Benz AG
    Inventors: Herbert Gasthuber, Bernd-Eric Lubbing, Martin Schulz, Michael Wiesner
  • Patent number: 5772406
    Abstract: A piston-type compressor is provided with a lubricating system for allowing passage of blowby gas from a piston chamber to a crank chamber, which is disposed opposite the piston from the piston chamber. A driving mechanism is disposed in the crank chamber and is coupled to the pistons to move the pistons in a reciprocating motion. The lubricating system may comprise at least one groove formed in an inner surface of at least one of the cylinders to allow passage of a fluid and a lubricating oil, via blowby gas, from the piston chamber to the crank chamber. The fluid may lubricate the moving parts of the driving mechanism.
    Type: Grant
    Filed: March 15, 1995
    Date of Patent: June 30, 1998
    Assignee: Sanden Corporation
    Inventor: Kazuhiko Takai
  • Patent number: 5715911
    Abstract: The system provides a lubricating fluid between a wall which defines a cavity and a member which passes through the cavity. The system includes a passageway for supplying lubricating fluid to the cavity at a velocity and a fluid outlet for introducing the fluid from the passageway to the cavity such that a centrifugal force, corresponding to the velocity of the fluid supplied from the passageway, acts on the fluid flowing from the fluid outlet to cause the fluid to have a laminar flow over the cavity wall.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: February 10, 1998
    Assignee: Reynolds Metals Company
    Inventors: James L. Kunka, Donald R. Haulsee
  • Patent number: 5657833
    Abstract: Self-contained lubricant delivery apparatus for crushing unitized lubricant elements and delivering flowable lubricant from the crushed elements to lubricant requiring portions of a die casting machine. The apparatus includes a cylinder body defining a delivery cylinder closable by an end wall of a movable reaction body and which is opened by an actuating cylinder for insertion of an element of flowable lubricant in a crushable container or formed as a pellet. When the delivery cylinder is closed, a ram in the cylinder crushes the lubricant element against the end wall, forcing the lubricant through a restricted passage and hydraulic conduit to the lubricant requiring portion of the die casting machine.
    Type: Grant
    Filed: December 5, 1995
    Date of Patent: August 19, 1997
    Inventor: Lewis Gene Freeman
  • Patent number: 5638921
    Abstract: Lubricant delivery apparatus for crushing unitized lubricant elements and delivering flowable lubricant from the crushed elements to a die casting machine die cavity. The apparatus includes a delivery cylinder on or in one die which opens with the dies for insertion of an element of flowable lubricant in a crushable container or formed as a pellet. When the dies are closed, a ram in the cylinder crushes the lubricant element against a wall on or in the other die, forcing the lubricant through a restricted passage between the dies and into the die cavity. In alternative embodiments, the delivery cylinder is disposed generally parallel with or perpendicular to the parting line of the pair of dies.
    Type: Grant
    Filed: December 5, 1995
    Date of Patent: June 17, 1997
    Assignee: Chrysler Corporation
    Inventor: Lewis Gene Freeman
  • Patent number: 5588505
    Abstract: An internal mandrel assembly is provided that includes a cleaning attachment for cleaning the interior surface of a tube during a bending operation. The internal mandrel assembly includes a mandrel shank, a plurality of mandrel ball assemblies pivotally coupled to the mandrel shank in a linked configuration, a cleaning attachment pivotally coupled to the last mandrel ball assembly, and a locating rod that positions the mandrel shank within the tube. The internal mandrel assembly also cooperates with a lubricant pump and a lubricant collector. The cleaning attachment includes a wiper for cleaning the interior surface of the tube, a linking member, a first support washer, a second support washer, and a retaining shoulder.
    Type: Grant
    Filed: June 12, 1995
    Date of Patent: December 31, 1996
    Assignee: Calsonic North America, Inc.
