Title:
AUTOMATIC DOOR ASSEMBLY AND DOOR OPERATOR THEREFOR
Document Type and Number:
WIPO Patent Application WO2000046476
Kind Code:
A3
Abstract:
The present invention relates to automatic door assemblies and swing operators therefor. One aspect of the invention provides a swing door operator that has spring return breakout and from motor driven opening. Another aspect of the invention provides a swing door operator that is non-handed with spring return from either direction. Another aspect of the invention provides a swing door operator in which spring force is transmitted to the operator output member via a cam structure. One aspect of the invention provides a swing door operator that has opening in the housing thereof for easy access to the operator motor. Another aspect of the invention provides a method for servicing a door operator. Another aspect of the invention provides a door operator with a spring force adjusting member that moves in the generally longitudinal direction of the spring structure. Another aspect of the invention provides a method for adjusting the spring force of the spring structure in a door operator. Another aspect of the invention provides a swing door operator with an adjustable stop member.
Inventors:
KOWALCZYK THOMAS M (US)
HASS BRIAN D (US)
HASS BRIAN D (US)
Application Number:
PCT/US2000/000517
Publication Date:
December 21, 2000
Filing Date:
February 04, 2000
Export Citation:
Assignee:
KOWALCZYK THOMAS M (US)
HASS BRIAN D (US)
HASS BRIAN D (US)
International Classes:
E05F3/22; E05F15/12; E05F3/10
Foreign References:
| US4220051A | 1980-09-02 | |||
| US5386885A | 1995-02-07 | |||
| US4333270A | 1982-06-08 | |||
| FR2707695A1 | 1995-01-20 | |||
| US4045914A | 1977-09-06 | |||
| US5193647A | 1993-03-16 |
Download PDF: