Spring Return Patents (Class 184/42)
  • Patent number: 9951651
    Abstract: A bearing, such as a rolling bearing, is mounted on a support mobile in translation and includes a lubrication mechanism. The lubrication mechanism includes at least one pipe delivering a lubricant, linked to a lubricant supply source, and at least partially engaging in the support mobile in translation to deliver the lubricant from the mobile support along an internal channel to the bearing, passing through an inner ring of the bearing.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: April 24, 2018
    Assignee: SNECMA
    Inventors: Caroline Frantz, Dominik Igel, Nadege Hugon, Augustin Curlier
  • Patent number: 6494347
    Abstract: The present invention relates to a grease gun having an automatic continuous feeding device, including a gun body, a piston chamber, a piston, a spring, a barrel chamber, a plunger, a container, a switch valve, and a trigger. Thus, the piston may be moved reciprocally and automatically by pressing the trigger successively, so that the grease in the container may be ejected outward continuously without having to compress and loosen the trigger repeatedly, thereby facilitating the user operating the grease gun.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: December 17, 2002
    Inventor: Kuo-Chung Yeh
  • Patent number: 5638920
    Abstract: An air tool lubricator which includes a body having an inlet and an outlet for a gas, a top bore, and a lubricant chamber. The first end of a lubricant conduit is coupled in fluid-flowing relation to the lubricant chamber, and the second end of the lubricant conduit is disposed in the outlet of the body and is capable of being coupled to a lubricant line. The lubricant line carries lubricant from the air tool lubricator to an air tool. Located within the lubricant chamber and capable of delivering a predetermined amount of lubricant into the lubricant conduit is a lubricant metering device or injector. Mounted on the body is a reservoir which is capable of holding a liquid lubricant, and which has a priming conduit through which lubricant may be delivered to the bore of the body. A priming pump is mounted on the reservoir and is capable of delivering a predetermined amount of lubricant from the reservoir to the lubricant chamber. The priming pump is used to fill the lubricant line with lubricant.
    Type: Grant
    Filed: August 14, 1995
    Date of Patent: June 17, 1997
    Assignee: Oil-Rite Corporation
    Inventor: Donald G. Gruett
  • Patent number: 5246088
    Abstract: An automatic lubricating device for a cutting head of a cutting machine. The lubricating device is assembled within the cutting head and includes a pressure cylinder for forcing lubricating oil through a passage to a sump from which the lubricating oil is forced through a jet onto the cutter device mechanism. The lubricating device can be operated just prior to cutting or just after a cutting procedure with the cutting blade in an up or a down position.
    Type: Grant
    Filed: August 28, 1992
    Date of Patent: September 21, 1993
    Assignee: Shima Seiki Mfg., Ltd.
    Inventors: Taichi Imai, Kenji Ikoma
  • Patent number: 5076396
    Abstract: A hydraulic master unit is mounted on the rail and has a master cylinder in which is mounted a plunger to be contacted by the wheel of the train. A master cylinder piston is driven against the compression of a cylinder spring inside the master cylinder body in which there is confined hydraulic fluid leading through a hydraulic line, through a hydraulic bulkhead assembly fitting and thence to a grease pump slave unit comprising a hydraulic grease pump piston operating against a grease pump spring inside of the grease pump housing in which there is a chamber confining the hydraulic fluid with the piston for operation to pump grease through the grease discharge and to draw grease from the grease container back into the slave cylinder and through a grease pump inlet valve against a grease pump inlet valve spring and so on in repetition in response to the contact of the master cylinder plunger by the train wheel.
    Type: Grant
    Filed: August 10, 1990
    Date of Patent: December 31, 1991
    Inventor: John P. Foote
  • Patent number: 5067591
    Abstract: A combined pneumatic and manual grease dispensing system comprises a manually operated fluid pump that draws lubricant from a source and delivers the lubricant at a first fluid pressure, and a pneumatically operated lubricant dispensing gun that receives the lubricant supplied by the manual pump at the first pressure and receives a supply of compressed air from a compressed air source, and dispenses the lubricant received at a second pressure substantially increased from the first pressure at which the lubricant is supplied to the gun.