    Inventor: Phillip T. Heath
  • Patent number: 5433679
    Abstract: An exercise treadmill is disclosed which includes means for lubricating the endless belt treadmill components. In each embodiment, a lubricant is applied to either the inner surface of the treadmill belt or to the treadmill support deck, thereby reducing the treadmill belt to support deck friction. The applied lubricants can be either solid aerosol or liquid in form, and can be dispersed as a function of treadmill operating time, treadmill belt distance traversed or in response to a measured parameter indicative of belt to deck friction. Additionally, methods are disclosed for lubricating treadmills to reduce belt to deck friction.
    Type: Grant
    Filed: November 5, 1993
    Date of Patent: July 18, 1995
    Assignee: Life Fitness
    Inventors: Eugene B. Szymczak, Vincent C. Adams, Teng-Ywe E. Hong, Kenneth E. Lantz
  • Patent number: 5339724
    Abstract: An improved lubrication arrangement for a piston member arranged to be reciprocatingly movable in a cylinder element of an injection pump for fuel or the like pressure medium, wherein lubricant is supplied under pressure into a lubrication groove arranged in the cylinder element and encircling the piston member. The flow-through of the lubricant is improved by providing the cylinder element with at least one channel extending in the longitudinal direction of the cylinder element, which channel is connected with the lubrication groove for leading lubricant continuously into another position on the mantle surface of the piston member at a distance from the lubrication groove further to be recovered and for possible recirculation.
    Type: Grant
    Filed: February 24, 1993
    Date of Patent: August 23, 1994
    Assignee: Wartsila Diesel International Ltd. Oy
    Inventors: Carl-Erik Rosgren, Ilmo Leino
  • Patent number: 5118263
    Abstract: A single horizontal cylinder, small refrigeration compressor has a lubrication arrangement which includes a recess on the cylinder block above the cylinder bore which collects oil that drains from the lower end of the motor. A supply passage extends downward from said recess and opens into the cylinder bore near its midpoint. The piston has an elongated shallow groove on the interior between head and skirt lands which is connected to the passage during a major portion of the piston stroke to receive oil from the recess. Drain passage means are provided on the piston to allow oil to flow out of the groove at a lesser rate than it is supplied by the supply passage from the recess.
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: June 2, 1992
    Inventor: Jack F. Fritchman
  • Patent number: 4993380
    Abstract: A lubrication mechanism for an engine cylinder includes upper and lower ring troughs on the inside wall of the engine cylinder. The two ring troughs can accommodate oil pipes and ring oil nets. The oil pipes include an inlet pipe and an outlet pipe. Channels and numerous oil pores are defined by the pipes to allow the entrance of lubricating oil into the oil pipes, and seepage from the pores on the oil pipe, through a ring oil net to provide lubrication to the inside wall of the cylinder. The lubricating oil then flows downwardly to the lower ring oil net, through the net and the oil pipe, and into an outlet pipe for discharge.
    Type: Grant
    Filed: January 2, 1990
    Date of Patent: February 19, 1991
    Inventor: Shin-I Hsu
  • Patent number: 4936417
    Abstract: A lubricating system is disclosed which includes a splash cooling of the pistons of an internal-combustion engine by spraying nozzles, the cooling jets of which are aimed at the interior surfaces of the pistons. In order to achieve, after the start of an internal-combustion engine, a rapid buildup of the lubricant pressure, the lubricant supply to the spraying nozzles is interrupted in this initial operating phase. Since, in the starting phase, the lubricating oil supply to the camshafts can be reduced considerably or can even be switched off completely without damaging the bearings, the spraying nozzles and the camshafts receive a common lubricating oil supply which can be controlled centrally by means of control valves. It is advantageous that already existing lubricant ducts may be used, and the spraying nozzles can be constructed in a simple manner without any integrated control valves.
    Type: Grant
    Filed: June 20, 1989
    Date of Patent: June 26, 1990
    Assignee: MTU Friedrichshafen GmbH
    Inventors: Michael Groddeck, Otto Reifenscheid, Gerd-Michael Wolters
  • Patent number: 4895221
    Abstract: A new method and apparatus for quickening in the insertion of a fish tape through a conduit by reducing the occurrence of frictional adhering. The apparatus provided in several embodiments uses flexible lubricant carrying materials having pressure sensitive fluid release characteristics affixed to the free end of a fish tape. The apparatus is saturated with a fluid lubricant prior to being inserted into an opening of the conduit and pushed. As the pressure sensitive material enters a bend in the conduit, pressure is applied to the pressure sensitive material by the long radius wall surface of the bend causing lubricant to be released. The possibility of frictional adhering of anything being pushed through the bend is greatly reduced. The apparatus moves past the well lubricated area and is immediately followed by the body of the fish tape.
