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1. (WO2005015055) LIFT DRIVE DEVICE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2005/015055 International Application No.: PCT/CA2004/001434
Publication Date: 17.02.2005 International Filing Date: 30.07.2004
Chapter 2 Demand Filed: 21.01.2005
IPC:
B66B 9/02 (2006.01) ,F16H 19/00 (2006.01) ,F16H 25/24 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
66
HOISTING; LIFTING; HAULING
B
ELEVATORS; ESCALATORS OR MOVING WALKWAYS
9
Kinds or types of lifts in, or associated with, buildings or other structures
02
actuated mechanically otherwise than by rope or cable
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
19
Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
H
GEARING
25
Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
18
for conveying or interconverting oscillating or reciprocating motions
20
Screw mechanisms
24
Elements essential to such mechanisms, e.g. screws, nuts
Applicants: SHAW, Peter[AU/CA]; CA (UsOnly)
MOLNAR, Gordon[CA/CA]; CA (UsOnly)
RUTHERFORD INDEPENDENCE LIMITED[CA/CA]; 8051 Keele Street, Unit 3A North Building Concord, Ontario L4K 1Y9, CA (AllExceptUS)
Inventors: SHAW, Peter; CA
MOLNAR, Gordon; CA
Agent: NENNIGER, James, T.; Piasetzki & Nenniger 120 Adelaide Street Suite 2308 Toronto, Ontario M5H 1T1, CA
Priority Data:
10/822,54712.04.2004US
2,436,73106.08.2003CA
Title (EN) LIFT DRIVE DEVICE
(FR) DISPOSITIF D'ENTRAINEMENT POUR ELEVATEUR
Abstract:
(EN) A lift drive comprising a spiral drive element having an axis of rotation, a rack having teeth sized and shaped to be engaged by the spiral drive element, the rack having a longitudinal axis parallel to the axis of rotation, and a motor to rotate the spiral drive element, wherein upon the spiral drive element rotating, one of the spiral drive element and the rack moves relative to the other along the longitudinal axis.
(FR) L'invention porte sur un dispositif d'entraînement pour élévateur comprenant un élément d'entraînement en spirale possédant un axe de rotation, une crémaillère dont la taille et la forme des dents permettent leur contact avec l'élément d'entraînement en spirale, cette crémaillère ayant un axe longitudinal parallèle à l'axe de rotation, et un moteur destiné à faire tourner l'élément d'entraînement en spirale. Lors de la rotation de l'élément d'entraînement en spirale, une partie de ce dernier et la crémaillère se déplacent l'une par rapport à l'autre le long de l'axe longitudinal.
front page image
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LU, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)