Socket drive improvement

US2020331125A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2020331125-A1
Application numberUS-202016918712-A
CountryUS
Kind codeA1
Filing dateJul 1, 2020
Priority dateNov 15, 2013
Publication dateOct 22, 2020
Grant date

How to read this patent

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  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Tools, for example, hexagon sockets, dodecagonal sockets, splined sockets, wrenches, etc., that have inner surface geometries adapted to engage a flank of a fastener at a point away from a corner of the fastener. This increases the strength and life of the socket, reduces a risk of the fastener becoming locked or stuck in the socket, and reduces the risk of the fastener being stripped or the socket slipping on the fastener.

First claim

Opening claim text (preview).

What is claimed is: 1 . A tool adapted to engage a head of a dodecagonal type fastener having a corner and a flank with a flank length, comprising: a surface having a sidewall extended between first and second recesses, wherein the sidewall includes substantially straight first and second portions respectively having first and second portion lengths, the first and second portions are angularly disposed by about 130 to 140 degrees relative to each other, thereby creating a contact point that is adapted to engage the flank at a distance of about 75 to 90 percent of the flank length away from the corner. 2 . The tool of claim 1 , wherein the first and second portions are angularly disposed by about 133 to 136 degrees relative to each other. 3 . The tool of claim 1 , wherein the contact point is adapted to engage the flank at a distance of about 80 to 85 percent of the flank length away from the corner 4 . The tool of claim 1 , further comprising a socket body having an axial bore, and wherein the surface is an inner surface disposed in the axial bore. 5 . The tool of claim 1 , wherein the surface is disposed on a wrench body. 6 . The tool of claim 1 , wherein the inner surface includes 12 equidistantly spaced recesses and 12 sidewalls, wherein each sidewall extends between two adjacent recesses. 7 . The tool of claim 1 , wherein the sidewall includes a third substantially straight portion between the first and second portions. 8 . The tool of claim 1 , wherein the sidewall includes a third portion between the first and second portions, and the third portion is concave. 9 . A tool adapted to engage a head of a hexagonal type fastener having a corner and a flank with a flank length, comprising: a surface having first and second recesses and a sidewall extending between the first and second recesses, wherein the sidewall includes substantially straight first and second portions respectively having first and second portion lengths, the first and second portions are angularly disposed by about 130 to 140 degrees relative to each other, thereby creating a contact point that is adapted to engage the flank at a distance of about 30 to 60 percent of half the flank length away from the corner. 10 . The tool of claim 9 , wherein the first and second portions are angularly disposed by about 133 to 136 degrees relative to each other. 11 . The tool of claim 9 , wherein the contact point is adapted to engage the flank at a distance of about 49 to 54 percent of half the flank length away from the corner 12 . The tool of claim 9 , further comprising a socket body having an axial bore, and wherein the surface is an inner surface disposed in the axial bore. 13 . The tool of claim 9 , wherein the surface is disposed on a wrench body. 14 . The tool of claim 9 , wherein the inner surface includes 12 equidistantly spaced recesses and 12 sidewalls, wherein each sidewall extends between two adjacent recesses. 15 . The tool of claim 9 , wherein the sidewall includes a third substantially straight portion between the first and second portions. 16 . The tool of claim 9 , wherein the sidewall includes a third portion between the first and second portions, and the third portion is concave.

Assignees

Inventors

Classifications

  • B25B13/065Primary

    characterised by the cross-section of the socket · CPC title

Patent family

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External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US2020331125A1 cover?
Tools, for example, hexagon sockets, dodecagonal sockets, splined sockets, wrenches, etc., that have inner surface geometries adapted to engage a flank of a fastener at a point away from a corner of the fastener. This increases the strength and life of the socket, reduces a risk of the fastener becoming locked or stuck in the socket, and reduces the risk of the fastener being stripped or the so…
Who is the assignee on this patent?
Snap On Tools Corp
What technology area does this patent fall under?
Primary CPC classification B25B13/065. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Thu Oct 22 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).