公开(公告)号：US3588017A

公开(公告)日：1971-06-28

申请号：US3588017D

申请日：1969-10-23

Applicant: NORRIS INDUSTRIES

Inventor： O'BRIEN JAMES

IPC: H02G3/12 ,  H02G3/08

CPC classification number: H02G3/125 ,  Y10S248/906

Abstract: A METAL NAIL BRACKET FOR ELECTRICAL BOXES WHICH EMBODIES A FLAT PLATE ATTACHED TO THE BOTTOM OF A BOX WITH ARMS EXTENDING OBLIQUELY OUTWARD OF A SIDEWALL OF THE BOX, THE ARMS BEING BENT AT A 90* ANGLE TO FORM WINGS WHICH CONTINUE THE OUTWARD EXTENSION, THE WINGS EMBODYING ACUTE FOLDS AT THEIR OUTER ENDS, WITH NAIL HOLES SLIGHTLY MISALIGNED FORMED THROUGH THE FOLDS FOR RETAINING NAILS IN THE FOLDS, THE NAILS WHEN DRIVEN INTO A BUILDING STRUCTURE FLATTENING OUT THE FOLDS AND WEDGING THE NAIL THEREIN.

公开(公告)号：US3565276A

公开(公告)日：1971-02-23

申请号：US3565276D

申请日：1968-09-27

Applicant: NORRIS INDUSTRIES

Inventor： O'BRIEN JAMES ,  BESSO RICHARD A

IPC: H02G3/18 ,  H02G3/12 ,  H02G3/14

CPC classification number: H02G3/185

Abstract: A two-piece adjusting ring for use with a standard electrical floor box which latter includes a threaded handhole in the top, the adjusting ring including a threaded section or collar rotatable with respect to the box to couple them together at the situs of the installation of the box, and a separate flange adapted to overlie a floor surface or covering closely adjacent the collar and adapted to remain rotationally stationary while the collar is being advanced, the collar and flange being provided with mutually engaging smooth surfaces whereby the collar imparts a thrust upon the flange without rotating the latter.