Patents Assigned to Rexnord Inc.
  • Chain coupling elastomer cover
    Patent number: 4395245
    Abstract: A semi-rigid elastomeric cover for a roller chain coupling which comprises a generally cylindrical center portion having its radial interior contoured to relatively tightly fit the contour of the roller chain and two opposed axially extending flanges connected to the center portion each flange terminating in a circular beaded portion dimensioned for a compression fit with the hub of the coupling.
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: July 26, 1983
    Assignee: Rexnord Inc.
    Inventor: Dennis L. Carlson
  • Wear resistant rotor slots for vane-type pumps or motors
    Patent number: 4392795
    Abstract: A rotor, for a vane-type fluid pump or motor, having upper and lower vane contact edges formed in each slot thereof is disclosed. The upper and lower vane contact edges substantially eliminate wear of the slots by the vanes reciprocating therein, thereby enabling pumps or motors employing the rotor to operate with low viscosity liquids for commercially useful periods of time.
    Type: Grant
    Filed: January 30, 1981
    Date of Patent: July 12, 1983
    Assignee: Rexnord Inc.
    Inventor: Larry C. Smith
  • Article carrying attachment for conveyor chain
    Patent number: 4388990
    Abstract: A conveyor chain of the type using extended chain connecting pins to carry articles has short extended connecting pins to which longer conveying pins are attached with a cylindrical coupling bushing. The pin ends are held in the bushing with a light press fit and the bushing is constructed to break away from the extended chain pins if the conveying pins or articles thereon encounter an obstruction in the path of conveyor travel.
    Type: Grant
    Filed: April 6, 1977
    Date of Patent: June 21, 1983
    Assignee: Rexnord Inc.
    Inventor: Anthony J. Michalik
  • Apparatus and method for autogenous grinding by countercurrent flow of two material streams
    Patent number: 4384684
    Abstract: An apparatus for the grinding of hard materials having a conveyor for forming a thin layer of material and moving the layer upward at an angle, and then causing the material in the upper region of the conveyor to tumble back down and along the surface of the upward moving layer, to generate a fine abraded product from the rubbing surfaces of the material.
    Type: Grant
    Filed: October 27, 1980
    Date of Patent: May 24, 1983
    Assignee: Rexnord Inc.
    Inventor: Vijia K. Karra
  • Accumulating conveyor with pneumatic control system
    Patent number: 4383605
    Abstract: A control system for an accumulating conveyor having a plurality of zones wherein each zone has a pneumatic logic module that includes a relay limit valve and one or more OR valves. The output of one OR valve is connected to air actuators which affect driving engagement and disengagement of drive rollers with the load carrying rollers of a zone of the conveyor. A pilot operated relay valve is connected to the discharge zone of the conveyor and employed to release an article thereon. The control system can easily be modified to provide accumulation in either direction, as well as single, sequential or train release in both directions.
    Type: Grant
    Filed: April 2, 1981
    Date of Patent: May 17, 1983
    Assignee: Rexnord Inc.
    Inventor: Warren J. Harwick
  • Take-apart seal
    Patent number: 4375292
    Abstract: A face seal assembly for preventing leakage of fluid around a rotating shaft of a machine, including a housing in the form of an annular U-shaped trough open at one end and closed at the other end. An annular seal element fits into the housing and is biased outwardly by a spring toward the open end into engagement with a mating ring. The seal element is held in the housing during assembly or servicing of the machine by two spring latch mechanisms which each include a formed spring fastened in a channel. The two spring mechanisms are welded to the inner face of the outer wall of the housing at diametrically opposed positions. The annular seal element has a notch in its outer circumferential wall on opposed diametrical sides to enable the seal element to fit snugly with the housing, with the channels received within the notches.
    Type: Grant
    Filed: April 23, 1982
    Date of Patent: March 1, 1983
    Assignee: Rexnord Inc.
    Inventor: Roger K. Ericson
  • Accumulating conveyor
    Patent number: 4372441
    Abstract: Disclosed are powered roller, accumulating conveyors incorporating improved friction wheel drive means for transmitting driving forces to any given zone of the conveyor, independently of all other zones, from a single powered endless belt in a first embodiment and from a powered chain in second, third and fourth embodiments.
    Type: Grant
    Filed: March 16, 1981
    Date of Patent: February 8, 1983
    Assignee: Rexnord Inc.
    Inventor: Robert Krammer, deceased
  • Positively driven steering member for conveying apparatus
    Patent number: 4372435
    Abstract: A device adapted for use as a positively driven steering member in a conveying apparatus, having a wheel with a spherically curved inner surface, a hub with a spherically curved outer surface which fits inside of the wheel, and a coupling which secures the wheel to the hub, permitting the axis of the wheel to be rotated relative to the axis of the hub in any direction while restraining relative motion between the wheel and hub about the axis of the hub. This arrangement provides that, when the hub is driven by a shaft passing through its axis, it drives the wheel, regardless of the angle between the hub and wheel.
    Type: Grant
    Filed: October 27, 1980
    Date of Patent: February 8, 1983
    Assignee: Rexnord Inc.
    Inventor: Bernard G. Bradbury
  • Emergency brake control for hoists
    Patent number: 4359208
    Abstract: An emergency brake control system for hoists including means for generating a first electrical signal indicating the direction of travel of a conveyance, means for generating a second signal indicating the presence or absence of an emergency situation and control means responsive to the first and second signals for immediately applying the emergency brake when the conveyance is descending and an emergency exists and delaying application of the emergency brake only after the conveyance has come to a complete stop when the conveyance is ascending and an emergency exists. Overriding safety features may also be employed to provide immediate application of the emergency brake regardless of the direction of travel of the conveyance of certain emergencies, such as over travel of the conveyance, exist.
