Swinging door structures for exterior telephone booths

Details Swinging door structures for exterior telephone booths Swinging door structures for exterior telephone booths

1978-07-24

1980-03-11

Kannan, Philip C.

Movable or removable closures

Bipartite, center opening

49386, E05C 704, E05F 110

Patent

active

041920996

ABSTRACT:
A swinging door assembly for securement in a door opening of an exterior telephone booth. A lintel member is secured in a top horizontal frame of the door opening. The lintel member has a pair of top pivot housings to receive and secure therein a top portion of a torsion spring bar located in a door column of a respective one of a pair of swinging doors. A pivot clamp bracket is secured to a lower portion of each vertical frame of the door opening. The pivot clamp bracket has a pivot pin which is received in a pivot hole in a lower end of a bearing bushing housing provided in each door column. A friction bearing assembly is supported about the pivot pin and in frictional engagement with a peripheral lower marginal edge of the pivot hole of the bearing bushing housing to frictionally retain a respective swinging door in a desired plane determined by the fixation of the top extension portion of the torsion bar of the respective swinging door.

REFERENCES:
patent: 2878531 (1959-03-01), Benham
patent: 3287856 (1966-11-01), Passovoy
patent: 3295589 (1977-01-01), Pfleger et al.
patent: 3629972 (1971-12-01), Rehberg et al.
patent: 3978616 (1976-09-01), Pennock
patent: 4064924 (1977-12-01), Catlett
patent: 4122630 (1978-10-01), Parisien

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