[volt-nuts] Pickering Patents

[John Devereux]

Brooke Clarke <brooke at pacific.net> writes:

> Hi:
>
> There are 3 "Pickering Patents":
> http://www.prc68.com/I/MTE.shtml#DCVR
> 4217651 <http://www.google.com/patents/about?id=wNouAAAAEBAJ>
> Electrical Measurements, John R. Pickering, Aug 12, 1980, - using a
> computer to characterize the uncertainty of a voltmeter
> 5369245 <http://www.google.com/patents/about?id=uY8gAAAAEBAJ> Method
> and apparatus for conditioning an electronic component having a
> Characteristic Subject to Variation with Temperature, John
> R. Pickering, Nov 29, 1994, 219/209; 257/467; 323/907; 324/224;

Aha the "degaussing" technique - thanks I was looking for that
one. Perhaps it is *this* one that is used in the newer references,
rather than the one below.

> 327/513; 327/538; 438/466; 438/795 - sort of like annealing metal
> 6342780 <http://www.google.co.uk/patents/about?id=Ec8KAAAAEBAJ> Zener
> diode reference voltage standards, John Robert Pickering, 29 Jan 2002,
> 23/313; 323/901 - pulsing used to control temperature

-- 

John Devereux