Electrical receptacle

Patent · Tue Jun 22 00:00:00 EDT 1993

OSTI ID:6220117

Leong, R

The invention is a receptacle for a three prong electrical plug which has either a tubular or U-shaped grounding prong. The inventive receptacle has a grounding prong socket which is sufficiently spacious to prevent the socket from significantly stretching when a larger, U-shaped grounding prong is inserted into the socket, and having two ridges to allow a snug fit when a smaller tubular shape grounding prong is inserted into the socket. The two ridges are made to prevent the socket from expanding when either the U-shaped grounding prong or the tubular grounding prong is inserted.

• DOE Contract Number: W-7405-ENG-48
• Assignee: Dept. of Energy, Washington, DC (United States)
• Patent Number(s): US 5221211; A
• Application Number: PPN: US 7-883910
• OSTI ID: 6220117
• Resource Relation: Patent File Date: 15 May 1992
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
ELECTRIC GROUNDS
DESIGN
ELECTRICAL FAULTS
EQUIPMENT PROTECTION DEVICES
POWER DISTRIBUTION
POWER DISTRIBUTION SYSTEMS
SAFEGUARDS
240201* - Power System Networks
Transmission & Distribution- AC Systems- (1990-)