Patent US3598970A successfully refreshed from Google Patents.
US3598970A
Expired / Lapsed
US
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Electromagnetic counter
Assignee: Citizen Watch Co Ltd
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Filing: 1969-11-17
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Granted: 1971-08-10
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Expires: 1989-11-17
Abstract
Abstract An electromagnetic counter having an electromagnetic driving means, a reduction gearing connected to the driving means and indicating members such as figure wheel or dial to indicate a count. The reduction gearing includes counting gear assemblies rotated in accordance with a scale such as decimal system, and the counting gear assemblies accumulate the kinetic energy in resilient members such as springs for rotating the indicating members. Each of the indicating members is adapted to be rotated one pitch by the accumulated kinetic energy for every transferring signal from the previous column. In addition the electromagnetic counter is provided with a zero-setting means. To accomplish the zero-setting operation, the reduction gearing is adapted to be disconnected.
Inventors
- 👤 Nagao Mizutani
- 👤 Hiroshi Mabuchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:41
CPC Classifications
G; G06; G06M; G06M1/00; G06M1/08; G06M1/10; G06M1/102; G06M1/104
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
119 words
An electromagnetic counter comprising; electromagnetic driving means actuated by a signal pulse, a ratchet wheel rotated by said electromagnetic driving means, a gear rotatable with said ratchet wheel, a reduction gearing engaged with said gear and including counting gear assemblies provided at every column and rotated in accordance with a desired scale, resilient members adapted to be deformed by the rotation of said counting gear assemblies to accumulate the kinetic energy, indicating members adapted to be rotated by the kinetic energy accumulated in each resilient member, arresting members to arrest said indicating members, locking means engageable with said indicating members, and releasing members for actuating said locking means upon transfer to free the indicating member of the following column.
Claim 2
Dependent Claim
119 words
An electromagnetic counter comprising; electromagnetic driving means actuated by a signal pulse, a ratchet wheel rotated by said electromagnetic driving means, a gear rotatable with said ratchet wheel, a reduction gearing engaged with said gear and including counting gear assemblies provided at every column and rotated in accordance with a desired scale, resilient members adapted to be deformed by the rotation of said counting gear assemblies to accumulate the kinetic energy, indicating members adapted to be rotated by the kinetic energy accumulated in each resilient member, arresting members to arrest said indicating members, locking means engageable with said indicating members, and releasing members for actuating said locking means upon transfer to free the indicating member of the following column.
Claim 3
Dependent Claim
38 words
An electromagnetic counter in accordance with claim 1 wherein each resilient means comprises a coil spring provided coaxially with the counting gear assembly and the ends thereof are engaged with the arresting member and the indicating member respectively.
Claim 4
Dependent Claim
36 words
An electromagnetic counter in accordance with claim 1 wherein each locking means comprises a lever of which one end may be engaged with the indicating member and other end may be engaged with the releasing member.
Claim 5
Dependent Claim
58 words
An electromagnetic counter in accordance with claim 1 wherein each arresting member comprises a pin secured to the counting gear assembly and each resilient member is provided between the pin and a pin secured to the indicating member, so that the rotation of the indicating member is arrested by engagement of the latter pin with the former pin.
Claim 6
Dependent Claim
190 words
An electromagnetic counter comprising; electromagnetic driving means actuated by a signal pulse, a ratchet wheel rotated by said electromagnetic driving means, a gear rotatable with said ratchet wheel, a first column counting gear assembly rotated by said gear through a disengageable intermediate gear, a reduction gearing engaged with said first column counting gear assembly, and including counting gear assemblies and disengageable intermediate gears provided at every column whereby each counting gear assembly may be rotated in accordance with desired scales, resilient members adapted to be deformed by the rotation of said counting gear assemblies to accumulate the kinetic energy, indicating members adapted to be rotated by the kinetic energy accumulated in each resilient member, arresting members to arrest said indicating members, locking means engageable with said indicating members, releasing members for actuating said each locking means upon transfer to free the indicating member of the following column, heart-shaped cams secured to the counting gear assemblies, removing means operable to disengage the intermediate gears and locking means during the zero-setting operation and zero-setting means adapted to engage with said heart-shaped cams after the disengagement of the intermediate gears and locking means.