    Type: Grant
    Filed: July 20, 1988
    Date of Patent: January 23, 1990
    Inventor: Brian E. Carlson
  • Patent number: 4890534
    Abstract: A die used in a reloading press for reloading spent cartridges. The wall of the die is provided with a reservoir for liquid lubricant. A lubricating pad is provided inside the die mouth and lubricant from the reservoir is channeled to the pad. A primary reloading die feature is provided for the die, e.g. a primer removing rod, and as a cartridge is forced into the die for removal of the primer, it is additionally lubricated ready for resizing.
    Type: Grant
    Filed: March 2, 1989
    Date of Patent: January 2, 1990
    Assignee: Blount, Inc.
    Inventor: Walter W. Bender
  • Patent number: 4815718
    Abstract: A self-lubricating die cylinder assembly is provided containing a cylinder, piston, expansion reservoir and working chamber. A lubricating oil recirculation means is provided to transport oil between the working chamber and the expansion reservoir during each of the piston strokes. A flow restrictor is provided to create a pressure differential between the two chambers during movement of the piston thus creating a jet mixture of compressible working fluid and lubricating oil spraying onto the walls of the cylinder.
    Type: Grant
    Filed: May 11, 1987
    Date of Patent: March 28, 1989
    Assignee: Teledyne Industries, Inc.
    Inventor: Paul M. Kadis
  • Patent number: 4735287
    Abstract: A fuel-injection pump with a rotational speed governor for an internal combustion engine which for purposes of lubrication is connected to the lubricating oil circulatory system of the internal combustion engine. The lubricating oil which is thereby removed from the lubricating oil circulation is conducted by way of a pressure oil line and an inlet bore in the pump housing to a plunger cylinder of the injection pump and is controlled by the plunger sliding within the plunger cylinder by way of an aperture into a discharge bore terminating in the governor housing. From the governor housing, the lubricating oil flows over into the cam shaft space and is returned from the same by way of a return opening to the lubricating oil circulation of the internal combustion engine.
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: April 5, 1988
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventor: Helmut Pichler
  • Patent number: 4691902
    Abstract: A self-lubricating die cylinder assembly is provided containing a cylinder, piston, expansion reservoir and working chamber. A lubricating oil recirculation means is provided to transport oil between the working chamber and the expansion reservoir during each of the piston strokes. A flow restrictor is provided to create a pressure differential between the two chambers during movement of the piston thus creating a jet mixture of compressible working fluid and lubricating oil spraying onto the walls of the cylinder.
    Type: Grant
    Filed: April 15, 1985
    Date of Patent: September 8, 1987
    Assignee: Teledyne Industries, Inc.
    Inventor: Paul M. Kadis
  • Patent number: 4688775
    Abstract: A press cushion assembly includes a variable volume chamber which is expanded during operation of the press to an open condition and is contracted during operation of the press to a closed condition. During expansion of the variable volume chamber, a flow of lubricating liquid is conducted to the variable volume chamber from a reservoir. At the same time, a flow of gas is also conducted from the reservoir to the variable volume chamber. Upon closing of the press and contraction of the variable volume chamber, a flow of lubricating fluid and gas is conducted from the variable volume chamber back to the reservoir. The cushion assembly may include a manifold plate in which a plurality of piston and cylinder assemblies are mounted. A reservoir disposed in the manifold plate is connected in fluid communication with the piston and cylinder assemblies by a plurality of passages. Check valves may be provided in the passages so that the lubricating fluid can flow in only one direction.
    Type: Grant
    Filed: February 18, 1986
    Date of Patent: August 25, 1987
    Assignee: Teledyne Industries, Inc.
