Moon phase wheel chart

Horology: time measuring systems or devices – Astronomical – With moon and earth display

Reexamination Certificate

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Reexamination Certificate

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11056610

ABSTRACT:
A moon phase wheel chart for determining the phase of the moon for a particular date, past, present, or future, has three wheel members adapted to rotate about a common center. The first wheel member has in its center indicia representing the phases of the moon and has around its circumference indicia representing the century. The second wheel member has in its center a first transparent window and has around its circumference indicia representing the year for aligning with the century indicia of the first member and indicia representing the month of the year. The third wheel member has in its center a second transparent window and has around its circumference an indicator for aligning with the month indicia of the second member and indicia for representing the day of the calendar month for aligning with the moon phase indicia of the first member.

REFERENCES:
patent: 1153492 (1915-09-01), Hoitinga
patent: 1997511 (1935-04-01), Canepa
patent: 3248866 (1966-05-01), Spilhaus
patent: 3290799 (1966-12-01), Eisenhauer
patent: 3745313 (1973-07-01), Spilhaus
patent: D254124 (1980-02-01), Greenfield
patent: 4692031 (1987-09-01), Kaneko et al.
patent: 5353264 (1994-10-01), Corbin, III
patent: 5974001 (1999-10-01), Barton
patent: 6272076 (2001-08-01), Dinger
patent: 2003/0095475 (2003-05-01), Goldberg
patent: 2003/0099159 (2003-05-01), Herbstman et al.
patent: 2004/0141422 (2004-07-01), Fitchet

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