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US 5,177,712 AGranted
Calendar display device for a timepiece
AssigneeSeiko Epson Corporation
InventorYukihisa Kakizawa
Life of this patent
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AssigneeSeiko Epson Corporation
InventorYukihisa Kakizawa
Estimating the term…
A calendar display device for a timepiece having a spindle which selectively rotates to drive the timepiece. The display device includes a day of the week wheel selectively rotatably coupled to the spindle, and a dial overlying the day of the week wheel having a window, with the dial including indicia around the periphery of the window representative of each day of the week. The day of the week wheel includes a plurality of day of the week indicators spaced therearound along the circumference of a circle passing essentially through the center of the window so that it is the day of the week wheel is selectively rotated, the indicators sequentially appear through the window and point selectively to the indicia to indicate the actual day of the week. The dial may also include an elongated circumferential window therein with days of the month positioned on opposing sides of the window. A second wheel includes indicators thereon for pointing out the particular day of the month through the window.
A calendar display device for a timepiece, said timepiece having a spindle which selectively rotates to drive the timepiece, comprising a day of the week wheel selectively rotatably coupled to said spindle, a dial overlying said day of the week wheel having a first window therein, said dial including indicia around the periphery of said first window representative of each day of the week, said day of the week wheel including a plurality of day of the week indicators space therearound along the circumference of a circle passing essentially through the center of said first window so that as said day of the week wheel is selectively rotated, said indicators sequentially appear through said first window and point selectively to said indicia to indicate the actual day of the week.
A calendar display device for a timepiece, said timepiece having a spindle which selectively rotates to drive the timepiece, comprising a day of the month wheel selectively rotatably coupled to said spindle, a dial overlying said day of the month wheel having an elongated circumferential window therein defining a first edge and a second edge, a first set of numerals representative of some days of the month on the first edge of said window and a second set of numerals representative of the other days of the month on the second edge of said window, said day of the month wheel having a first indicator thereon for selectively pointing to one of said numerals in said first set of numerals and a second indicator thereon for selectively pointing sequentially to each of said numerals in said second set of numerals after said first indicator has pointed to substantially all of the numerals in said first set of numerals.
Dependencies are inferred from the claim text.