Electricity: conductors and insulators – Boxes and housings
Reexamination Certificate
2007-03-06
2007-03-06
Estrada, Angel R. (Department: 2831)
Electricity: conductors and insulators
Boxes and housings
C174S053000, C174S058000, C174S481000, C220S003200, C220S003800, C248S906000
Reexamination Certificate
active
11152967
ABSTRACT:
A square electrical box molded in one-piece of plastic material has three ENT connectors extending outwardly from each box sidewall. The connectors on each sidewall include a middle connector and two outer connectors. All of the middle connectors are sized for receiving one-half inch standard trade size ENT conduit. Both of the outer connectors one pair of opposite sidewalls are sized for receiving three-quarter inch standard trade size ENT conduit. The other pair of opposite sidewalls have one outer connector sized to receive three-quarter inch standard trade size ENT conduit and another outer connector sized to receive one-inch standard trade size ENT conduit. The box has attachment ears extending outwardly from the box corners along diagonal lines that extend across diagonally opposite ones of the box corners. An adapter attached to a front surface of the box has attachment ears aligned with the box ears. Fastener receiving holes through the attachment ears are configured to receive fasteners that are inwardly inclined toward the box central longitudinal axis.
REFERENCES:
patent: 593841 (1897-11-01), Greenfield
patent: 2611500 (1952-09-01), Martin
patent: 3052369 (1962-09-01), Taibi
patent: 3910448 (1975-10-01), Evans et al.
patent: 3927249 (1975-12-01), Pearse
patent: 4620061 (1986-10-01), Appelton
patent: 4742585 (1988-05-01), Logsdon
patent: 4936478 (1990-06-01), Bozdeck
patent: 4959506 (1990-09-01), Petty et al.
patent: 5192831 (1993-03-01), Yang
patent: 5679924 (1997-10-01), Young et al.
patent: 5783774 (1998-07-01), Bowman et al.
patent: 5939675 (1999-08-01), DeFreitas
patent: 6274809 (2001-08-01), Pudims et al.
patent: 6449141 (2002-09-01), Hartel
patent: 6521833 (2003-02-01), DeFreitas
patent: 6604798 (2003-08-01), Cooney
patent: 6733345 (2004-05-01), Weise et al.
patent: 6774307 (2004-08-01), Kruse et al.
patent: 6816381 (2004-11-01), Takeuchi
patent: 6831227 (2004-12-01), Weise et al.
patent: 7053297 (2006-05-01), Hull et al.
Gudin Robert M.
Hull Eric G.
Riedy Charles H.
Estrada Angel R.
Jones Day
The Lamson & Sessions Co.
LandOfFree
Mud box and adapters does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mud box and adapters, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mud box and adapters will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3721614