Electrical apparatus lockout device

Patent · Fri Jan 01 04:00:00 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 UNIV RESCH ASSN
• 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

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