Inventor
LOGAN JR EMANUEL L
7 patents
⚠️ This page may combine multiple inventors who share the name “LOGAN JR EMANUEL L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RELIABLE SECURITY SYST
3 patentsUS4720128AJan 19, 1988
Magnetic emergency exit door lock with time delay
RELIABLE SECURITY SYST73 citations94
US4470625ASep 11, 1984
Emergency exit door latch with hydraulic and electronic delay
RELIABLE SECURITY SYST49 citations91
US4314722AFeb 9, 1982
Timing apparatus for delaying opening of doors
RELIABLE SECURITY SYST22 citations80
LOGAN JR EMANUEL L
3 patentsUS4466208AAug 21, 1984
Emergency exit sign utilizing an electro-luminescent (EL) lamp and a brightness monitor
LOGAN JR EMANUEL L101 citations93
US4489308ADec 18, 1984
Emergency exit indicators
LOGAN JR EMANUEL L48 citations89
US4651358AMar 24, 1987
Apparatus for securing a pivoted member such as a toilet seat lid
LOGAN JR EMANUEL L7 citations71