Claim 7
Dependent Claim
190 words
An electromagnetic counter comprising; electromagnetic driving means actuated by a signal pulse, a ratchet wheel rotated by said electromagnetic driving means, a gear rotatable with said ratchet wheel, a first column counting gear assembly rotated by said gear through a disengageable intermediate gear, a reduction gearing engaged with said first column counting gear assembly, and including counting gear assemblies and disengageable intermediate gears provided at every column whereby each counting gear assembly may be rotated in accordance with desired scales, resilient members adapted to be deformed by the rotation of said counting gear assemblies to accumulate the kinetic energy, indicating members adapted to be rotated by the kinetic energy accumulated in each resilient member, arresting members to arrest said indicating members, locking means engageable with said indicating members, releasing members for actuating said each locking means upon transfer to free the indicating member of the following column, heart-shaped cams secured to the counting gear assemblies, removing means operable to disengage the intermediate gears and locking means during the zero-setting operation and zero-setting means adapted to engage with said heart-shaped cams after the disengagement of the intermediate gears and locking means.
Claim 8
Dependent Claim
203 words
An electromagnetic counter comprising; electromagnetic driving means actuated by A signal pulse, a ratchet wheel rotated by said electromagnetic driving means, a gear rotatable with said ratchet wheel, a first column counting gear assembly rotated by said gear through a disengageable intermediate gear, a reduction gearing engaged with said first column counting gear assembly and including counting gear assemblies and disengageable intermediate gears provided at every column whereby each counting gear assembly may be rotated in accordance with desired scales, resilient members adapted to be deformed by the rotation of said counting gear assemblies to accumulate the kinetic energy, indicating members adapted to be rotated by the kinetic energy accumulated in each resilient member, arresting members to arrest said indicating members, locking means engageable with said indicating members, releasing members for actuating said each locking means upon transfer to free the indicating member of the following column, heart-shaped cams secured to the counting gear assemblies, removing means operable to disengage the intermediate gears and locking means during zero-setting operation, zero-setting means adapted to engage with said heart-shaped cams after the disengagement of the intermediate gears and locking means and means for locking said zero-setting means until the intermediate gears and locking means return.
Claim 9
Dependent Claim
203 words
An electromagnetic counter comprising; electromagnetic driving means actuated by A signal pulse, a ratchet wheel rotated by said electromagnetic driving means, a gear rotatable with said ratchet wheel, a first column counting gear assembly rotated by said gear through a disengageable intermediate gear, a reduction gearing engaged with said first column counting gear assembly and including counting gear assemblies and disengageable intermediate gears provided at every column whereby each counting gear assembly may be rotated in accordance with desired scales, resilient members adapted to be deformed by the rotation of said counting gear assemblies to accumulate the kinetic energy, indicating members adapted to be rotated by the kinetic energy accumulated in each resilient member, arresting members to arrest said indicating members, locking means engageable with said indicating members, releasing members for actuating said each locking means upon transfer to free the indicating member of the following column, heart-shaped cams secured to the counting gear assemblies, removing means operable to disengage the intermediate gears and locking means during zero-setting operation, zero-setting means adapted to engage with said heart-shaped cams after the disengagement of the intermediate gears and locking means and means for locking said zero-setting means until the intermediate gears and locking means return.
Claim 10
Dependent Claim
38 words
An electromagnetic counter in accordance with claim 5 wherein each resilient means comprises a coil spring provided coaxially with the counting gear assembly and the ends thereof are engaged with the arresting member and the indicating member respectively.
Claim 11
Dependent Claim
36 words
An electromagnetic counter in accordance with claim 5 wherein each locking means comprises a lever of which one end may be engaged with the indicating member and other end may be engaged with the releasing member.
Claim 12
Dependent Claim
58 words
An electromagnetic counter in accordance with claim 5 wherein each arresting members comprises a pin secured to the counting gear assembly and each resilient member is provided between the pin and a pin secured to the indicating member, so that the rotation of the indicating member is arrested by engagement of the latter pin with the former pin.
Claim 13
Dependent Claim
37 words
An electromagnetic counter in accordance with claim 5 wherein the locking means is adapted to be disengaged from the indicating member after the intermediate gear has been disengaged from the counting gear assembly in the zero-setting operation.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |