Electrical apparatus lockout device

Patent · Fri Jan 01 00:00:00 EST 1999

OSTI ID:872570

Gonzales, Rick ^[1]

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1. Chesapeake, VA

A simple lockout device for electrical equipment equipped with recessed power blades is described. The device comprises a face-plate (12) having a threaded member (14) attached thereto and apertures suitable for accommodating the power blades of a piece of electrical equipment, an elastomeric nose (16) abutting the face-plate having a hole for passage of the threaded member therethrough and power blade apertures in registration with those of the face-plate, a block (20) having a recess (34) in its forward face for receiving at least a portion of the hose, a hole therein for receiving the threaded member and an integral extension (26) extending from its rear face. A thumb screw (22) suitable for turning with the hands and having internal threads suitable for engaging the threaded member attached to the face-plate is inserted into a passage in the integral extension to engage the threaded member in such a fashion that when the device is inserted over the recessed power blades of a piece of electrical equipment and the thumb screw (22) tightened, the elastomeric nose (16) is compressed between the face-plate (12) and the block (20) forcing it to expand laterally thereby securing the device in the recess and precluding the accidental or intentional energization of the piece of equipment by attachment of a power cord to the recessed power blades. Means are provided in the interval extension and the thumb screw for the attachment of a locking device (46) which will satisfy OSHA standards.

• Research Organization: Southeastern Universities Research Associations (SURA), Washington, DC (United States)
• DOE Contract Number: AC05-84ER40150
• Assignee: Southeastern Universities Research Assn. (Newport News, VA)
• Patent Number(s): US 5964598
• OSTI ID: 872570
• Country of Publication: United States
• Language: English

Related Subjects

electrical
apparatus
lockout
device
simple
equipment
equipped
recessed
power
blades
described
comprises
face-plate
12
threaded
14
attached
thereto
apertures
suitable
accommodating
piece
elastomeric
nose
16
abutting
passage
therethrough
blade
registration
block
20
recess
34
forward
receiving
portion
therein
integral
extension
26
extending
rear
thumb
screw
22
hands
internal
threads
engaging
inserted
engage
fashion
tightened
compressed
forcing
expand
laterally
securing
precluding
accidental
intentional
energization
attachment
cord
means
provided
interval
locking
46
satisfy
osha
standards
power cord
attached thereto
device comprises
electrical equipment
electrical apparatus
locking device
lockout device
/439/