    Inventor: Paul M. Kadis
  • Patent number: 4651769
    Abstract: A water valve with a hollow piston axially reciprocable in a cylindrical bore of a surrounding sleeve is provided, for long-term lubrication of the piston, with grease chambers formed as inwardly open peripheral recesses on the inner sleeve surfaces at opposite extremities thereof. The valve is preferably of the single-handle mixing type, the piston being rotatable within the sleeve for selectively connecting a cold-water inlet and/or a hot-water inlet with a common outlet; the region of water flow between these ports is isolated by sealing rings from the two grease chambers.
    Type: Grant
    Filed: March 12, 1986
    Date of Patent: March 24, 1987
    Assignee: Friedrich Grohe Armaturenfabrik GmbH & Co.
    Inventor: Fritz Wagner
  • Patent number: 4557351
    Abstract: An improved lubrication system for lubricating the moving parts of a walking beam compressor used in compressing low pressure natural gas. The compressor is mounted on a walking beam oil pump. The lubrication system introduces oil through the length of a piston shaft and through a plurality of oil cooling chambers in the interior of a piston. The oil is then forced out through piston outlet ports disposed between the piston's compression rings and wear rings for providing an improved lubricant seal and extending the life of rings.
    Type: Grant
    Filed: July 25, 1984
    Date of Patent: December 10, 1985
    Assignee: Denice C. Reich Inc.
    Inventor: Russell D. Volk
  • Patent number: 4550647
    Abstract: The piston pin for a piston of an internal combustion engine is provided with a certain number of passages, each opening into the annular groove of the bearing bushing of the connecting-rod small end and into either of the annular grooves of the pin bearings. The passages are provided in a peripheral portion of the piston pin so to avoid a central portion of the pin, in which a concentration of metallic impurities is maximum.
    Type: Grant
    Filed: December 7, 1984
    Date of Patent: November 5, 1985
    Assignee: Societe d'Etudes de Machines Thermiques (SEMT)
    Inventor: Jean-Paul Coulin
  • Patent number: 4550805
    Abstract: An improved lubrication system for the hydrostatic lubrication of an upper bearing and cylinder wall and piston of a walking beam compressor. The lubrication system introduces oil under pressure, around an upper bearing used for supporting a piston shaft connected to the piston of the walking beam compressor. The system having a pressure relief valve for relieving the pressure in the bearing and discharging excess oil into the top of the compressor and lubricating the cylinder wall and the sides of the piston.
    Type: Grant
    Filed: November 30, 1984
    Date of Patent: November 5, 1985
    Inventor: Gregory L. Zimmerman
  • Patent number: 4499968
    Abstract: Lubricator for bores in members, the lubricator being particularly useful for the lubrication of bores of small diameter with a lubricant of high viscosity. The lubricator has an applicator in the form of an elongated composite plunger having an outer tubular part and inner rod-like part disposed within the tubular part and reciprocable relative thereto. The inner part has an enlarged head thereon disposed axially outwardly of the confronting outer end of the outer tubular part, the head and the confronting end of the outer tubular part in the initial stage of operation of the lubricator defining a toroidal gap which receives and retains lubricant which it picks up as the outer end of the composite plunger travels through a reservoir for lubricant and thence into the bore of the member.
    Type: Grant
    Filed: September 16, 1981
    Date of Patent: February 19, 1985
    Assignee: Halkey-Roberts Corporation
    Inventor: Harry L. Zimmerly
  • Patent number: 4389922
    Abstract: A lubricating valve for a moveable piston, the valve supplying lubricant at low pressure and being reversible automatically in response to a reversal of the higher pressure which drives the piston.
