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US 5,417,516 AGranted
Electrically heated paving screed
AssigneeUniversal Screed Inc.
InventorRalph D. Birtchet
Life of this patent
Estimating the term…
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).
Claims16
A heated screed assembly for use with a paving machine, comprising:
- a screed;
- an elastomeric, electrically powered heating element disposed in contact with the screed, wherein the heating element overlies and evenly heats a majority of the operative area of the screed;
- and
- an electric power supply.
1 more element
A heated screed assembly for use with a paving machine, comprising;
- a screed having a length and a width defining an upper surface;
- an electrically powered resistive heating element including means for cushioning the heating element, carried on the upper surface of the screed, wherein the heating element is configured as a flat sheet that evenly heats the screed along the length of the screed;
- and
- a retaining member disposed to overlie the heating element, whereby the heating element is retained in contact with the upper surface of the screed during operation of the paving machine.
1 more element
Dependencies are inferred from the claim text.