Safety closing system for shaft door panel of an elevator...

Elevator – industrial lift truck – or stationary lift for vehicle – With barrier for regulating access to load support – Including barrier mounted at landing

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C187S340000, C016S072000, C016S081000

Reexamination Certificate

active

07546904

ABSTRACT:
A safety closing system for a shaft door panel of an elevator installation brings the shaft door panel into a closed setting in the absence of an opening force. The safety closing system includes a spring which is stressed in the open setting of the shaft door panel and a drive mass which is subject to gravitational force, the spring and mass being coupled by a flexible tension element with the shaft door panel.

REFERENCES:
patent: 370468 (1887-09-01), Griffing et al.
patent: 937395 (1909-10-01), Vanderstegen
patent: 2271527 (1942-02-01), Peck
patent: 3334444 (1967-08-01), Hargrove
patent: 3516636 (1970-06-01), Burke
patent: 4003102 (1977-01-01), Hawks et al.
patent: 4819295 (1989-04-01), Kaftan
patent: 5131188 (1992-07-01), Hutchison et al.
patent: 5285596 (1994-02-01), Kinsey
patent: 6142260 (2000-11-01), Shin
patent: 196 14 467 (1997-10-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Safety closing system for shaft door panel of an elevator... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Safety closing system for shaft door panel of an elevator..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Safety closing system for shaft door panel of an elevator... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4080523

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.