Patents Assigned to Universal Screed Inc.
  • Patent number: 6203243
    Abstract: An extension screed assembly (18) for use with a paving machine (14) having a main screed (12) includes a first sliding back board (20), a first linear actuator (22) coupled to the main screed and the first sliding back board, a first extension screed (30), and a second linear actuator (32) coupled to the first sliding back board and the first extension screed. The first linear actuator displaces the first sliding back board relative to the main screed along the length of the main screed. The second linear actuator displaces the first extension screed relative to the first sliding back board along the length of the main screed. When two extension screeds are provided, one on each side of the main screed, and are fully extended, an effective paving width of the main screed doubles.
    Type: Grant
    Filed: February 3, 1998
    Date of Patent: March 20, 2001
    Assignee: Universal Screed Inc.
    Inventor: Ralph D. Birtchet
  • Patent number: 5417516
    Abstract: A heated screed assembly (10) for use with a paving machine (12) includes a screed (16). An elastomeric, electrically-powered heating element (36) is carried on the upper surface (28) of the screed. A retaining member (48) is disposed to overly the heating element, whereby the heating element is retained in contact with the upper surface of the screed during operation of the paving machine. Electric power is supplied to the elastomeric heating element by a generator (44).
    Type: Grant
    Filed: July 20, 1993
    Date of Patent: May 23, 1995
    Assignee: Universal Screed Inc.
    Inventor: Ralph D. Birtchet
  • Patent number: RE36981
    Abstract: A heated screed assembly (10) for use with a paving machine (12) includes a screed (16). An elastomeric, electrically-powered heating element (36) is carried on the upper surface (28) of the screed. A retaining member (48) is disposed to overly the heating element, whereby the heating element is retained in contact with the upper surface of the screed during operation of the paving machine. Electric power is supplied to the elastomeric heating element by a generator (44).
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: December 5, 2000
    Assignee: Universal Screed Inc.
    Inventor: Ralph D. Birtchet