Method of constant RPM control for a ventilation system

Details Method of constant RPM control for a ventilation system Method of constant RPM control for a ventilation system

2011-03-29

2011-03-29

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Automatic and/or with time-delay means

Speed or rate-of-movement

C318S400010, C318S714000, C318S715000

Reexamination Certificate

active

07915847

ABSTRACT:
A method of constant airflow control includes various controls to accomplish a substantially constant airflow rate over a significant change of the static pressure in a ventilation duct. One control is a constant I·RPM control, which is primarily used in a low static pressure range. Another control is a constant RPM control, which is primarily used in a high static pressure range. These controls requires neither a static pressure sensor nor an airflow rate sensor to accomplish substantially constant airflow rate while static pressure changes.

REFERENCES:
patent: 3299335 (1967-01-01), Wessels
patent: 3444406 (1969-05-01), Aha
patent: 3457486 (1969-07-01), Soeda
patent: 3531702 (1970-09-01), Hill
patent: 3604960 (1971-09-01), Krestel
patent: 3787014 (1974-01-01), Story et al.
patent: 3878809 (1975-04-01), Ray
patent: 4004202 (1977-01-01), Davis
patent: 4271385 (1981-06-01), Azusawa
patent: 4384224 (1983-05-01), Spitler et al.
patent: 4389606 (1983-06-01), Detering
patent: 4528898 (1985-07-01), Sharp et al.
patent: 4544856 (1985-10-01), King
patent: 4638233 (1987-01-01), Erdman
patent: 4642885 (1987-02-01), King
patent: 4668898 (1987-05-01), Harms et al.
patent: 4712030 (1987-12-01), Lakin et al.
patent: 4774448 (1988-09-01), Yoshitomi
patent: 4786295 (1988-11-01), Newman et al.
patent: 4806833 (1989-02-01), Young
patent: 4880474 (1989-11-01), Koharagi et al.
patent: 4888530 (1989-12-01), Radik et al.
patent: 4978896 (1990-12-01), Shah
patent: 5019757 (1991-05-01), Beifus
patent: 5243732 (1993-09-01), Koharagi et al.
patent: 5447414 (1995-09-01), Nordby et al.
patent: 5492273 (1996-02-01), Shah
patent: 5559407 (1996-09-01), Dudley et al.
patent: 5592058 (1997-01-01), Archer et al.
patent: 5653386 (1997-08-01), Hennessee et al.
patent: 5663616 (1997-09-01), Stringfellow et al.
patent: 5680021 (1997-10-01), Hollenbeck
patent: 5736823 (1998-04-01), Nordby et al.
patent: 5739614 (1998-04-01), Suzuki et al.
patent: 5767635 (1998-06-01), Steffens et al.
patent: 5818194 (1998-10-01), Nordby
patent: 5923135 (1999-07-01), Takeda
patent: 5977740 (1999-11-01), McCann
patent: 6081013 (2000-06-01), Narita
patent: 6094026 (2000-07-01), Cameron
patent: 6209622 (2001-04-01), Lagace et al.
patent: 6255792 (2001-07-01), Grasso et al.
patent: 6310452 (2001-10-01), Deck et al.
patent: 6353299 (2002-03-01), Ramachandran et al.
patent: 6369536 (2002-04-01), Beifus et al.
patent: 6376954 (2002-04-01), Nunes, Jr.
patent: 6404086 (2002-06-01), Fukasaku et al.
patent: 6462494 (2002-10-01), Schone et al.
patent: 6504338 (2003-01-01), Eichorn
patent: RE38406 (2004-06-01), Faris et al.
patent: 6801013 (2004-10-01), Woodward et al.
patent: 6864657 (2005-03-01), Lungu
patent: 6924611 (2005-08-01), Tzeng et al.
patent: 6952088 (2005-10-01), Woodward et al.
patent: 7015663 (2006-03-01), Tzeng et al.
patent: 7042180 (2006-05-01), Terry et al.
patent: 7057376 (2006-06-01), Cook et al.
patent: 7131398 (2006-11-01), Cohen et al.
patent: 7176658 (2007-02-01), Quazi et al.
patent: 7268505 (2007-09-01), Pant et al.
patent: 7272302 (2007-09-01), Woodward et al.
patent: 7296753 (2007-11-01), Zucker
