Patents Assigned to Poly Farms, Inc.
  • Patent number: 4892514
    Abstract: A method for folding a tube into radially superimposed accordian pleats in which the tube is first placed in tubular form and clamped against radial and longitudinal movement at circumferentially spaced zones adjacent an open end of the tube. A first annular band of the tube is then forced radially outwardly and longitudinally to a position radially outwardly of the clamped zones, and is connected by a bight to the remainder of the tube, a part of which forms a second annular band lying radially outwardly from the first band. The two annular bands and the part of the tube containing the spaced zones are then clamped against radial and longitudinal movement, and a series of additional pairs of bands are then sequentially formed radially outwardly from the second band in the same way that said first and second bands are formed, with periodic clamping of all of said bands against radial and longitudinal movement occurring after each additional pair of bands is formed.
    Type: Grant
    Filed: October 3, 1988
    Date of Patent: January 9, 1990
    Assignees: Rand Farm Systems Inc., Poly Farm, Inc.
    Inventor: William C. Johnson
  • Patent number: 4775359
    Abstract: A method for folding a tube into radially superimposed accordian pleats in which the tube is first placed in tubular form and clamped against radial and longitudinal movement at circumferentially spaced zones adjacent an open end of the tube. A first annular band of the tube is then forced radially outwardly and longitudinally to a position radially outwardly of the clamped zones, and is connected by a bight to the remainder of the tube, a part of which forms a second annular band lying radially outwardly from the first band. The two annular bands and the part of the tube containing the spaced zones are then clamped against radial and longitudinal movement, and a series of additional pairs of bands are then sequentially formed radially outwardly from the second band in the same way that said first and second bands are formed, with periodic clamping of all of said bands against radial and longitudinal movement occurring after each additional pair of bands is formed.
    Type: Grant
    Filed: January 31, 1985
    Date of Patent: October 4, 1988
    Assignees: Rand Farm Systems Inc., Poly Farm, Inc.
    Inventor: William C. Johnson
  • Patent number: 4653553
    Abstract: An agricultural bag loading machine having an improved mechanical assembly for automatically effecting controlled, continuous compression and delivery of compacted animal feed material into a flexible agricultural storage bag via a compression and delivery chamber. The compressed, delivered feed material has a uniform, air tight side wall density throughout the bag-delivered, sausage shaped feed material mass. The loading machine has additional features, including a pneumatic bladder assembly for changing the forming chamber dimensions and configuration, an improved agricultural bag attachment and continuous feeding mechanism which eliminates bag fold-over and wrinkling problems during filling, and an integral forming chamber cleanout mechanism which enables clearing and cleaning of the forming chamber at the end of an agricultural bag loading operation.
    Type: Grant
    Filed: September 24, 1986
    Date of Patent: March 31, 1987
    Assignees: Poly Farms, Inc., Rand Farms Systems, Inc.
    Inventors: Larry B. Cox, William C. Johnson, Roland W. Marpoe
  • Patent number: RE33491
    Abstract: An agricultural bag loading machine having an improved mechanical assembly for automatically effecting controlled, continuous compression and delivery of compacted animal feed material into a flexible agricultural storage bag via a compression and delivery chamber. The compressed, delivered feed material has a uniform, air tight side wall density throughout the bag-delivered, sausage shaped feed material mass. The loading machine has additional features, including a pneumatic bladder assembly for changing the forming chamber dimensions and configuration, an improved agricultural bag attachment and continuous feeding mechanism which eliminates bag fold-over and wrinkling problems during filling, and an integral forming chamber cleanout mechanism which enables clearing and cleaning of the forming chamber at the end of an agricultural bag loading operation.
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: December 18, 1990
    Assignees: Rand Farm Systems Inc., Poly Farms, Inc.
    Inventors: William C. Johnson, Ronald W. Marpoe, Larry B. Cox