Horology: time measuring systems or devices – Displays or display device details
Patent
1995-11-24
1997-07-08
Roskoski, Bernard
Horology: time measuring systems or devices
Displays or display device details
368228, 368 89, G09B 1912, G04B 1906
Patent
active
056469136
ABSTRACT:
A teaching clock with removable repositionable pieces for representing different periods of time including a housing having an interior and an opening for allowing access to the interior; a timing mechanism disposed within the interior of the housing for keeping track of a current hour of a day; a dial face plate extended over the timing mechanism of the housing; an hour hand coupled to the timing mechanism, disposed over the dial face plate, and rotatable relative to the dial face plate for indicating the current hour; a plurality of different-sized and generally pie-shaped pieces positionable upon the dial face plate and below the hour hand, each piece subtending a sectoral region on the dial face plate in relation to the hour hand for representing a period of time when a certain activity is to be performed; and a first coupling mechanism for removably coupling the pieces to the dial face plate.
REFERENCES:
patent: 2647330 (1953-08-01), Ford
patent: 2853804 (1958-09-01), Bengeyfield
patent: 3608214 (1971-09-01), Rancati
patent: 4124945 (1978-11-01), Totten
patent: 4368045 (1983-01-01), Kuh
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