Patents Assigned to Unex Conveying Systems, Inc.
  • Patent number: 5951228
    Abstract: The present invention features a universal flow rack system that can be affixed to almost any supporting frame or pallet rack. The flow rack system of the invention features a flow track that is "snap-locked" into place upon the storage frame in an almost instantaneous fashion. This allows for quick assembly, adjustment and removal of the flow track at any time. The flow rack system is positionable about the storage frame or pallet rack in any orthogonal position (X and Y axes) about the horizontal plane of the frame, thus allowing for overhangs and unique positioning thereupon.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: September 14, 1999
    Assignee: Unex Conveying Systems, Inc.
    Inventors: Harold Pfeiffer, Frank J. Neuwirth
  • Patent number: 4721203
    Abstract: A powered accumulating conveyor apparaus is disclosed which may be pneumatically controlled to define a plurality of conveying stations therein. Each of the conveying stations or zones being separately operable to be in the conveying mode responsive to the simultaneous receiving of a pilot signal from the immediate downstream conveyor therefrom and to receiving a loaded signal. A drive configuration is included having a drive belt selectively engageable with respect to driven rollers separated from one another by idling rollers. The drive belt is maintained in contact with the driven rollers and can be removed from contact to halt driving thereof by rotation of a cam-like brake member in such a manner as to force an abutment edge in contact with the driven rollers to cease movement thereof and to remove contact of the drive belt therewith.
    Type: Grant
    Filed: May 9, 1986
    Date of Patent: January 26, 1988
    Assignee: Unex Conveying Systems, Inc.
    Inventors: Thomas Kimball, Harold Pfeiffer
  • Patent number: 4108304
    Abstract: This invention discloses an accumulation conveyor of the powered roller type, having a power-driven belt passing through a plurality of independent operating zones arranged in tandem along the length of the conveyor. The belt is held in contact with the driven rollers by resiliently-biased pressure rollers, the pressure rollers exerting at least sufficient pressure to maintain the belt in contact with the driven rollers. In each zone, additional pressure is applied to the pressure rollers to increase or decrease the pressure of the belt against the driven rollers. This pressure is applied by spring-biased roller cams actuated by linkages responsive to load-sensing means in a downstream zone and whereby the kinetic energy generated by the moving load is used to actuate the cams.
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: August 22, 1978
    Assignee: Unex Conveying Systems, Inc.
    Inventors: Robert J. McKnight, Frank J. Neuwirth, Robert W. Gotham
  • Patent number: RE38517
    Abstract: The present invention features a universal, low profile, expandable flow track system that can be drop-load mounted to almost any supporting frame or pallet rack. The flow track system of the invention features a flow track that mounts flush with its end supports, and is infinitely adjustable along both the horizontal axis and depth axis of the storage frame. The flow track is quickly assembled to, adjusted upon, and removed from, the storage frame.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: May 18, 2004
    Assignee: Unex Conveying Systems Inc.
    Inventors: Harold Pfeiffer, Frank J. Neuwirth
  • Patent number: D423748
    Type: Grant
    Filed: December 15, 1997
    Date of Patent: April 25, 2000
    Assignee: Unex Conveying Systems, Inc.
    Inventors: Frank J. Neuwirth, Harold Pfeiffer