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US 7,248,053 B2Granted
One time operating state detecting method and apparatus
AssigneePowerprecise Solutions, Inc.
InventorJohn Houldsworth
Life of this patent
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Abstract
A method and apparatus for detecting a change in an electrical property between contacts. A one-time operating state detection device includes a member coupling a pair of contacts and a detector for detecting a change in the coupling between the pair of contacts when the member is removed.
Claims33
A one-time operating state detection device comprising:
- a pair of contacts;
- a member electrically coupling said pair of contacts, said member adapted to be only once removable from said contacts, the member being bonded to the pair of contacts by a bond, wherein the bond is in a first state when the member electrically couples the pair of contacts and in a second state when the member is removed from the contacts, wherein when the bond is in the second state the bond is physically configured such that the member cannot be reattached to the pair of contacts;
- and
- a detector, wherein said detector detects a change in the coupling between said pair of contacts when said member is removed.
1 more element
A method of detecting a change in operating state, comprising:
- electrically coupling a pair of contacts using a member, said member adapted to be only once removable from said pair of contacts, wherein the member is not capable of being reattached to said contacts;
- and
- detecting a change in the coupling between said pair of contacts when said member is removed.
Dependencies are inferred from the claim text.