Invention Grant
- Patent Title: Spring bolt hanger
- Patent Title (中): 弹簧螺栓衣架
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Application No.: US13462611Application Date: 2012-05-02
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Publication No.: US08453412B2Publication Date: 2013-06-04
- Inventor: Lynn Toedte
- Applicant: Lynn Toedte
- Agency: Swanson & Bratschun, LLC
- Main IPC: E04B1/38
- IPC: E04B1/38

Abstract:
A spring bolt hanger comprising a barrel, a bolt positioned within the barrel, a retainer associated with the bolt, and a spring positioned in the barrel between the retainer and a first end of the barrel, said spring configured to bias the bolt away from the first end of the barrel. The spring bolt hanger has two distinct operative configurations. In the retracted configuration the spring bolt hanger has the bolt retracted into the barrel. In the extended configuration the bolt is extended from the barrel and is accessible outside of the concrete surface for use as an attachment point. The spring bolt hanger may be selectively moved between operative configurations. Also disclosed are methods of using a spring bolt hanger to attach an object to a concrete surface.
Public/Granted literature
- US20130047546A1 SPRING BOLT HANGER Public/Granted day:2013-02-28
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