Blind fastener

US8979453B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8979453-B2
Application numberUS-201314055559-A
CountryUS
Kind codeB2
Filing dateOct 16, 2013
Priority dateApr 17, 2012
Publication dateMar 17, 2015
Grant dateMar 17, 2015

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  1. Title

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  2. Abstract

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  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

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A blind fastener including a pull-type core bolt having a shank with a head, and a sleeve having an elongated body with a head, and a tapered notch formed within an exterior surface thereof and defined by a tapered portion having a slope and a frictional enhanced surface. The core bolt is installed within the sleeve. During installation of the fastener within the plurality of work pieces, an axial force is applied to the core bolt the head of the core bolt engages the sleeve, and a bulb is formed on the elongated body of the sleeve, the bulb defining a portion of a bulbed portion. When a selected axial force is reached, the bulbed portion separates from the elongated body and engages axially the tapered portion of the sleeve, increasing the diameter of the bulb which engages a blind side of one of the work pieces.

First claim

Opening claim text (preview).

What is claimed is: 1. A fastener, comprising: a core bolt having an elongated shank with a first end, a second end opposite the first end, a head located at the second end, and a pull portion located at the first end, the pull portion having a plurality of grooves; and a sleeve having an elongated body with a fiat end, a second end opposite the first end of the elongated body, an exterior surface extending from the first end of the elongated body to the second end of the elonga…

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Frequently asked questions

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What does patent US8979453B2 cover?
A blind fastener including a pull-type core bolt having a shank with a head, and a sleeve having an elongated body with a head, and a tapered notch formed within an exterior surface thereof and defined by a tapered portion having a slope and a frictional enhanced surface. The core bolt is installed within the sleeve. During installation of the fastener within the plurality of work pieces, an ax…
Who is the assignee on this patent?
Alcoa Inc
What technology area does this patent fall under?
Primary CPC classification F16B19/1054. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Mar 17 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).