Title: Ceiling attachment apparatus

Abstract: A ceiling attachment apparatus comprising a ceiling joist including a molded frame member having a .].-shaped section having an open space in the central portion or a ceiling joist including a molded frame member having a section of a shape resembling a lip groove and another plate-like molded frame member having both the sides engaged with the lip of said molded frame member, said ceiling joist having a screw-inserting groove formed on the lower face of the lower side thereof in the longitudinal direction, a ceiling panel disposed along the lower face of the ceiling joist, a fitting fixture, a part of which is fitted on a groove formed on the side face of the ceiling panel, and a screw inserted through a hole of the fitting fixture and pressed and fixed into said screw-inserting groove of the ceiling joist.

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Inventors: Doguchi, Nobushige (Toyama, JP)
Hayashi, Moriyoshi (Kurobe, JP)

Application Number: 858013
Filing Date: 1977-12-06
Publication_date: 1979-08-07
Assignee: Yoshida Kogyo K.K. (Tokyo, JP)
Primary Class(es): 52/483.1 52/241, 52/364, 52/731.3, 52/772
Other Classes:
US Patent Ref:

2280094	Apr, 1942	Madsen	52/464.
3052330	Sep, 1962	Hammitt et al.	52/395.
3205630	Sep, 1965	Felix et al.	52/464.
3530633	Sep, 1970	Scott	52/464.
3596425	Aug, 1971	Kodaras	52/241.
3830029	Aug, 1974	Vance	52/395.

Other Refs: 2957677991487813913571811056897

Apr, 1969	AU
Nov, 1968	CA
Feb, 1935	FR
Nov, 1961	CH
Feb, 1967	GB

Primary Examiner: Perham, Alfred C.
Assistant Examiner:
Attorney: Hill, Van Santen, Steadman, Chiara & Simpson