Rack and pinion wheel drive for an industrial sliding blade...

Valves and valve actuation – Mechanical movement actuator – Gear

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C251S326000, C454S334000, C074S422000

Reexamination Certificate

active

07413163

ABSTRACT:
This invention discloses improvements to a damper of the type used in industrial applications to open and close ducts carrying noxious or corrosive materials, such as combustion by-products. The improvements include a linear rack and wheeled pinion system to raise and lower a damper blade plate and improvements to the seal cartridge to prolong the life of the seal membrane and to prevent galling between the blade plate and the seal cartridge or damper frame.

REFERENCES:
patent: 10720 (1854-04-01), Andrews
patent: 558868 (1896-04-01), Wellman
patent: 1159486 (1915-11-01), Froelich
patent: 1178456 (1916-04-01), Pocock
patent: 1223754 (1917-04-01), Berles
patent: 1289508 (1918-12-01), Melcher
patent: 1381938 (1921-06-01), Sheafor
patent: 1476344 (1923-12-01), McGee et al.
patent: 1483041 (1924-02-01), Brooks
patent: 1868694 (1932-07-01), Coghlan
patent: 2240049 (1941-04-01), Murphy
patent: 2509161 (1950-05-01), Meyers
patent: 3145969 (1964-08-01), Von Zweck
patent: 3367625 (1968-02-01), Fortune
patent: 3371493 (1968-03-01), Woolley
patent: 4022241 (1977-05-01), Fox
patent: 4163458 (1979-08-01), Bachmann
patent: 4176673 (1979-12-01), Connor
patent: 4235256 (1980-11-01), Crawshay
patent: 4292992 (1981-10-01), Bhide′
patent: 4327893 (1982-05-01), Bachmann et al.
patent: 4531472 (1985-07-01), Marrero et al.
patent: 4561472 (1985-12-01), Dreyer et al.
patent: 5330720 (1994-07-01), Sorbo et al.
patent: 5494257 (1996-02-01), Maxwell
patent: 6023989 (2000-02-01), Imase et al.
patent: 6123319 (2000-09-01), Maxwell
patent: 6311800 (2001-11-01), St-Germain et al.
patent: 682416 (1990-05-01), None
patent: 32 46 227 (1982-12-01), None
patent: 0 240 620 (1987-10-01), None
patent: 2 226 417 (1990-06-01), None
patent: WO 01/44773 (2001-06-01), None
patent: WO 02/088656 (2002-11-01), 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

Rack and pinion wheel drive for an industrial sliding blade... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rack and pinion wheel drive for an industrial sliding blade..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rack and pinion wheel drive for an industrial sliding blade... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4006781

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