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US3817019A Expired / Lapsed US ⏱️ 0.0 years remaining

Digital clock and alarm

Assignee: Individual
•
Filing: 1973-04-06
•
Granted: 1974-06-18
•
Expires: 1993-04-06
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Abstract

Abstract A clock and alarm and/or timer associated therewith consisting of a stationary base member having time interval indications thereon and a rotary housing having hourly time indications thereon mounted on said base, the housing having a plurality of concentric rows of openings formed in the top wall thereof and pins insertable in one or more of said openings for engaging with a tiltable type switch to complete an electrical circuit and activate an electrical device at a predetermined time.

Inventors

  • 👤 H Fowler

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 07:47
CPC Classifications
G; G04; G04C; G04C23/00; G04C23/14; G04C23/18; G04C23/22; G04C23/24

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 217 words
A combined clock and circuit maker and breaker comprising a stationary base, a clockwork mechanism mounted on said base, a central spindle extending from said clockwork mechanism and adapted to be rotated thereby, first time indicating indicia located on the side surface of said base, a rotating housing secured to said spindle for rotation therewith, second time indicating indicia located on the side surface of said housing adjacent said first time Indicating indicia to cooperate therewith for indicating the time as the said housing rotates, a plurality of rows of openings formed in the top wall of said housing arranged concentrically about said central spindle, each of said rows of openings being angularly offset with respect to the said central spindle such that each of a plurality of imaginary radial lines emanating from said central spindle and angularly spaced to represent a five-minute interval of time when said housing is rotated would intersect only one opening, a tiltable switch means mounted on said base under said housing, and pins adapted to extend through some of said openings to engage with said tiltable switch means to effect the closing of a circuit between a source of electrical energy and an electrically operated means associated therewith when the clockwork mechanism has rotated said housing to a predetermined set time.
Claim 2
Dependent Claim 217 words
A combined clock and circuit maker and breaker comprising a stationary base, a clockwork mechanism mounted on said base, a central spindle extending from said clockwork mechanism and adapted to be rotated thereby, first time indicating indicia located on the side surface of said base, a rotating housing secured to said spindle for rotation therewith, second time indicating indicia located on the side surface of said housing adjacent said first time Indicating indicia to cooperate therewith for indicating the time as the said housing rotates, a plurality of rows of openings formed in the top wall of said housing arranged concentrically about said central spindle, each of said rows of openings being angularly offset with respect to the said central spindle such that each of a plurality of imaginary radial lines emanating from said central spindle and angularly spaced to represent a five-minute interval of time when said housing is rotated would intersect only one opening, a tiltable switch means mounted on said base under said housing, and pins adapted to extend through some of said openings to engage with said tiltable switch means to effect the closing of a circuit between a source of electrical energy and an electrically operated means associated therewith when the clockwork mechanism has rotated said housing to a predetermined set time.
Claim 3
Dependent Claim 14 words
The structure recited in claim 1 wherein said switch means is a mercury switch.
Claim 4
Dependent Claim 17 words
The structure recited in claim 1 wherein said electrically operated means is a sound emitting alarm means.
Claim 5
Dependent Claim 27 words
The structure recited in claim 1 wherein the pins are of differing lengths to thus lengthen the time of sounding of an alarm closing of said circuit.
Claim 6
Dependent Claim 16 words
The structure recited in claim 1 wherein the electrically operated means comprises an electrically heated device.

References Cited (Backward Citations)

US1233559A Cited
US1929582A Cited
US2174331A Cited
US2806910A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-06-17 1977-12-17 1978-06-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-06-17 1981-12-17 1982-06-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-06-17 1985-12-17 1986-06-18 $7700.00 Window Closed / Lapsed

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