    Type: Grant
    Filed: March 20, 1981
    Date of Patent: June 28, 1983
    Assignee: Her Majesty the Queen in right of Canada as represented by the Minister of Defence
    Inventors: Ronald Tatters, John E. Dolman, Donald R. Howell, deceased
  • Patent number: 4342448
    Abstract: A gas-operated piston cylinder assembly arranged between upper and lower die members of a press. The lower end of the cylinder communicates with a source of high pressure gas and also communicates through a passageway with the upper rod end of the cylinder which is sealed from the surrounding atmosphere. The piston rod has a cross sectional area only slightly smaller than the piston. The passageway between the lower and the upper ends of the cylinder contains a lubricant impregnated member and a by-pass controlled by a check valve which allows gas flowing from the rod end of the cylinder to the lower end thereof to bypass the lubricant impregnated member.
    Type: Grant
    Filed: April 4, 1980
    Date of Patent: August 3, 1982
    Inventor: Bernard J. Wallis
  • Patent number: 4279517
    Abstract: A mixing apparatus for mixing components that interact chemically, preferably polyurethane-forming components, the apparatus including a control plunger disposed within a housing and movable along a mixing chamber between opposing inlet and return ports, the control plunger having along its wall surface return grooves for connecting the inlet ports to the return ports when the plunger is in a position blocking communication between the inlet ports and the mixing chamber wherein a wall surface portion of the control plunger which in the closing position of the plunger is disposed intermediate the return ports is provided with discrete recesses which mutually overlap in the direction of movement of the control plunger.
    Type: Grant
    Filed: August 20, 1979
    Date of Patent: July 21, 1981
    Assignee: Elastogran Maschinenbau GmbH & Co.
    Inventors: Josef Wallner, Lothar Metzinger
  • Patent number: 4275096
    Abstract: A method and apparatus for dispensing a fluid in a conduit and more particularly for dispensing lubricant within an electrical conduit for facilitating pulling electrical cables through the conduit. The apparatus is in the form of a cartridge disposed in the conduit at an end thereof. The cartridge is made of a pair of sealed and separable members. One of the members is a flanged sleeve forming the casing of the cartridge, in which is coaxially disposed the other member forming a tubular support member or carrier for a mass of resilient and absorbent lubricant impregnated porous material compressibly packed between the inner surface of the sleeve casing and the carrier. A cable pulling strand, or fishtape, is passed through the tubular carrier, and the cables to be pulled through the conduit are attached to the end of the fishtape. A plug inserted in the open end of the tubular carrier prevents the fishtape and the cables attached thereto from being pulled back through the carrier.
    Type: Grant
    Filed: January 15, 1979
    Date of Patent: June 23, 1981
    Assignee: Taylor Industries, Inc.
    Inventor: Philip W. Taylor
  • Patent number: 4186654
    Abstract: Improved lubrication system for multiplex pumps including lubrication reservoir means, pump means, filtration means and valve means.
    Type: Grant
    Filed: May 18, 1978
    Date of Patent: February 5, 1980
    Assignee: Halliburton Company
    Inventor: David G. Scott
  • Patent number: 4137015
    Abstract: A system for recovering the energy from atmospheric wind wherein a windmill operates a compressor for compressing air which is stored in one or more tanks. The compressed air is used to drive a prime mover coupled by gear means to an electrical generator or other work-producing apparatus. The prime mover is operated by hydraulic fluid responsive to the application of the compressed air to fluid tanks by valve means responsive to the operation of the prime mover. The compressor has a unique means for lubricating the same. Alternatively, the prime mover can be operated by conventional water pressure during periods of little or no wind.
    Type: Grant
    Filed: May 4, 1977
    Date of Patent: January 30, 1979
    Inventor: William C. Grossman
  • Patent number: 4044859
    Abstract: In a fluid spring arrangement for a metal forming die assembly of the gas-operated, piston-cylinder type, the surfaces of the piston and cylinder which are in sliding contact are lubricated by lubricant entrained in the pressurized gas directed into the working chamber of the cylinder. The lubricant is contained in an apertured cartridge within the cylinder through which the gas is constrained to flow. A valve plate cooperates with an apertured wall of the cartridge to entrain lubricant in the gas when the flow of gas is into the cylinder and prevent the entrainment of lubricant when the flow of gas is out of the working chamber of the cylinder.
    Type: Grant
    Filed: September 13, 1976
    Date of Patent: August 30, 1977
    Inventor: Bernard J. Wallis