(WO/1994/015507) BLIND OR CURTAIN SUSPENSION SYSTEM

(WO/1994/015507) BLIND OR CURTAIN SUSPENSION SYSTEM

Latest bibliographic data on file with the International Bureau
Pub. No.:  WO/1994/015507   International Application No.:  PCT/GB1994/000083
Publication Date:21.07.1994 International Filing Date:14.01.1994
Chapter 2 Demand Filed: 10.08.1994
IPC: A47H 5/032 (2006.01), A47H 5/06 (2006.01), E06B 9/32 (2006.01)
Applicants:ECLIPSE BLINDS LTD. [GB/GB]; Inchinnan, Renfrew PA4 9RE (GB) (All Except US).
BELL, David [GB/GB]; (GB) (US Only).
Inventor:BELL, David; (GB).
Agent:TUNSTALL, Christopher, Stephen; Dibb Lupton Broomhead, 117 The Headrow, Leeds, West Yorkshire LS1 5JX (GB).
Priority Data:
9300608.8 14.01.1993 GB
Title: BLIND OR CURTAIN SUSPENSION SYSTEM
Abstract: An automatic blind or curtain suspension system is described comprising a blind headrail (10) or curtain pole carrying at least one suspension device (28) arranged for movement relative to the headrail (10) or pole towards and away from a stop (48) to open and close the blind or curtain. An electric motor (44a) is coupled to the suspension device (28) and operable to cause it to move relative to the headrail (10) or pole. The system includes compression springs (50) adapted to take up additional drive from the motor (44a) once motion of the suspension device (28) is retarded by the stop (48). An automatic controller (12) is provided which detects a monotonic increase in current to the motor (44a) associated with drive from the motor (44a) being taken up by the springs (50) and interrupts current to the electric motor (44a) when the increase in motor current is detected. The controller (12) may also keep track of the position of the suspension device (28) and store its position when the increase in current is detected. Drive to the electric motor (44a) during subsequent operation of the system may then be regulated in dependence upon the stored value to interrupt current to the motor (44a) before the suspension device (28) hits the stop (48) again.
Designated States: AT, AU, BB, BG, BR, BY, CA, CH, CN, CZ, DE, DK, ES, FI, GB, HU, JP, KP, KR, KZ, LK, LU, MG, MN, MW, NL, NO, NZ, PL, PT, RO, RU, SD, SE, SK, UA, US, VN.
European Patent Office (EPO) (AT, BE, CH, DE, DK, ES, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (OAPI) (BF, BJ, CF, CG, CI, CM, GA, GN, ML, MR, NE, SN, TD, TG).
Publication Language:English (EN)
Filing Language:English (EN)

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