Timepiece movement comprising a running equation of time device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 19, 2013
Grant Date -
Sep 27, 2012
app pub date -
Mar 20, 2012
filing date -
Mar 23, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The timepiece movement comprises a running equation of time device having a pipe (113) provided to support a minute hand for solar time mounted concentrically to the minute and hour hands for civil time, an equation of time cam (101) rotatably driven by the movement at the rate of one revolution per year, and a correction mechanism provided to periodically adjust the angular displacement of the minute hand for solar time in relation to the minute hand for civil time as a function of the angular position of the equation of time cam.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully