Golf club head with polymeric insert
US-2024390745-A1 · Nov 28, 2024 · US
Golf club shaft
US8961331B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8961331-B2 |
| Application number | US-201313905191-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 30, 2013 |
| Priority date | May 31, 2012 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A shaft 6 has a plurality of full length layers s 2 , s 3 , and s 6 to s 9 . The full length layers have full length bias layers s 2 and s 3 , and full length straight layers s 6 , s 8 , and s 9 . The full length straight layers s 6 , s 8 , s 9 located outside the full length bias layers s 2 and s 3 include a novolac-containing layer. In the novolac-containing layer, a content Rn of the novolac type epoxy resin is 3% by mass or greater and 19% by mass or less. If an average specific gravity of the novolac-containing layers constituting the full length straight layers is defined as S 1 , and an average specific gravity of the full length bias layers and inside of the full length bias layers is defined as S 2 , the specific gravity S 1 is greater than the specific gravity S 2.
First claim
Opening claim text (preview).
What is claimed is: 1. A golf club shaft formed as a laminate comprising fiber-reinforced resin layers, wherein the golf club shaft has a plurality of full length fiber-reinforced resin layers that extend the entire axial length of the shaft; the full length layers include full length bias layers and full length straight layers; if a layer having a matrix resin including a novolac type epoxy resin is defined as a novolac-containing layer, the full length straight layers locate…
Assignees
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Classifications
Human Necessities · mapped topic
Human Necessities · mapped topic
Human Necessities · mapped topic
- A63B60/54Primary
Human Necessities · mapped topic
Human Necessities · mapped topic
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Frequently asked questions
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- What does patent US8961331B2 cover?
- A shaft 6 has a plurality of full length layers s 2 , s 3 , and s 6 to s 9 . The full length layers have full length bias layers s 2 and s 3 , and full length straight layers s 6 , s 8 , and s 9 . The full length straight layers s 6 , s 8 , s 9 located outside the full length bias layers s 2 and s 3 include a novolac-containing layer. In the novolac-containing layer, a content Rn of the …
- Who is the assignee on this patent?
- Dunlop Sports Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification A63B60/54. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Feb 24 2015 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).