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Les
Joined: 09 May 2001
Posts: 2682
Location: Detroit, MI
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 Posted: Wed Oct 11, 2006 2:10 am Post subject: |
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Does anybody have a Heiland solenoid with patent numbers on it?
I'm having an... er... discussion about who invented what solenoid. He referenced the patent numbers off an HR and I don't remember ever seeing patent numbers on an HR solenoid. Graflex solenoid yet, but not an HR.
_________________
"In order to invent, you need a good imagination and a lot of junk" Thomas Edison |
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jdman
Joined: 13 May 2001
Posts: 302
Location: Midwest
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| Posted: Wed Oct 11, 2006 3:56 am Post subject: |
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| I have one Pat. 2161855 but very hard to read at my age. Russ |
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jdman
Joined: 13 May 2001
Posts: 302
Location: Midwest
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| Posted: Wed Oct 11, 2006 4:10 am Post subject: |
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| one on e-bay for 129.00 now along with some discussion on who invented the solenoid. something about 1936. Russ |
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Top
Joined: 06 Apr 2002
Posts: 198
Location: Northern New England USA
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| Posted: Wed Oct 11, 2006 1:27 pm Post subject: |
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Patent # on the box is 2161355. The same # is stamped on the gizmo as well.
Top
(and yes, I have a few NIB)
[ This Message was edited by: Top on 2006-10-11 06:31 ] |
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Les
Joined: 09 May 2001
Posts: 2682
Location: Detroit, MI
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| Posted: Wed Oct 11, 2006 2:28 pm Post subject: |
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Yeah I'm in the shuttle diplomat behind the scenes of that ebay auction.
That patent number was filed in '37 and issued in '39 and also shows up on the Graflex solenoid.
While I don't think Irving Jacobson had anything to do with the HR solenoid, I'm trying to find proof that royalties might have something to do with his patent on Sidney O. Lindahl's solenoid.
Les
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