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The ornamental design for the pipe plug latch unit, as shown and described. |
FIG. 1 is a top perspective view of a pipe plug latch unit showing our new design;
FIG. 2 is a right side elevational view thereof, the left side being a mirror image of the right side;
FIG. 3 is a top plan view thereof;
FIG. 4 is another top perspective view thereof showing the unit in an open position;
FIG. 5 is a front elevational view thereof; and,
FIG. 6 is a rear elevation view thereof.
The broken line representation of a pipe plug in FIGS. 1, 2 and 4 and a lock in FIGS. 2 and 4 are for purposes of illustration only and form no part of the claimed design.
Mathison, Allen D., Benson, Bryan R.
Patent | Priority | Assignee | Title |
5348085, | Feb 01 1993 | Cherne Industries Incorporated | Mechanical plug device |
D347880, | Nov 16 1992 | Cherne Industries Incorporated | Well monitor plug |
D696384, | Jun 30 2011 | Combined base and valve configuration for countertop water filter |
Patent | Priority | Assignee | Title |
2566816, | |||
2810401, | |||
3672403, | |||
3747541, | |||
4073168, | Oct 03 1974 | Kabushiki Kaisha Komatsu Seisakusho | Device for releasably locking a cap on a closed position |
4370919, | Jan 29 1981 | WHEELABRATOR ENGINEERED SYSTEMS INC | Vent cap assembly for a monitoring well |
4415005, | Jul 27 1981 | Pipe thread protector device | |
4493344, | Apr 13 1983 | CHERNE ACQUISITION INCORPORATED, AN OH CORP | Mechanical plug device |
4614206, | Nov 14 1985 | CHERNE ACQUISITION INCORPORATED, AN OH CORP | Expansible pneumatic plug device |
4762151, | Jul 07 1986 | THOMAS & BETTS INTERNATIONAL, INC , A CORP OF DELAWARE | Blank plug assembly |
208016, | |||
242521, | |||
D257218, | Nov 08 1977 | Toggle joint fastener | |
D283246, | Mar 11 1983 | WEL-LOC INC , A CORP OF OK | Locking valve cover |
D300350, | Dec 12 1985 | CHERNE ACQUISITION INCORPORATED, AN OH CORP | Expansible sealing plug for pipelines and the like |
D305927, | Mar 27 1986 | Swagelok Company | Nut lock plate |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Jun 13 1990 | MATHISON, ALLEN D | CHERNE INDUSTRIES INCORPORATED, A CORP OF OH | ASSIGNMENT OF ASSIGNORS INTEREST | 005357 | /0346 | |
Jun 13 1990 | BENSON, BRYAN R | CHERNE INDUSTRIES INCORPORATED, A CORP OF OH | ASSIGNMENT OF ASSIGNORS INTEREST | 005357 | /0346 | |
Jun 14 1990 | Cherne Industries Incorporated | (assignment on the face of the patent) | / |
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