Signals and indicators – Alarms – Liquid level
Reexamination Certificate
2006-05-16
2006-05-16
Smith, R. Alexander (Department: 2859)
Signals and indicators
Alarms
Liquid level
C116S110000, C116S227000
Reexamination Certificate
active
07044077
ABSTRACT:
The mechanical signaling device is used for indicating when contaminates are present in water in a manhole so that the contaminated can be cleaned out of the manhole before the contaminates are released into the environment. The mechanical signaling device has a flag which moves up to a visible warning position when triggered by contaminates entering a float in the manhole which will then weigh the float down which pulls on a cable attached to a trigger which releases a spring loaded flag to pop up into view. The flag is easily reset by pushing it back down against the force of the spring until it is reset for release by the triggering mechanism. The mechanical signaling mechanism is housed in a pipe and has a protective cover preventing snow from resting on the top cover, further a top cover seals pipe when the flag is down.
REFERENCES:
patent: 740516 (1903-10-01), Bassette
patent: 1676565 (1928-07-01), Vallee et al.
patent: 2463304 (1949-03-01), Pick
patent: 2468284 (1949-04-01), Balken
patent: 2594885 (1952-04-01), Due
patent: 2939419 (1960-06-01), Hawkins
patent: 3182505 (1965-05-01), Harks
patent: 3428078 (1969-02-01), Christopher
patent: 3960107 (1976-06-01), McCloskey
patent: 5862775 (1999-01-01), Stroud
patent: 5934306 (1999-08-01), Guillemenet et al.
Nikolai & Mersereau , P.A.
Royal Environmental Systems, Inc.
Smith R. Alexander
LandOfFree
Mechanical warning device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mechanical warning device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mechanical warning device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3570160