Patents Assigned to Shakespeare
  • Patent number: 6171446
    Abstract: A press felt for use in the press section of a papermaking machine includes a base fabric and at least one layer of an assembly of fibers, preferably forming a carded web or batt, the assembly of fibers containing a plurality of fibers having a deep grooved configuration. The deep-grooved fibers of the press felt provide improved dewatering properties to the press felt as compared to conventional round monofilaments of the same denier currently employed as the batt in press felts used in the press sections of papermaking machines. A method for at least partially dewatering a sheet of paper fibers within the press section of a papermaking machine includes positioning the sheet of paper fibers on the press felt described herein, transporting the sheet of paper fibers through the press section, and pressing the sheet to at least partially remove the water therefrom.
    Type: Grant
    Filed: October 19, 1998
    Date of Patent: January 9, 2001
    Assignee: Shakespeare Company
    Inventor: Michelle Diaz-Kotti
  • Patent number: 5985450
    Abstract: Polymeric monofilaments having 3 to 12 circumferential striations exhibit excellent performance when used in woven papermaking belts.
    Type: Grant
    Filed: September 22, 1993
    Date of Patent: November 16, 1999
    Assignee: Shakespeare
    Inventor: Robert Allen Keller
  • Patent number: 5982332
    Abstract: An antenna (100) operable over a predetermined broad band and connected to a transmission line (102) includes a tip radiator (106) having a series capacitance (129) and a base radiator/choke (104) operatively connected to the tip radiator for changing feed point reactance values to values that provide a desired bandwidth to minimize the antenna's voltage standing wave ratio (VSWR) over frequencies in the predetermined broad band. The antenna also includes a choke assembly (108) operatively connected to the transmission line for suppressing current below a predetermined point of the antenna to maintain the desired bandwidth and VSWR.
    Type: Grant
    Filed: October 19, 1998
    Date of Patent: November 9, 1999
    Assignee: Shakespeare Company
    Inventor: John R. Lewis, Jr.
  • Patent number: 5941485
    Abstract: A step mounting assembly adapted for demountably securing a removable step member to a hollow utility pole. The step mounting assembly utilizes a backing plate having an obverse and a reverse face. An aperture penetrates the backing plate to receive the shank portion of a mounting bolt with the head thereof disposed in opposition to the obverse face of the mounting plate. A projection extends outwardly from the reverse face of the unique backing late at least partially to circumscribe the aperture that penetrates the backing plate. A spacer lug extends outwardly from the obverse face of the backing plate, the spacer lug being located in proximity to the aforesaid aperture. A washer is interposed between the bolt head and the spacer lug. An elongated bar nut is adapted to engage the threaded shank on the mounting bolt while the bar nut is captured within the projection disposed on the reverse side of the unique backing plate.
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: August 24, 1999
    Assignee: Shakespeare Company
    Inventors: James W. Davidson, Dennis S. Bradley, Gregory S. Hosford, John F. Boozer, III
  • Patent number: 5759925
    Abstract: An extruded monofilament is formed from a compatibilized blend of polyphenylene sulfide and a polyamide resin. The blend is compatibilized by the addition of a compatibilizing resin selected from the group consisting of chemically modified and functionalized polyolefins. Preferably, from about 25 to about 99 parts by weight of a polyphenylene sulfide resin and from about 75 to 1 parts by weight of at least one polyamide resin, together with from about 0.1 to 10 parts by weight of a compatibilizer are blended and extruded to form the monofilament. The resultant monofilament exhibits improved physical properties as compared to unblended polyphenylene sulfide resins (PPS), as well as uncompatibilized blends of PPS with other materials. The monofilaments prepared from these compatibilized blends are useful as components of industrial fabrics, particularly fabrics such as are used as belts on paper forming machines. The polymer blend and a process for the manufacture of the monofilaments are also provided.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: June 2, 1998
    Assignee: Shakespeare Company
    Inventors: Larry E. Ballard, Marc R. Savoy
  • Patent number: 5704187
    Abstract: A hollow, tapered, fiber-reinforced plastic utility pole, and a method for making the pole. The pole is designed by a computer-modelling technique that simulates applying resin-coated, reinforcing strands over the outer surface of a mandrel. A plurality of test stations are incrementally spaced from the tip portion to the butt portion of the pole simulated on the mandrel. The thickness-to-diameter ratio must be equal to or greater than an established constant at each station or additional circuits of resin-coated, reinforcing strands deemed to have been applied, as required. One then calculates the stress resistance at each successive station to determine if the acceptable stress is greater than the stress resistance required. Whatever additional circuits of resin-coated, reinforcing strands are necessary are then deemed to have been applied.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: January 6, 1998
    Assignee: Shakespeare Company
    Inventors: Gregory Sander Hosford, John Franklin Boozer, III, Robert Ashley Pollard, Jr., John Richard Lewis, Jr.