patent: 7327118 (2008-02-01), Pant et al.
patent: 7378821 (2008-05-01), Simpson, III
patent: 7443119 (2008-10-01), Liu
patent: 7458228 (2008-12-01), Lagace et al.
patent: 7466089 (2008-12-01), Beifus
patent: 7573217 (2009-08-01), Solan et al.
patent: 7590334 (2009-09-01), Yabusaki et al.
patent: 7657161 (2010-02-01), Jeung
patent: 2002/0047348 (2002-04-01), Ohiwa et al.
patent: 2002/0063542 (2002-05-01), Takahashi
patent: 2003/0001442 (2003-01-01), Hsu
patent: 2003/0042860 (2003-03-01), Sulfstede
patent: 2003/0080772 (2003-05-01), Giacomini et al.
patent: 2003/0169007 (2003-09-01), Ashiya et al.
patent: 2003/0173924 (2003-09-01), Blase et al.
patent: 2003/0214770 (2003-11-01), Schimanek et al.
patent: 2004/0124808 (2004-07-01), Hirono
patent: 2004/0130286 (2004-07-01), Caldewey et al.
patent: 2004/0232871 (2004-11-01), Deck et al.
patent: 2005/0001502 (2005-01-01), Yamazaki et al.
patent: 2005/0029976 (2005-02-01), Terry et al.
patent: 2005/0052146 (2005-03-01), Someya
patent: 2005/0156545 (2005-07-01), Mueller et al.
patent: 2005/0162108 (2005-07-01), Pant et al.
patent: 2005/0253744 (2005-11-01), Kern
patent: 2005/0269985 (2005-12-01), Yoshitomi et al.
patent: 2006/0113857 (2006-06-01), Honkura et al.
patent: 2006/0273747 (2006-12-01), Takeuchi
patent: 2006/0291820 (2006-12-01), Kobayashi
patent: 2007/0024250 (2007-02-01), Simpson, III
patent: 2007/0184339 (2007-08-01), Scheucher
patent: 2007/0210736 (2007-09-01), Ishii et al.
patent: 2007/0247091 (2007-10-01), Maiocchi
patent: 2008/0053716 (2008-03-01), Scheucher
patent: 2008/0084171 (2008-04-01), Leehey et al.
patent: 2008/0124226 (2008-05-01), Karwath
patent: 2009/0039807 (2009-02-01), Yabusaki et al.
patent: 2009/0039820 (2009-02-01), Milano et al.
patent: 2009/0134823 (2009-05-01), Jeung
patent: 2009/0134827 (2009-05-01), Jeung
patent: 2009/0136359 (2009-05-01), Jeung
patent: 2009/0136360 (2009-05-01), Jeung
patent: 2009/0315496 (2009-06-01), Jeung et al.
patent: 2009/0218968 (2009-09-01), Jeung
patent: 2009/0218971 (2009-09-01), Jeung
patent: 2009/0224709 (2009-09-01), Jeung
patent: 2009/0267549 (2009-10-01), Kitagawa
patent: 2009/0284201 (2009-11-01), Jeung
patent: 2009/0315494 (2009-12-01), Jeung et al.
patent: 2009/0315497 (2009-12-01), Jeung et al.
patent: 2009/0315498 (2009-12-01), Jeung et al.
patent: 2010/0039055 (2010-02-01), Jeung
patent: 2010/0039058 (2010-02-01), Jeung
patent: 2010/0157638 (2010-06-01), Naiknaware et al.
patent: 2 896 638 (2007-07-01), None
patent: 01129741 (1989-05-01), None
patent: 03248248 (2002-01-01), None
patent: 2004-023823 (2004-01-01), None
patent: 2004-56887 (2004-02-01), None
patent: 2004-304928 (2004-10-01), None
patent: 2005-168241 (2005-06-01), None
patent: 10-2006-0115930 (2006-11-01), None
patent: 10-0696854 (2007-03-01), None
patent: 10-2008-0019807 (2008-03-01), None
patent: 2007000114 (2007-01-01), None
patent: 2009-111503 (2009-09-01), None
patent: 2009-140419 (2009-11-01), None
patent: 2009-158359 (2009-12-01), None
Notice of Allowance dated Jan. 29, 2010 of priority application KR 10-2007-01222264—1 pg.
Notice of Allowance received in U.S. Appl. No. 12/016,894 dated Dec. 8, 2009.

Affiliated with

Also associated with

Rating

Method of constant RPM control for a ventilation system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of constant RPM control for a ventilation system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of constant RPM control for a ventilation system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2730690