Invention Grant
- Patent Title: Blind fastener
- Patent Title (中): 盲扣
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Application No.: US13860944Application Date: 2013-04-11
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Publication No.: US08777533B2Publication Date: 2014-07-15
- Inventor: Gerhart Hufnagl , Douglas DeSalvo
- Applicant: Alcoa Inc.
- Applicant Address: US PA Pittsburgh
- Assignee: Alcoa Inc.
- Current Assignee: Alcoa Inc.
- Current Assignee Address: US PA Pittsburgh
- Agency: Greenberg Traurig, LLP
- Main IPC: F16B13/06
- IPC: F16B13/06 ; F16B19/10 ; F16B29/00

Abstract:
A blind fastener including a core bolt having a shank with a head and a threaded portion, and a sleeve having an elongated body with a head, an internal threaded portion, 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 such that its threaded portion engages threadedly the internal threaded portion of the sleeve. During installation of the fastener within the plurality of workpieces, 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 workpieces.
Public/Granted literature
- US20130272815A1 BLIND FASTENER Public/Granted day:2013-10-17
Information query
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