[time-nuts] Phase microstepper designs?

Brooke Clarke brooke at pacific.net
Wed Dec 9 19:54:19 UTC 2015


Hi Attila:

Once you find a patent you can then  search on the class number for very similar patents.
See the links under "Handy External Links:"
http://www.prc68.com/I/Learning.shtml
Quick allows searching for a class number or other fields (but not the text of the patent).
PS Sunnyvale has a patent library where they file US patents by class number making manual searches fairly easy.
Top Level Class # <http://www.uspto.gov/go/classification/selectbynum.htm> (left) allows you to see the meaning of the 
class to be sure that's what you're interested in.

US 4358741 <https://www.google.com/patents/US4358741> Micro time and phase stepper, 331/2 
<https://www.google.com/url?id=rl0dBAABERAJ&q=http://www.uspto.gov/web/patents/classification/uspc331/defs331.htm&usg=AFQjCNHhVSrSreshQPR_PYhdLJ0aw9tBCQ#C331S002000>, 
327/161 
<https://www.google.com/url?id=rl0dBAABERAJ&q=http://www.uspto.gov/web/patents/classification/uspc327/defs327.htm&usg=AFQjCNFoZx7H6EhU2a-QMFPGAY1I73oBzw#C327S161000>, 
333/18 
<https://www.google.com/url?id=rl0dBAABERAJ&q=http://www.uspto.gov/web/patents/classification/uspc333/defs333.htm&usg=AFQjCNF4ObmgvfHFQi9OPkPToOvejSWAZg#C333S018000>, 
331/25 
<https://www.google.com/url?id=rl0dBAABERAJ&q=http://www.uspto.gov/web/patents/classification/uspc331/defs331.htm&usg=AFQjCNHhVSrSreshQPR_PYhdLJ0aw9tBCQ#C331S025000>

CLASS 331, 	OSCILLATORS

2 	Plural oscillators controlled: <javascript:poptastic('../shadowFiles/defs331sf.htm?331_2&D&2&3');>

25 	Signal or phase comparator: <javascript:poptastic('../shadowFiles/defs331sf.htm?331_25&D&2&J&Q');>


CLASS 327,MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS
161 	With delay means: <javascript:poptastic('../shadowFiles/defs327sf.htm?327_161&D&2S&3X&4H');>

286 	With counter: <javascript:poptastic('../shadowFiles/defs327sf.htm?327_286&D&2S&79&7X&7Y');>


US 4417352 <https://www.google.com/patents/US4417352?dq=US4417352> Microphase stepper employing improved digital timing 
incrementer employing a rate multiplier, 377/43 
<https://www.google.com/url?id=Jt8eBAABERAJ&q=http://www.uspto.gov/web/patents/classification/uspc377/defs377.htm&usg=AFQjCNES34nVJJvy1BQF6eXy2lUwpG20wg#C377S043000>, 
377/47 
<https://www.google.com/url?id=Jt8eBAABERAJ&q=http://www.uspto.gov/web/patents/classification/uspc377/defs377.htm&usg=AFQjCNES34nVJJvy1BQF6eXy2lUwpG20wg#C377S047000>, 
327/286 
<https://www.google.com/url?id=Jt8eBAABERAJ&q=http://www.uspto.gov/web/patents/classification/uspc327/defs327.htm&usg=AFQjCNFoZx7H6EhU2a-QMFPGAY1I73oBzw#C327S286000>, 
377/52 
<https://www.google.com/url?id=Jt8eBAABERAJ&q=http://www.uspto.gov/web/patents/classification/uspc377/defs377.htm&usg=AFQjCNES34nVJJvy1BQF6eXy2lUwpG20wg#C377S052000>

CLASS 377,ELECTRICAL PULSE COUNTERS, PULSE DIVIDERS, OR SHIFT REGISTERS: CIRCUITS AND SYSTEMS
43 	Having phase shift: <javascript:poptastic('../shadowFiles/defs377sf.htm?377_43&D&T&19');>

