Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Meter protection or fraud combatting
Patent
1983-11-23
1986-11-04
Holko, Thomas J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Meter protection or fraud combatting
292307B, 292321, 411373, 411910, F16B 4100, G09F 300
Patent
active
046212302
ABSTRACT:
A device for assembly with a bolt or screw upon installation thereof to prevent tampering therewith, including a jacket member for encircling the enlarged fastener head with a collar portion for disposition adjacent its underside to clamp the jacket member in place upon tightening of the fastener and a cap member configured to fit within the jacket member to enclose the fastener head therewithin. A rounded annular channel is formed within the anterior wall of the jacket member and a square annular rib is formed on the outer surface of the cap member to provide a snap-tight interference fit therebetween. The interior jacket wall and the outer cap surface are also tapered at slightly differing angles to provide a supplementary interference friction fit. The snap-fit between the jacket and cap members is sufficiently strong that they cannot be separated using conventional tools without damaging or destroying the members. A special tool is provided for authorized separation of the jacket and cap members.
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Crouch Jack S.
Zink Edward F.
Carolina Moldings, Inc.
Holko Thomas J.
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