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    Re: De Lurk
    From: Brooke Clarke
    Date: 2003 Feb 12, 21:22 -0800

    Hello Robert:
    
    Although you can only search on patent number and class for patents older than 
    1975, ALL US patents are on line.
    The older patents are stored as images so your browser needs a tiff viewer.  
    There is a web page under help telling how to get a
    free viewer to see them.  The link for Patent # 3,002,278 is:
    
    
    
    Just click on images to see the patent. "Method for Space Navigation"  depends 
    on a hemisphere with star fields and a sidereal
    clock.  By matching the star field around the Earth you can tell where you are over the Earth.
    
    Other Patents in the same major classification 33/1SA can be seen in the list:
    
    
    
    Thanks for the patent number,
    
    Brooke Clarke
    
    Robert Eno wrote:
    
    > No problem.
    >
    > Patent # 3,002,278  Patented October 3, 1961
    > Method For Space Navigation
    > Philip V.H. Weems, Annapolis, Md.
    > Filed March 6, 1959, ser. No. 797,605
    > 2 claims (Cl.33-1)
    >
    > Let us know what you find.  Actually if you are looking for the text and
    > description of the device, the whole works is included in the handbook.
    >
    > Good luck and good hunting.
    >
    > Robert
    >
    > ----- Original Message -----
    > From: Brooke Clarke 
    > To: Navigation Mailing List 
    > Cc: Robert Eno 
    > Sent: Wednesday, February 12, 2003 9:31 PM
    > Subject: Re: De Lurk
    >
    > > Hi Robert:
    > >
    > > I would like to look up the patent, but you can not search on the inventor
    > name prior to 1975.
    > > Do you have a patent number?
    > >
    > > Thanks,
    > >
    > > Brooke Clarke
    > >
    > > Robert Eno wrote:
    > >
    > > > The United States Naval Academy produced a book called: "Space
    > Navigation
    > > > Handbook" in about 1961. It covers such topics as three dimensional
    > > > navigation and even includes discussions on several
    > mechanical/electrical
    > > > devises for position fixing in space. This includes a diagram of an
    > > > invention developed by Capt. P.V.H. Weems, whose name should be very
    > > > familiar to all of you old salts out there.
    > > >
    > > > I have to confess that I have not read this book cover to cover. It was
    > > > generously given to me by a fellow from the US in response to an enquiry
    > > > that I made about "space sextants".
    > > >
    > > > Other than that, I can't expand on the topic. A mathematician/genius, I
    > am
    > > > not!
    > > >
    > > > Robert
    > > >
    > > > ----- Original Message -----
    > > > From: Peter Fogg 
    > > > To: 
    > > > Sent: Wednesday, February 12, 2003 7:49 PM
    > > > Subject: Re: De Lurk
    > > >
    > > > > "John McKeel (jgmckeel-250927)" wrote:
    > > > >
    > > > > > LOL, well, I was trying to picture taking a sight from a sunfish....
    > > > >
    > > > > Peter Fogg wrote:
    > > > >
    > > > > > Don't forget those interested in navigation from the perspective of
    > > > aviation...
    > > > >
    > > > > Seriously though, apart from aviators this list has hosted discussions
    > > > relating to terrestial navigation (Lewis and Clark spring to mind) and
    > some
    > > > excellent postings on the particular problems of navigating about the
    > polar
    > > > ice-caps.
    > > > > Haven't noticed, yet, much to do with navigating in three dimensions
    > as
    > > > NASA and the Russians would have to do extra-terrestially but will read
    > such
    > > > stuff with great interest if it comes up - assuming I can understand it.
    > > > >
    > >
    > >
    
    
    

       
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