Resilient tires and wheels – Tires – resilient – Anti-skid devices
Reexamination Certificate
2005-03-22
2005-03-22
Maki, Steven D. (Department: 1733)
Resilient tires and wheels
Tires, resilient
Anti-skid devices
C152S901000, C152SDIG003
Reexamination Certificate
active
06868879
ABSTRACT:
A tread (1) for a tire with a preferred rolling direction, the tread having grooves (2) of substantially circumferential orientation which delimit ribs (30, 31, 32, 33, 35), at least one of which is provided close to each of its traverse edges with a plurality of incisions of width smaller than 1.5 mm. The incisions open onto the contact surface of the tread, are essentially parallel to one another, and having a mean inclination α different from zero relative to the direction perpendicular to the rolling surface (S) of the tread. The tread is characterized in that, when viewed in a section plane perpendicular to the rotational axis of the tire, each incision in a given rib, relative to a perpendicular to the contact surface of the rib at the point where the incision intersects the surface, has an inclination which varies through the thickness of the tread, each incision being inclined at an angle β1relative to said perpendicular at its point of intersection with the rolling surface when new, the angle β1being larger than the angle α, and at an angle β2at the point of the incision furthest inside the tread, the angle β2being smaller than the angle α. The point of the incision furthest inside the tread being located, relative to said perpendicular, such that it is ahead of the point of the incision located on the contact surface of the rib.
REFERENCES:
patent: 2272879 (1942-02-01), Hargraves
patent: 5896905 (1999-04-01), Lurois
patent: 6196288 (2001-03-01), Radulescu et al.
patent: 6202725 (2001-03-01), Moriya
patent: 4107547 (1991-09-01), None
patent: 19506697 (1996-08-01), None
patent: 0810104 (1997-05-01), None
patent: 864448 (1998-09-01), None
patent: 3-139404 (1991-06-01), None
patent: 10129218 (1996-01-01), None
patent: 8-207514 (1996-08-01), None
patent: WO 9826945 (1998-06-01), None
Patent Abstracts of Japan, Publ. No. 10129218, “Pneumatic Tire, and Vulcanizing Die Used in Its Manufacture,” May 19, 1998.
Maki Steven D.
Michelin & Recherche et Technique S.A.
LandOfFree
Tread comprising ribs provided with incisions of varying... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tread comprising ribs provided with incisions of varying..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tread comprising ribs provided with incisions of varying... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3393933