US3721782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triggering device for switchgear
Assignee: Telemecanique SA
•
Filing: 1972-04-17
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Granted: 1973-03-20
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Expires: 1992-04-17
Abstract
Abstract Triggering device for switchgear, characterized by an oscillating shaft 2 acting as a control unit and cooperating with an adjustable transmission unit consisting of two component parts 11, 7 and connected to the contact 12, this unit being accessible from outside without dismantling to enable it to assume several easily recognizable positions, at the same time keeping the dimensions the same as those of non-adjustable devices. Applied to the control of the travel of moving parts in machinery.
Inventors
- 👤 M Roumagnac
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:41
CPC Classifications
H; H01; H01H; H01H21/00; H01H21/02; H01H21/18; H01H21/22; H01H21/24; H01H21/28; H01H21/285; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2101; Y10T74/2102
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
204 words
Triggering device for switchgear wherein the control unit worked by a moving part is an oscillating shaft cooperating with an adjustable transmission unit connected to the contact and wherein the adjustable transmission unit is accessible from outside so that switching is done optionally in one of two or in the two oppOsite directions of movement of the moving part, characterized in that the transmission unit comprises at least two component parts 11, 7 of which the first 11 cooperates with the control unit 2 and of which the second 7 communicates with the outside through an opening 19, 40 in the instrument, the two component parts being connected to each other by a coupling 10, 9 allowing the first component part to move towards the contact 12 without taking the second with it, while the second component part 7 allows the respective positions of the cooperating parts 8, 6, 15 of the control unit and the first component part to be altered without causing the latter to move towards the contact 12, a unit (14 or 32 respectively being interposed between the control unit and the second component part to brake the latter when the control unit is not in the ''''at rest'''' position.
Claim 2
Dependent Claim
204 words
Triggering device for switchgear wherein the control unit worked by a moving part is an oscillating shaft cooperating with an adjustable transmission unit connected to the contact and wherein the adjustable transmission unit is accessible from outside so that switching is done optionally in one of two or in the two oppOsite directions of movement of the moving part, characterized in that the transmission unit comprises at least two component parts 11, 7 of which the first 11 cooperates with the control unit 2 and of which the second 7 communicates with the outside through an opening 19, 40 in the instrument, the two component parts being connected to each other by a coupling 10, 9 allowing the first component part to move towards the contact 12 without taking the second with it, while the second component part 7 allows the respective positions of the cooperating parts 8, 6, 15 of the control unit and the first component part to be altered without causing the latter to move towards the contact 12, a unit (14 or 32 respectively being interposed between the control unit and the second component part to brake the latter when the control unit is not in the ''''at rest'''' position.
Claim 3
Dependent Claim
83 words
Device in accordance with claim 1, characterized in that the two component parts 11, 7 which have a generally cylindrical revolving shape, are positioned axially inside each other and are subjected to the effect of a common sprung unit 14 which applies the second component part 7 against a fixed portion 20 of the box of the instrument, and a portion of the front surface 15 of the first component part 11 against two symmetrical cams 6, 8 on the control unit 2.
Claim 4
Dependent Claim
52 words
Device in accordance with claim 2, characterized in that the fixed portion of the box is represented by the surface 20 of the main body 1 containing the contact 12 on which a removable head 4 is mounted, comprising the control 2, transmission 11, 13, 7 and braking 14, 32, 33 units.
Claim 5
Dependent Claim
44 words
Device in accordance with claim 3, characterized in that the head 4 comprises three openings 19 extending down to the fixing surface 20 and has a bearing surface 41 which limits the axial movement of the second component part 7 and provides a seal.
Claim 6
Dependent Claim
39 words
Device in accordance with claim 1, characterized in that the braking unit is a spring 32 positioned between two balls 34, 33 respectively cooperating with cavities 31, 30 in the control unit 2 and the second component part 7.
Claim 7
Dependent Claim
54 words
Device in accordance with claim 1, characterized in that the braking unit 14 applies the first component part 11 against the cams 6, 8 via a return unit 13 which moves between the first and second component parts one front surface 16 of which is complementary to that 15 of the first component part.
Claim 8
Dependent Claim
49 words
Device in accordance with claim 1, and 6, characterized in that the second component part 7 is fitted with a toothed wheel 24 engaging with a second toothed wheel 25 borne by an auxiliary adjustment unit 26 accessible through an opening 40 which serves as a bearing for it.
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) | 1976-03-19 | 1976-09-18 | 1977-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-19 | 1980-09-18 | 1981-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-19 | 1984-09-18 | 1985-03-20 | $7700.00 | Window Closed / Lapsed |