Tire tread including serrations in recessed pockets of groove sidewall
US-10308081-B2 · Jun 4, 2019 · US
Tread for a pneumatic tire
US11298982B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11298982-B2 |
| Application number | US-201916573009-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 17, 2019 |
| Priority date | Aug 29, 2019 |
| Publication date | Apr 12, 2022 |
| Grant date | Apr 12, 2022 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
A tread for a tire includes: a first tread zone extending circumferentially, continuously, and entirely around the tire, the first tread zone being formed of a first compound; a second tread zone extending circumferentially, continuously, and entirely around the tire, the second tread zone being formed of a second compound different from the first compound; and a boundary groove axially separating the first tread zone from the second tread zone, the first tread zone, the second tread zone, and the boundary groove entirely forming the tread, the boundary groove having an axial centerline disposed an axial distance from an equatorial plane of the tire. The first tread zone has a first circumferential groove and a sidewall portion defining an intermediate circumferential rib of the first tread zone and a shoulder circumferential rib of the first tread zone.
First claim
Opening claim text (preview).
What is claimed: 1. A tread for a tire comprising: a first tread zone extending circumferentially, continuously, and entirely around the tire, the first tread zone being formed of a first compound; a second tread zone extending circumferentially, continuously, and entirely around the tire, the second tread zone being formed of a second compound different from the first compound; and a boundary groove axially separating the first tread zone from the second tread zone, the first tread zone, the second tread zone, and the boundary groove entirely forming the tread, the boundary groove having an axial centerline disposed an axial distance from an equatorial plane of the tire, the first tread zone having a first circumferential groove and a sidewall portion defining an intermediate circumferential rib of the first tread zone and a shoulder circumferential rib of the first tread zone, the intermediate circumferential rib including curved blind sipes extending axially away from the boundary groove, the shoulder circumferential rib including curved blind sipes extending axially away from the first circumferential groove, the second tread zone including first lateral inclined and curved grooves spaced in the tire circumferential direction from each other, the second tread zone including second lateral inclined and curved grooves intersecting the first lateral inclined and curved grooves, the second tread zone including first lateral inclined and curved sipes generally parallel to the first lateral inclined and curved grooves, the second tread zone including second lateral inclined and curved sipes generally parallel to the second lateral inclined and curved grooves. 2. The tread as set forth in claim 1 wherein the axial distance is between 10 mm and 30 mm. 3. The tread as set forth in claim 1 wherein the axial distance defines a first tread zone with an axial width less than an axial width of the second tread zone. 4. The tread as set forth in claim 1 wherein the second tread zone has no circumferential grooves extending entirely around the tire. 5. The tread as set forth in claim 1 wherein the intermediate circumferential rib includes curved grooves extending laterally from the boundary circumferential groove across an entire axial width of the intermediate circumferential rib to the first circumferential groove. 6. The tread as set forth in claim 1 wherein the second tread zone includes a circumferential sipe extending circumferentially around the entire second tread zone. 7. The tread as set forth in claim 6 wherein the circumferential sipe has an axial width between 1.0 mm and 2.0 mm. 8. The tread as set forth in claim 6 wherein the circumferential sipe has a radial depth between 5 mm and 7 mm. 9. The tread as set forth in claim 1 wherein the second tread zone includes micro-grooves for increasing traction during acceleration/braking of the tire.
Assignees
Inventors
Classifications
being arranged in crossing relation, e.g. sipe mesh · CPC title
characterised by width · CPC title
- B60C11/0304Primary
Asymmetric patterns · CPC title
sinusoidal or zigzag at the tread surface · CPC title
having different shape within the pattern · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11298982B2 cover?
- A tread for a tire includes: a first tread zone extending circumferentially, continuously, and entirely around the tire, the first tread zone being formed of a first compound; a second tread zone extending circumferentially, continuously, and entirely around the tire, the second tread zone being formed of a second compound different from the first compound; and a boundary groove axially separat…
- Who is the assignee on this patent?
- Goodyear Tire & Rubber
- What technology area does this patent fall under?
- Primary CPC classification B60C11/0304. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Apr 12 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).