The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 02, 1995
Filed:
Mar. 16, 1994
Richard M Beeghly, Cumberland, MO (US);
Edward L Montgomery, Cumberland, MO (US);
William H Legas, Meyersdale, PA (US);
Robert L Crump, Cumberland, MD (US);
Deloris J Schad, Hyndman, PA (US);
The Goodyear Tire & Rubber Company, Akron, OH (US);
Abstract
A pneumatic tire 20 is disclosed. The tire 20 has a carcass 21, a belt reinforcement member 26 disposed radially outwardly of the carcass 21, an annular tread 32 disposed radially outwardly of the belt reinforcing member 26, the tread 32 having a net-to-gross ratio of less than 35%. The tread 32 comprises an inner tread 34 and a plurality of traction lugs 50. At least 25% of the lugs 50 have aligned axially inner and axially outer portion is separated by a notch 60 extending between the leading edges 52 and trailing edges 54 and having a depth (n.sub.h) greater than 50% of the radial height (l.sub.h) of the lug 50 at a center of the notch along the leading edge 52, the center being located at a position 40% to 60% of the lug length (l.sub.L) from the axially inner end 53. Both the axially outer and inner portions of the notched lugs 50 have axially inner ends including enlarged lug heads. The tread lugs 50 made according to the present invention have increased flexibility which can reduce soil compaction while improving traction.