Invention Grant
- Patent Title: Latch with magnetic hold-open and magnetic hold-close
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Application No.: US14934136Application Date: 2015-11-05
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Publication No.: US09963913B2Publication Date: 2018-05-08
- Inventor: William Scott Howell , Scott Douglas Farner
- Applicant: William Scott Howell , Scott Douglas Farner
- Main IPC: E05C17/56
- IPC: E05C17/56 ; E05C19/16 ; E05B47/00 ; E05B15/00

Abstract:
A pivoting lever that is designed to hold open by same polarity magnets or hold closed by opposing polarity magnets using a difference in lever arm lengths. The magnet pair closest to the pivot point will repel to hold the lever open. The magnet pair furthest from the pivot point will attract to hold the lever closed, retaining an object. The magnet pair that keeps the lever open has a magnetic force advantage compared to the magnet pair that keeps the lever closed. The magnet pair that keeps the lever closed has a mechanical advantage due to the longer lever arm. An external force is required to either open or close the lever. Once open it will remain open until acted upon by an external force. Once closed it will remain closed until acted upon by an external force.
Public/Granted literature
- US20170130483A1 LATCH WITH MAGNETIC HOLD-OPEN AND MAGNETIC HOLD-CLOSE Public/Granted day:2017-05-11
Information query
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