Patent · US Active

Door operator

US8499495B2 · kind B2 · utility

32Cited by

230References

23Claims

0Family size

Assignee

Yale Security Inc. · US

Inventors

Blue Houser · Edgemoor, US
Sidney J. Lampley · Monroe, US
Robert L. Tadlock, Jr. · Charlotte, US
Tom Harris · Lightwater, GB
John Presley · Monroe, US
Jeff Schoener · Charlotte, US
Lana Kirkpatrick · Monroe, US

Key dates

Filing date	Dec 30, 2011
Grant date	Aug 6, 2013
Priority date	—
Expiry date	Dec 30, 2031

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE05Y2900/132
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A drive mechanism for a door operator comprises a drive member and a driven member. The drive member is adapted to be operably connected between a motor assembly for rotating the drive member and a door closer assembly rotating with the driven member. The drive member and the driven member both include a protrusion. The driven member protrusion moves in the free space defined by driving surfaces of the drive member protrusion. Rotation of the drive member from a first angular orientation to a second angular orientation causes rotation of the driven member for powered opening of the door. The driven member protrusion moves in the free space without engaging the protrusion surfaces when the door is opened manually and allowed to close.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.