    Type: Grant
    Filed: November 9, 1989
    Date of Patent: November 26, 1991
    Assignee: Pentair, Incorporated
    Inventor: Kenneth L. Fehlig
  • Patent number: 5000291
    Abstract: A lubrication nozzle has a body with a piston cavity formed therein. One end of the cavity is closed by an adjusting cap attached to a spring biased piston. The opposite end of the piston cavity has an orifice closed by a conical tip on the piston. Lubricating fluid and compressed air are supplied to separate ports in the body. The compressed air actuates the piston to open the orifice and permit the lubricating fluid to flow through a nozzle cap to an area to be lubricated. The tip and the seals on the piston are formed of an elastomeric material and easily can be replaced by removing the adjusting cap.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: March 19, 1991
    Assignee: Lubrimation, Inc.
    Inventor: Michael D. Forster
  • Patent number: 4955953
    Abstract: A lubricating device for lubricating the flange of the wheel of a railroad car has a lubricant inlet port, a lubricant outlet port, and a piston assembly for causing a shot of lubricant to be delivered from the lubricant inlet port to the the lubricant outlet port. The piston assembly is pneumatically driven by means of compressed air which is supplied to the device at an air inlet port. The lubricating device includes a removable piston sleeve which allows for replacement of the sleeve when it is subject to wear.
    Type: Grant
    Filed: November 15, 1988
    Date of Patent: September 11, 1990
    Assignee: KLS International Corporation
    Inventor: John P. Kayser
  • Patent number: 4598796
    Abstract: The lubricator of the invention is a one-shot or non-continuous type. It has a first reservoir within which to receive a charge of lubricant, and a second reservoir from which to expel a charge of lubricant, and a piston slidable therebetween for moving lubricant from the first reservoir to the second reservoir, and also for discharging lubricant from the second reservoir and externally of the lubricator. Upon the piston moving, slidably, in a first direction it creates a partial vacuum in the first reservoir and, consequently, ingests lubricant into the first reservoir. Then, as the piston moves in the second, opposite direction, it diminishes the volume of the first reservoir, and displaces lubricant therefrom through a channel formed centrally in the piston. The lubricant conducted through the channel is deposited in the second reservoir, and is expelled therefrom, by the piston, when next the piston moves in the first, slidable direction.
    Type: Grant
    Filed: February 22, 1985
    Date of Patent: July 8, 1986
    Assignee: Ingersoll-Rand Company
    Inventor: Robert E. Barrows
  • Patent number: 4537284
    Abstract: The progressive distributor contains a control piston which is slidable in a cylinder. The piston contains a main channel and a plurality of radially disposed distribution channels for distributing lubricant. The cylinder has feed channels which are aligned with feed channels in a housing of a machine part to be lubricated and are arranged in offset relation to the distribution channels of the piston. The respective distribution channels and feed channels are arranged so that during movement of the piston in the cylinder, the various feed channels are progressively supplied with lubricant.
    Type: Grant
    Filed: June 8, 1982
    Date of Patent: August 27, 1985
    Assignee: Sulzer Brothers Limited
    Inventors: Otto Breisinger, Herbert Burgbacher
  • Patent number: 4450938
    Abstract: An air line lubricator for air motors and the like which is self priming and provides a controlled, continuous supply of oil for a limited duration once the air line is pressurized. The lubricator utilizes a unique check seal in combination with a bevelled and stepped piston. The construction further allows the use of a single ball check and deposits the lubricating oil directly into the air stream apart from the air line surface.
    Type: Grant
    Filed: December 20, 1982
    Date of Patent: May 29, 1984
    Assignee: Ingersoll-Rand Company
    Inventors: Henry A. Davenport, Robert E. Barrows