Attachment plug
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Description
FIG. 1 is a front view of an attachment plug;
FIG. 2 is a rear view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a left side view thereof;
FIG. 7 is a cross-sectional view taken along line 7--7 of FIG. 3 omitting internal structure;
FIG. 8 is a cross-sectional view taken along line 8--8 of FIG. 3 omitting internal structure;
FIG. 9 is a right side view thereof showing the earth terminal pin in the extended position; and,
FIG. 10 is a front and upper right perspective view thereof with the earth terminal pin in the extended position.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
2191385 | February 1940 | Herman |
3495205 | February 1970 | Ricci |
3531757 | September 1970 | Alden |
3685000 | August 1972 | Robbins |
4201431 | May 6, 1980 | McDonald |
4767181 | August 30, 1988 | McEowen |
4954091 | September 4, 1990 | Marble et al. |
1218034 | June 1966 | DEX |
0215066 | August 1990 | JPX |
0253578 | October 1990 | JPX |
Patent History
Patent number: D339567
Type: Grant
Filed: Jan 6, 1992
Date of Patent: Sep 21, 1993
Assignee: Nichido Kogyo Kabushiki Kaisha (Osaka)
Inventor: Isao Okamoto (Osaka)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Joel Sincavage
Law Firm: Lowe, Price, LeBlanc & Becker
Application Number: 7/817,258
Type: Grant
Filed: Jan 6, 1992
Date of Patent: Sep 21, 1993
Assignee: Nichido Kogyo Kabushiki Kaisha (Osaka)
Inventor: Isao Okamoto (Osaka)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Joel Sincavage
Law Firm: Lowe, Price, LeBlanc & Becker
Application Number: 7/817,258
Classifications
Current U.S. Class:
D13/143