Movable or removable closures – With means mounting closure for reciprocation
Patent
1996-05-23
1998-01-13
Dorner, Kenneth J.
Movable or removable closures
With means mounting closure for reciprocation
49386, E05D 1506
Patent
active
057066060
ABSTRACT:
A sliding door shutting device includes a barrel slidably engaged in a housing and has a plug secured on one end and slidably engaged in the housing. The plug has an annular groove defined by two side walls. A spring may bias the barrel inward of the housing. The sealing ring is engaged with one side wall for allowing air to bypass the plug when the barrel is moved outward of the housing, and the sealing ring is engaged with the other side wall so as to make an air tight seal between the plug and the housing when the barrel is moved inward of the housing.
REFERENCES:
patent: 3278979 (1966-10-01), Clement
patent: 4003102 (1977-01-01), Hawks et al.
patent: 4974285 (1990-12-01), Enrietti
patent: 5157806 (1992-10-01), Wartian
patent: 5220706 (1993-06-01), Bivens
patent: 5313739 (1994-05-01), Nelson et al.
patent: 5471708 (1995-12-01), Lynch
Baxley Esq. Charles E.
Cohen Curtis
Dorner Kenneth J.
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