G - Physics – 05 – G
Patent
G - Physics
05
G
74/2
G05G 21/00 (2006.01) H01H 43/28 (2006.01)
Patent
CA 1138228
PNEUMATIC TIMER WITH ECCENTRICALLY DISPOSED VALVE NEEDLE Abstract of the Disclosure A pneumatic timer for a timing relay is regulated by the axial movement of a valve needle through a chamber formed in the body of the timer. The valve needle forms a tapered valve stem along its longitudinal axis and the valve stem is eccentrically disposed in a passageway leading from the valve chamber to provide a crescent- shaped bleed area between the valve chamber and the interior of an expandable bellows. Springs are disposed in the valve chamber to bias the needle to its eccentric position, where the valve stem contacts a portion of a valve seat formed around the passageway. The size of the bleed area between the valve stem and the noncontacting portion of the valve seat changes as the valve needle is moved along its axis, but the shape of the bleed area remains substantially the same, so that the valve can more easily be set to provide the desired time delay.
343720
Allen-Bradley Company Inc.
Fetherstonhaugh & Co.
LandOfFree
Pneumatic timer with eccentrically disposed valve needle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pneumatic timer with eccentrically disposed valve needle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pneumatic timer with eccentrically disposed valve needle will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-465062