Back to results
US 4,763,311 AGranted
Double clock for daylight saving
OwnerDaniel Marvoshinventor
Life of this patent
Estimating the term…
Abstract
The application discloses two time clocks interconnected by a transmission, one clock is driven by a 60 cycle synchronous motor for standard time which drives the second clock at fast time for six months then slow time for six months.
Claims6
A double clock for daylight saving, comprising:
- (a) a first clock having a clock movement;
- (b) a drive means for driving said clock movement of said first clock;
- (c) a second clock having a drive movement;
- `(d) transmission means operatively interconnecting said drive means and said clock movement of said second clock, said transmission means comprising:
- (i) a first means for driving said clock movement of said second clock at a first rate of speed;
- (ii) a second means for driving said clock movement of second clock at a second rate of speed;
- and
- (iii) selector means for selectively interconnecting said first and second means with said drive means.
5 more elements
Dependencies are inferred from the claim text.