47 	Pulse multiplication or division: <javascript:poptastic('../shadowFiles/defs377sf.htm?377_47&D&T&1D');>

52 	With programmable counter (i.e., with variable base): 
<javascript:poptastic('../shadowFiles/defs377sf.htm?377_52&D&T&1I');>


US 5440313 <https://www.google.com/patents/US5440313> GPS synchronized frequency/time source (Q5200 
<http://www.prc68.com/I/Q5200.shtml>), 342/352 
<https://www.google.com/url?id=vp08BAABERAJ&q=http://www.uspto.gov/web/patents/classification/uspc342/defs342.htm&usg=AFQjCNHmJcOXqM2sgcclreqTZjYK9v88aQ#C342S352000>, 
375/362 
<https://www.google.com/url?id=vp08BAABERAJ&q=http://www.uspto.gov/web/patents/classification/uspc375/defs375.htm&usg=AFQjCNFcuagMfSu6xvEzMh0uBF37Cw37ZA#C375S362000>, 
368/200 
<https://www.google.com/url?id=vp08BAABERAJ&q=http://www.uspto.gov/web/patents/classification/uspc368/defs368.htm&usg=AFQjCNH9PXe6MYSffVhm9JQ8TwfbzXRIrA#C368S200000>, 
342/357.29 
<https://www.google.com/url?id=vp08BAABERAJ&q=http://www.uspto.gov/web/patents/classification/uspc342/defs342.htm&usg=AFQjCNHmJcOXqM2sgcclreqTZjYK9v88aQ#C342S357290>, 
342/357.42 
<https://www.google.com/url?id=vp08BAABERAJ&q=http://www.uspto.gov/web/patents/classification/uspc342/defs342.htm&usg=AFQjCNHmJcOXqM2sgcclreqTZjYK9v88aQ#C342S357420>, 
342/357.59 
<https://www.google.com/url?id=vp08BAABERAJ&q=http://www.uspto.gov/web/patents/classification/uspc342/defs342.htm&usg=AFQjCNHmJcOXqM2sgcclreqTZjYK9v88aQ#C342S357590>, 
342/357.68 
<https://www.google.com/url?id=vp08BAABERAJ&q=http://www.uspto.gov/web/patents/classification/uspc342/defs342.htm&usg=AFQjCNHmJcOXqM2sgcclreqTZjYK9v88aQ#C342S357680>, 
342/357.48 
<https://www.google.com/url?id=vp08BAABERAJ&q=http://www.uspto.gov/web/patents/classification/uspc342/defs342.htm&usg=AFQjCNHmJcOXqM2sgcclreqTZjYK9v88aQ#C342S357480>

CLASS 342,COMMUNICATIONS: DIRECTIVE RADIO WAVE SYSTEMS AND DEVICES (E.G., RADAR, RADIO NAVIGATION)
352 	Including a satellite: <javascript:poptastic('../shadowFiles/defs342sf.htm?342_352&D&60&62');>


CLASS 368,HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES
200 	For adjusting the frequency or beat: <javascript:poptastic('../shadowFiles/defs368sf.htm?368_200&D&54&5K');>


CLASS 375, 	PULSE OR DIGITAL COMMUNICATIONS

62 	Frequency or phase control using synchronizing signal: 
<javascript:poptastic('../shadowFiles/defs375sf.htm?375_362&D&5F&5N');>

I haven't shown all of the class number detail, but there's a lot of class numbers to look at.

-- 
Have Fun,

Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/2012Issues.html
http://www.prc68.com/I/DietNutrition.html


Attila Kinali wrote:
> Moin,
>
> I just tried to figure out how phase microsteppers are usually build,
> but, beside the time-nuts discussion from 10 years ago and US patents
> US4358741 and US4417352 my search turned out empty. I am pretty sure
> that I used the wrong search terms and there should be lots of documentation
> out there. Can someone give me a hint what to look for?
>
> 			Attila Kinali
>




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