Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type – Venetian blind type
Reexamination Certificate
2005-10-25
2005-10-25
Johnson, Blair M. (Department: 3634)
Flexible or portable closure, partition, or panel
Plural strip, slat, or panel type
Venetian blind type
C160S084040, C185S037000, C074S063000, C242S373000, C242S375300
Reexamination Certificate
active
06957683
ABSTRACT:
A spring drive system useful for window covers is disclosed, which comprises one or more coil spring drives or flat spring drives and the combination whose elements are selected from one or more of a group which includes (1) a band or cord transmission which provides varying ratio power transfer as the cover is opened and closed; (2) gear means comprising various gear sets which provide frictional holding force and fixed power transfer ratios; (3) a gear transmission which provides fixed ratio power transfer as the cover is opened or closed; (4) crank mechanisms; (5) brake mechanisms; and (6) recoiler mechanisms. The combination permits the spring drive force to be tailored to the weight and/or compression characteristics of an associated window cover such as a horizontal slat or pleated or box blind as the cover is opened and closed.
REFERENCES:
patent: 13251 (1855-07-01), Bixler
patent: 2087354 (1937-07-01), Muffly
patent: 2266160 (1941-12-01), Burns
patent: 2276716 (1942-03-01), Cardona
patent: 2324536 (1943-07-01), Pratt
patent: 2390826 (1945-12-01), Cohn
patent: 2420301 (1947-05-01), Cusumano
patent: 2647743 (1953-08-01), Cook
patent: 2824608 (1958-02-01), Etten
patent: 3139877 (1964-07-01), Graybill
patent: 3151704 (1964-10-01), Clarke
patent: 3194343 (1965-07-01), Sindlinger
patent: 3358612 (1967-12-01), Bleuer
patent: 3363891 (1968-01-01), Foster
patent: 3756585 (1973-09-01), Mihalcheon
patent: 4399959 (1983-08-01), Godsoe
patent: 4427163 (1984-01-01), Kondziola
patent: 4472910 (1984-09-01), Iha
patent: 4635755 (1987-01-01), Arechaga
patent: 4664531 (1987-05-01), King
patent: 4784122 (1988-11-01), Graham
patent: 5054162 (1991-10-01), Rogers
patent: 5067541 (1991-11-01), Coslett
patent: 5105867 (1992-04-01), Coslett
patent: 5133399 (1992-07-01), Hiller et al.
patent: 5157808 (1992-10-01), Sterner
patent: 5170830 (1992-12-01), Coslett
patent: 5482100 (1996-01-01), Kuhar
patent: 5531257 (1996-07-01), Kuhar
patent: 5615729 (1997-04-01), Matsumoto et al.
patent: 5813447 (1998-09-01), Lysyj
patent: 6012506 (2000-01-01), Wang et al.
patent: 6056036 (2000-05-01), Todd et al.
patent: 6079471 (2000-06-01), Kuhar
patent: 6149094 (2000-11-01), Martin et al.
patent: 6283192 (2001-09-01), Toti
patent: 6293329 (2001-09-01), Toti
patent: 6318661 (2001-11-01), Martin et al.
patent: 6330899 (2001-12-01), Ciuca et al.
patent: 0796994 (1997-09-01), None
patent: 883709 (1943-03-01), None
patent: 53126478 (1978-11-01), None
patent: 5438648 (1979-03-01), None
patent: 5490032 (1979-07-01), None
patent: 6394234 (1988-04-01), None
patent: 63130938 (1988-06-01), None
patent: 1068583 (1984-01-01), None
Dalton Philip A.
Johnson Blair M.
LandOfFree
Spring drive system and window cover does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Spring drive system and window cover, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spring drive system and window cover will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3480696