Receptacles – Outlet or junction box type – Sectional receptacle
Patent
1989-04-13
1990-03-20
Britts, Ramon S.
Receptacles
Outlet or junction box type
Sectional receptacle
220 32, 248546, 248 271, 248 57, 248906, H02G 308
Patent
active
049094050
ABSTRACT:
An interjoist hanger assembly for supporting items to be hung is formed of a pair of elongated tubular sleeves interfitting telescopically slidable one within the other. Supported at the distal end of each of the sleeves is an axial screw and a floating collar having circumferentially distributed axially extending prongs or teeth. The sleeves effect an interlock when collapsed whereby they can be rotated in unison for threading one end into an adjacent joist. When the sleeves are expanded, the opposite sleeve end can be similarly threaded into the opposite joist. With each threaded attachment, the prongs of the surrounding collar are drawn into a gripping engagement with the joist surface thereat.
A saddle secured snap fit onto the outer sleeve includes side flanges to which an electrical outlet box can be mounted for attachment of an item to be hung. A first modification of the box for increasing load capacity utilizes elongated load screws extending from the top side of the box into a threaded engagement with the underlying ears to enable load handling capacity to be increased to on the order of about 55 pounds per ear. A further modification utilizes side clips extending between the latter screws and about the box exterior to enable increasing the box loading to on the order of about 200 pounds per ear. As an alternative, the side clips can be utilized without the load screws for achieving a gain in load handling capacity to on the order of 55 pounds per ear. The entire assembly can be installed by an average workman through a four inch wall opening at the side of installation utilizing only one hand while standing interior of the space in which hanging is to be effected.
REFERENCES:
patent: 711823 (1902-10-01), Cavallaro
patent: 1537780 (1925-05-01), Obringer
patent: 2140861 (1938-12-01), Steketeg
patent: 2374993 (1945-05-01), Haynes
patent: 2448001 (1948-08-01), Maurette
patent: 2671821 (1954-03-01), Zientowski et al.
patent: 3518421 (1970-06-01), Cogdill
patent: 4079487 (1978-03-01), Coop, Sr.
patent: 4405111 (1983-09-01), Lennon
patent: 4463923 (1984-08-01), Reiker
patent: 4513940 (1985-04-01), Alperin et al.
patent: 4513994 (1985-04-01), Dover et al.
patent: 4518141 (1985-05-01), Parkin
patent: 4538786 (1985-09-01), Manning
patent: 4659051 (1987-04-01), Propp et al.
patent: 4684092 (1987-08-01), Reiker
patent: 4788383 (1988-11-01), Caison
Invent Invest, Inc., (Photo).
Fanfast, (Photo).
Britts Ramon S.
Hulseberg Daniel
Rubin Daniel
LandOfFree
Interjoist hanger assembly and attachable support box therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Interjoist hanger assembly and attachable support box therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interjoist hanger assembly and attachable support box therefor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-786443