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US3591737A Expired / Lapsed US ⏱️ 0.0 years remaining

Switch mechanism for electric spring wound clock

Assignee: General Electric Co
•
Filing: 1968-11-29
•
Granted: 1971-07-06
•
Expires: 1988-11-29
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Abstract

Abstract A switch contact arrangement for starting and stopping an electric motor which periodically rewinds the main spring of a spring wound clock. Switch contacts are positioned at an angle to each other and are moved with respect to each other so that the switch is closed and contact is made at one of the ends of said contacts, the contacts slide on each other, and then the switch is opened and contact is broken at the opposite ends of the contacts.

Inventors

  • 👤 Chester B Marble
  • 👤 Harry Albinger Jr

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 05:14
CPC Classifications
G; G04; G04C; G04C1/00; G04C1/04; G04C1/06; H; H01; H01H; H01H1/00; H01H1/12; H01H1/14; H01H1/18; H01H19/00; H01H19/54; H01H19/60; H01H19/62

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 262 words
A switch for starting and stopping an electric motor which winds the main spring of a spring wound clock comprising; a. a driving gear rotated as a function of time; b. a lifting pin for actuating said switch positioned for rotation by said driving gear; c. a supporting member; d. a pair of flexible blades, each of said flexible blades having fixed ends secured to said supporting member, a converging portion, an intermediate portion, and a free end portion; e. a contact bar fixed to the intermediate portion of each of said flexible blades, the contact bar on one of said flexible blades arranged at an angle with respect to the contact bar on the other one of said flexible blades so that said contact bars form a generally X-shaped arrangement; f. said driving gear and said lifting pin located in close proximity to the free ends of said flexible blades and one of said flexible blades being shorter than the other one of said flexible blades so that upon rotation of said driving gear and said lifting pin, the lifting pin will first contact the shorter one of said flexible blades, lift both the shorter one and longer one of said flexible blades thereby causing the contact bars to start to slide along each other at one of the ends of said contact bars, and then separate from each other at the other ends of said contact bars when the lifting pin releases the shorter one of said flexible blades but continues to hold the longer one of said flexible blades.
Claim 2
Dependent Claim 262 words
A switch for starting and stopping an electric motor which winds the main spring of a spring wound clock comprising; a. a driving gear rotated as a function of time; b. a lifting pin for actuating said switch positioned for rotation by said driving gear; c. a supporting member; d. a pair of flexible blades, each of said flexible blades having fixed ends secured to said supporting member, a converging portion, an intermediate portion, and a free end portion; e. a contact bar fixed to the intermediate portion of each of said flexible blades, the contact bar on one of said flexible blades arranged at an angle with respect to the contact bar on the other one of said flexible blades so that said contact bars form a generally X-shaped arrangement; f. said driving gear and said lifting pin located in close proximity to the free ends of said flexible blades and one of said flexible blades being shorter than the other one of said flexible blades so that upon rotation of said driving gear and said lifting pin, the lifting pin will first contact the shorter one of said flexible blades, lift both the shorter one and longer one of said flexible blades thereby causing the contact bars to start to slide along each other at one of the ends of said contact bars, and then separate from each other at the other ends of said contact bars when the lifting pin releases the shorter one of said flexible blades but continues to hold the longer one of said flexible blades.
Claim 3
Dependent Claim 41 words
A switch as defined in claim 1 wherein said flexible blades are spaced a substantial distance from each other at the location where the fixed end portions of each of said flexible blades meet the convergIng portions of the flexible blade.
Claim 4
Dependent Claim 28 words
A switch as defined in claim 1 wherein the contact bars on said flexible blades are arranged at an angle of approximately 60* with respect to each other.
Claim 5
Dependent Claim 27 words
A switch as defined in claim 1 wherein said supporting member includes an integrally formed stop portion and said flexible blades are biased toward said stop portion.

References Cited (Backward Citations)

US1198340A Cited
US1799651A Cited
US2073782A Cited
US2909029A Cited
US3018353A Cited
US3148313A Cited
US3276199A Cited
US3267659A Cited
US3455103A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-07-05 1975-01-04 1975-07-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-07-05 1979-01-04 1979-07-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-07-05 1983-01-04 1983-07-06 $7700.00 Window Closed / Lapsed

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