Electrometer apparatus for reproduction machines
CA 1070006 A · Owner: Xerox Corporation · Inventors: Urso, Charles J.; Wilson, Charles D.; Courtney, John E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Apparatus to enable potentials applied to various operating components of an electrostatic type reproduction machine to be measured by an electrostatic voltmeter. In one embodiment, the apparatus comprises structures designed to place the sensing element of the voltmeter in predetermined spaced relationship with a test plate the test, plate being electrically connectable to the source of potential to be measured. In another embodiment the, apparatus locates the voltmeter sensing element in predetermined spaced relation with both the reproduction machine photoreceptor and the test plate. As a further alternative a source of calibrating, potential is provided for use in calibrating the …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted January 15, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 15, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.