Electrical wiring box with structure for fast device mounting

Patent · Tue Jan 08 00:00:00 EST 1991

OSTI ID:867673

Johnston, Earl S ^[1]

---

1. Mineral Wells, WV

An electrical wiring box of molded insulating material is provided with bosses having screw holes for receiving a mounting screw that include two colinear portions of which a first portion proximate the front surface has an internal configuration, such as molded threads, that engage the mounting screw while permitting the mounting screw to be manually inserted therethrough without turning because of flexibility built into the boss structure. A second portion of the screw hole is of greater restriction for securely engaging the screw such as by self tapping. The flexibility of the boss is provided by a first center slot that extends from the screw hole to the boss exterior over a length substantially equal to the first portion of the screw hole. Second and third slots are located respectively on each side of the screw hole and provide projections respectively between the first and second slots and the first and third slots that flex to allow easy screw insertion through the first portion of the screw hole.

• Research Organization: PAI CORP
• DOE Contract Number: AC05-87ER80517
• Assignee: Challenger Electrical Materials, Inc. (Malvern, PA)
• Patent Number(s): US 4983785
• Application Number: 07/318,106
• OSTI ID: 867673
• Country of Publication: United States
• Language: English

Related Subjects

electrical
wiring
box
structure
fast
device
mounting
molded
insulating
material
provided
bosses
screw
holes
receiving
colinear
portions
portion
proximate
front
surface
internal
configuration
threads
engage
permitting
manually
inserted
therethrough
flexibility
built
boss
restriction
securely
engaging
tapping
center
slot
extends
exterior
length
substantially
equal
third
slots
located
respectively
provide
projections
flex
allow
easy
insertion
mounting screw
insulating material
front surface
substantially equal
electrical wiring
wiring box
/174/220/