  • Patent number: 5667890
    Abstract: An extruded monofilament is formed from a compatibilized blend of polyphenylene sulfide and a polyamide resin. The blend is compatibilized by the addition of a compatibilizing resin selected from the group consisting of chemically modified and functionalized polyolefins. Preferably, from about 25 to about 99 parts by weight of a polyphenylene sulfide resin and from about 75 to 1 parts by weight of at least one polyamide resin, together with from about 0.1 to 10 parts by weight of a compatibilizer are blended and extruded to form the monofilament. The resultant monofilament exhibits improved physical properties as compared to unblended polyphenylene sulfide resins (PPS), as well as uncompatibilized blends of PPS with other materials. The monofilaments prepared from these compatibilized blends are useful as components of industrial fabrics, particularly fabrics such as are used as belts on paper forming machines. The polymer blend and a process for the manufacture of the monofilaments are also provided.
    Type: Grant
    Filed: April 2, 1996
    Date of Patent: September 16, 1997
    Assignee: Shakespeare Company
    Inventors: Larry E. Ballard, Marc R. Savoy
  • Patent number: 5648152
    Abstract: A polyester monofilament is formed from a high temperature polyester resin, a PET resin and a hydrolyric stabilizing agent, and exhibits increased resistance to hydrolytic and thermal degradation. The high temperature polyester resin can be blended with from 0 to about 5 percent by weight of a thermal stabilizing agent. In addition, a masterbatch including the PET resin and hydrolytic stabilizing agent may be compounded prior to blending with the high temperature polyester resin. A fabric may be produced having increased resistance to hydrolytic and thermal degradation and includes a plurality of woven polyester monofilaments, comprising a high temperature polyester resin, a PET resin and a hydrolytic stabilizing agent. Such fabrics have utility as fabrics for the dryer sections of paper making machines.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: July 15, 1997
    Assignee: Shakespeare Company
    Inventors: Michelle A. Diaz-Kotti, Peter J. Brissette
  • Patent number: 5597646
    Abstract: Cable structures comprising at least three thermoplastic polymer filaments are prepared in a single extrusion process and exhibit performance characteristics comparable to cabled yarn constructions. The cables can be used in fabrics such as those used in paper manufacture.
    Type: Grant
    Filed: August 23, 1995
    Date of Patent: January 28, 1997
    Assignee: Shakespeare
    Inventor: Robert A. Keller
  • Patent number: 5591525
    Abstract: Cable structures comprising at least three thermoplastic polymer filaments are prepared in a single extrusion process and exhibit performance characteristics comparable to cabled yarn constructions. The cables can be used in fabrics such as those used in paper manufacture.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: January 7, 1997
    Assignee: Shakespeare
    Inventor: Robert A. Keller
  • Patent number: 5534333
    Abstract: A spiral fabric comprising a plurality of coils having loops meshed together to form channels at points of overlap between adjacent loops, locking pins positioned in the channels to join adjacent coils to form a mesh, and the improvement wherein a cable structure of at least two thermoplastic filaments is used as at least one component of the fabric.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: July 9, 1996
    Assignee: Shakespeare
    Inventors: Robert A. Keller, William L. Price, III
  • Patent number: D443333
    Type: Grant
    Filed: March 9, 2000
    Date of Patent: June 5, 2001
    Assignee: Shakespeare Company
    Inventor: Stephen E. Gibson
  • Patent number: D370395
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: June 4, 1996
    Assignee: Shakespeare Company
    Inventors: David B. Skinner, Gordon Ferguson
  • Patent number: D376078
    Type: Grant
    Filed: August 18, 1995
    Date of Patent: December 3, 1996
    Assignee: Shakespeare Company
    Inventor: David B. Skinner
  • Patent number: D376079
    Type: Grant
    Filed: August 18, 1995
    Date of Patent: December 3, 1996
    Assignee: Shakespeare Company
    Inventor: David B. Skinner
  • Patent number: D376516
    Type: Grant
    Filed: August 18, 1995
    Date of Patent: December 17, 1996
    Assignee: Shakespeare Company
    Inventor: David B. Skinner
  • Patent number: D376739
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: December 24, 1996
    Assignee: Shakespeare Company
    Inventor: David B. Skinner
  • Patent number: D379052
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: May 6, 1997
    Assignee: Shakespeare Company
    Inventor: David B. Skinner
  • Patent number: D379418
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: May 27, 1997
    Assignee: Shakespeare Company
    Inventor: David B. Skinner
  • Patent number: D379419
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: May 27, 1997
    Assignee: Shakespeare Company
    Inventor: David B. Skinner