Apparatus for selective alteration of operating parameters of a

Details Apparatus for selective alteration of operating parameters of a Apparatus for selective alteration of operating parameters of a

1995-09-29

1997-11-18

Redman, Jerry

Movable or removable closures

With operator for movably mounted closure

Operating lever or link and closure swing about parallel axes

74 8915, 49339, E05F 1124

Patent

active

056875070

ABSTRACT:
Apparatus is are disclosed for selective alteration and control of door movement modes, the apparatus being primarily non-hydraulic and incorporated with a known mechanism which is functional independently from the apparatus in one mode of operation and which includes a piston for controlling door closing characteristics by selected fluid flow within the mechanism. The apparatus includes a motor driven lead screw having a linearly movable shuttle unit mounted thereon, the shuttle unit being positioned relative to the piston of the mechanism to accommodate nonattached contact with the piston to urge the piston, when the shuttle unit is moved, in a direction that will at least provide selective assistance with door opening in another mode of operation.

REFERENCES:
patent: 1684704 (1928-09-01), Hubbell
patent: 2256613 (1941-09-01), Forman et al.
patent: 3127160 (1964-03-01), Wallmann
patent: 3129936 (1964-04-01), Carlson
patent: 3874117 (1975-04-01), Boehm
patent: 4040144 (1977-08-01), Lasier et al.
patent: 4220051 (1980-09-01), Catlett
patent: 4222147 (1980-09-01), Burnett, Jr.
patent: 4339848 (1982-07-01), Burnett, Jr.
patent: 4348835 (1982-09-01), Jones et al.
patent: 4429490 (1984-02-01), Zunkel
patent: 4727679 (1988-03-01), Kornbrekke et al.
patent: 4793023 (1988-12-01), Simpson et al.
patent: 4952080 (1990-08-01), Boiucaner et al.
patent: 4995194 (1991-02-01), Schultze et al.

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