    Type: Grant
    Filed: May 30, 1980
    Date of Patent: November 16, 1982
    Assignee: Rexnord Inc.
    Inventors: Alvin Kelm, Edward S. Freiwald
  • Polymeric chain link with integral telescoping barrel
    Patent number: 4355502
    Abstract: A polymeric chain link including two sidebars and a barrel connecting the sidebars. The barrel is comprised of a male barrel portion and a female barrel portion, each barrel portion being an integral extension of one of the sidebars. The male barrel portion fits inside the female barrel portion, and the inner mating surface of the female barrel portion cooperates with the outer mating surface of the male barrel portion to couple the two portions, mechanically locking them together.
    Type: Grant
    Filed: December 24, 1980
    Date of Patent: October 26, 1982
    Assignee: Rexnord Inc.
    Inventor: Jerome F. Sheldon
  • Piloted flexible coupling
    Patent number: 4353704
    Abstract: A piloted flexible torque transmission coupling including circumferentially spaced, axially aligned holes in the center member, pilot ring and hub of the coupling for ease of assembly and disassembly of the coupling. The same bolts are used to both assemble the coupling for normal operation and disassemble the coupling.
    Type: Grant
    Filed: March 28, 1980
    Date of Patent: October 12, 1982
    Assignee: Rexnord Inc.
    Inventor: Dennis J. Corey
  • Conveyor chain
    Patent number: 4353459
    Abstract: An endless conveyor chain is a sequential assembly of block links formed of a polymeric material, interconnected by thin fleixble links of undulated shape, formed of either metallic or polymeric material, which are easily capable of flexing through their thicknesses, making it possible for the chain to negotiate lateral turns in the conveying run by producing edgewise flexure in the links. Large bearing stresses, which normally result in applications where chain joint lateral articulation occurs in nonlinear chain travel, are minimized or eliminated since the requisite lateral movement is allowed by flexure in the thin links away from the chain joints.
    Type: Grant
    Filed: February 28, 1980
    Date of Patent: October 12, 1982
    Assignee: Rexnord Inc.
    Inventor: Victor D. Petershack
  • Convertible pump servo-valve control
    Patent number: 4348159
    Abstract: A vane-type variable displacement pump is controlled by a first stage servo-valve. The servo-valve is controlled by a second stage which may optionally include devices which provide any of several desired control effects.
    Type: Grant
    Filed: January 7, 1980
    Date of Patent: September 7, 1982
    Assignee: Rexnord Inc.
    Inventor: John L. Acheson
  • Adjustable retention latch assembly
    Patent number: 4341407
    Abstract: A latch assembly for aligning the holes in a panel and a frame such as those used in aircraft doors. The assembly includes a hook for engagement with a striker to retain the panel and a sliding hook mechanism to align the holes. The sliding hook mechanism is operated by a camming means to urge the hook toward or away from the striker to bring the holes into alignment thereby preventing damage to the fastener and freeing both hands of a workman to secure or release the fasteners.
    Type: Grant
    Filed: May 9, 1980
    Date of Patent: July 27, 1982
    Assignee: Rexnord Inc.
    Inventor: Frank A. Zankich
  • Hydraulic pressure biased linear motion thrust block for hydraulic pumps and motors
    Patent number: 4340338
    Abstract: The casing of a pump defines a threaded hole into which is inserted an outer block for reacting radially directed forces transmitted by a second inner block from a movable, pressurized cam ring surrounding the pump rotor. The blocks have mutually parallel mating surfaces arranged generally tangential to the ring. Onto one of such surfaces is bonded an anti-friction bearing material, such as a woven fabric or metal, to facilitate sliding action between them. The eccentric position of the cam ring is partly established by the action of system pressure acting on control pistons while the guided motion of the inner block further positions the ring to optimal adjustments made to the outer block.
    Type: Grant
    Filed: June 13, 1980
    Date of Patent: July 20, 1982
    Assignee: Rexnord Inc.
    Inventor: Gregory D. Lemke
  • Frame structure for a press assembly
    Patent number: 4325298
    Abstract: A press assembly having an improved frame including a crown, bed, cylinder, and ram assembly tied together by tie rods and compression members in which a platen assembly secured to the ram assembly guides directly on the inward facing surface portions of the tie rods. Associated compression members juxtaposed around the outward facing surface portions of the tie rods provide stability to the whole press assembly and form part of an enclosure about the press assembly. Washers having outwardly tapering transverse portions are mounted on each tie rod to prevent bending of the tie rods at their ends.
    Type: Grant
    Filed: December 19, 1980
    Date of Patent: April 20, 1982
    Assignee: Rexnord Inc.
    Inventor: Philip T. Delmer
  • Speed reducer apparatus
    Patent number: D269014
    Type: Grant
    Filed: September 29, 1980
    Date of Patent: May 17, 1983
    Assignee: Rexnord Inc.
    Inventors: Donald Tumidajewicz, Fritz A. Callies
  • Corner disc for chain conveyors
    Patent number: D269217
    Type: Grant
    Filed: October 27, 1980
    Date of Patent: May 31, 1983
    Assignee: Rexnord Inc.
    Inventors: Wasyly G. Hodlewsky, Roger H. Schroeder
  • Conveyor module
    Patent number: D270201
    Type: Grant
    Filed: September 18, 1980
    Date of Patent: August 16, 1983
    Assignee: Rexnord Inc.
    Inventors: William G. Hodlewsky, Jack E. Harris, Roger H. Schroeder
  • Conveyor module
    Patent number: D270202
    Type: Grant
    Filed: September 18, 1980
    Date of Patent: August 16, 1983
    Assignee: Rexnord Inc.
    Inventors: William G. Hodlewsky, Jack E. Harris, Roger H. Schroeder