Pneumatic tire tread and buttress

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Description

FIG. 1 is a perspective view, partly schematic, of a pneumatic tire tread and buttress embodying my new design, it being understood that the pattern is repeated throughout the circumference of the tread and buttress, as shown schematically by solid lines, and that the buttress pattern is repeated on the opposite side;

FIG. 2 is an enlarged, fragmentary developmental plan view of the tread and buttress of FIG. 1;

FIG. 3 is an enlarged fragmentary, side elevational view of the tread and buttress of FIG. 1; and

FIG. 4 is an enlarged sectional view of the tread and buttress, taken substantially as indicated by line 4--4 of FIG. 2.

Referenced Cited
U.S. Patent Documents
3645314 February 1972 Verdier
Foreign Patent Documents
186798 June 1954 SEX
Other references
  • 1970 Tread Design Guide, p. 114, CB1 Traction Tire, center right side of page. 1970 Tread Design Guide, p. 185, Continental Titan Light Tire, top left side of page. 1971 Tread Design Guide, p. 175, Phillips 66 Super XT Heavy Duty Tire, center of page.
Patent History
Patent number: D250887
Type: Grant
Filed: Jun 13, 1977
Date of Patent: Jan 23, 1979
Assignee: Uniroyal Aktiengesellschaft
Inventor: Dionysius J. Poque (Aachen)
Primary Examiner: James M. Gandy
Attorney: Charles A. Blank
Application Number: 5/806,255
Classifications
Current U.S. Class: D12/147
International Classification: D1215;