US 4,847,819 AGranted

Universal clock having means for indicating zonal time in other global time zones

OwnerKuo-Hui Honginventor

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Abstract

A clock or watch can display 24 local times of 24 selected cities or places around the world which represent the 24 time zones around the globe respectively, including the local time of the place where the user lives no matter where the user or the watch is in the world. In addition, an alarm time can be set for the local zonal time as well as for any other 23 zonal times in the world.

Claims4

Dependent claims

A timing device usable as a clock or watch, comprising:

a case accommodating a timing mechanism of conventional construction provided with a settable hour hand arbor rotating one revolution every twelve hours, an alarm hand arbor settable to a desired alarm time rotational position for sounding an alarm when the hour hand arbor rotational position corresponds therewith, a minute hand arbor carrying a minute hand and rotating once every hour, and a second hand arbor carrying a second hand and rotating once every minute;
a shell carrying said timing mechanism case, said shell having a back plate and a front plate;
a transparent cover plate fixed centrally in said shell front plate, said cover plate having circularly arranged thereon twelve equally spaced hour number markings consisting of the numbers 1-12 with the number 12 topmost;
a transparent hour disk mounted on the hour hand arbor for rotation therewith, the hour disk having marked thereon an hour hand marking, the hour disk further having marked along a circumference thereof twelve equally spaced numerals 1-12 with the numeral 12 being aligned with said hour hand marking;
an alarm disk mounted behind the hour disk on the alarm hand arbor and rotatable with the alarm hand arbor, the alarm disk having marked thereon an alarm hand marking, the alarm disk further having marked around a circumference thereof twelve equally spaced radial alarm line markings respectively numbered 1-12, said alarm hand marking being marked between the alarm line marking numbered 11 and the alarm line marking numbered 12;
and
a name-of-place ring freely rotatably carried in said shell radially outwardly of said cover plate, said name-of-place ring having marked therearound at least one set of twelve equally spaced place name markings, each of said place name markings corresponding respectively to a different global time zone, said place name markings being arranged in order of zonal time sequence.

4 more elements

Dependencies are inferred from the claim text.

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Abstract

A timing device usable as a clock or watch, comprising:

a case accommodating a timing mechanism of conventional construction provided with a settable hour hand arbor rotating one revolution every twelve hours, an alarm hand arbor settable to a desired alarm time rotational position for sounding an alarm when the hour hand arbor rotational position corresponds therewith, a minute hand arbor carrying a minute hand and rotating once every hour, and a second hand arbor carrying a second hand and rotating once every minute;
a shell carrying said timing mechanism case, said shell having a back plate and a front plate;
a transparent cover plate fixed centrally in said shell front plate, said cover plate having circularly arranged thereon twelve equally spaced hour number markings consisting of the numbers 1-12 with the number 12 topmost;
a transparent hour disk mounted on the hour hand arbor for rotation therewith, the hour disk having marked thereon an hour hand marking, the hour disk further having marked along a circumference thereof twelve equally spaced numerals 1-12 with the numeral 12 being aligned with said hour hand marking;
an alarm disk mounted behind the hour disk on the alarm hand arbor and rotatable with the alarm hand arbor, the alarm disk having marked thereon an alarm hand marking, the alarm disk further having marked around a circumference thereof twelve equally spaced radial alarm line markings respectively numbered 1-12, said alarm hand marking being marked between the alarm line marking numbered 11 and the alarm line marking numbered 12;
and
a name-of-place ring freely rotatably carried in said shell radially outwardly of said cover plate, said name-of-place ring having marked therearound at least one set of twelve equally spaced place name markings, each of said place name markings corresponding respectively to a different global time zone, said place name markings being arranged in order of zonal time sequence.

4 more elements