Movable or removable closures – Bipartite – center opening – Overlapping meeting edges
Patent
1990-04-25
1991-07-23
Lindsay, Rodney M.
Movable or removable closures
Bipartite, center opening
Overlapping meeting edges
292DIG21, E05C 705
Patent
active
050332341
ABSTRACT:
A door coordinator for controlling the closing sequence of a pair of double doors having a common line of closure. The coordinator has a biased trigger which pivots and a door stop which translates toward the rear of the coordinator upon triggering. Override is provided by an override block (preferably pivotally mounted) biased into a first position which moves to a second position upon application of more than threshold override force. With the override block in the second position, the door stop is free to move in translation to the rear of the coordinator and permit closure of the door even if the trigger is not depressed. Threshold override force is adjusted by a screw which adjusts the angular position of a base plate in contact with biasing springs which bias the override block.
REFERENCES:
patent: Re29107 (1977-01-01), Imhoff
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patent: 3660940 (1972-05-01), Tavano
patent: 3822506 (1974-07-01), Fishbach
patent: 3894356 (1975-07-01), Imhoff
patent: 3895461 (1975-07-01), Maynard, Jr. et al.
patent: 3919808 (1975-11-01), Simmons
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patent: 4262448 (1981-04-01), Flider
patent: 4428153 (1984-01-01), Klinger et al.
patent: 4429492 (1984-02-01), Imhoff
patent: 4583324 (1986-04-01), Storz et al.
patent: 4653229 (1987-03-01), Feucht et al.
Glynn-Johnson's Series COR Coordinator Brochure 1981.
Door Controls No. 600 Series Surface Mounted Coordinators Template.
Campbell Andrew B.
Simon Ira J.
Lindsay Rodney M.
Redman Jerry
Triangle Brass Manufacturing Company
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