US3759463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for detecting stoppage of rotation
Assignee: Panasonic Holdings Corp
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Filing: 1970-12-14
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Granted: 1973-09-18
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Expires: 1990-12-14
Abstract
Abstract Two rotary elements, one of which is driven at a higher rate than the other, are mounted on a common shaft and a sliding member is interposed therebetween, so that when one of the rotary elements stops rotating, the sliding member is operated to change the operational direction of an associated equipment.
Inventors
- 👤 T Yoshii
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:00
CPC Classifications
G; G01; G01P; G01P13/00; G11; G11B; G11B15/00; G11B15/18; G11B15/44; G11B15/46; G11B27/00; G11B27/10; G11B27/34
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
142 words
Apparatus for detecting the stoppage of rotation, comprising: a first rotatable element; a second rotatable element mounted coaxially with and rotatable in the same direction as and normally at a slower speed than said first rotatable element; control means for controlling the rotation of said first and second rotatable elements; a rocking member interposed between said first and second rotatable elements and movably mounted on a pivot pin fixed to said second rotatable element; and a slidable member fixedly mounted on said rocking member in frictional engagement with said first rotatable element, wherein when the speed of rotation of said second rotatable element exceeds that of said first rotatable element, said rocking member is pivotably moved by said slidable member about said pivot pin to a position of engagement with said control means to change the operating state of said control means.
Claim 2
Dependent Claim
142 words
Apparatus for detecting the stoppage of rotation, comprising: a first rotatable element; a second rotatable element mounted coaxially with and rotatable in the same direction as and normally at a slower speed than said first rotatable element; control means for controlling the rotation of said first and second rotatable elements; a rocking member interposed between said first and second rotatable elements and movably mounted on a pivot pin fixed to said second rotatable element; and a slidable member fixedly mounted on said rocking member in frictional engagement with said first rotatable element, wherein when the speed of rotation of said second rotatable element exceeds that of said first rotatable element, said rocking member is pivotably moved by said slidable member about said pivot pin to a position of engagement with said control means to change the operating state of said control means.
Claim 3
Dependent Claim
24 words
Apparatus for detecting the stoppage of rotation as defined in claim 1, wherein said rocking member has at least one projecting lug formed thereon.
Claim 4
Dependent Claim
46 words
Apparatus for detecting the stoppage of rotation, as defined in claim 1, wherein said rocking member has two projecting lugs, one of which projects from the peripheral edges of said first and second rotatable elements depending upon the direction of rotation of said first rotatable element.
Claim 5
Dependent Claim
88 words
Apparatus for detecting the stoppage of rotation as defined in claim 1, wherein said first and second rotatable elements and said rocking member are arranged such that the direction in which a projecting lug of said rocking member projects and the direction of pivotal movement of said rocking member aS determined by the position of the pivot point of said rocking member and an external force which said rocking member is subjected to from the load incident to the actuation of a switching element coincide with each other.
Claim 6
Dependent Claim
57 words
Apparatus for detecting the stopping of rotation as defined in claim 3, wherein a locus of rotation of one of the projecting lugs forms a locus distinguishable from that of the other, said device further comprising a driven member having two abutments which contact respective projecting lugs when the rocking member is pivoted in a given direction.
References Cited (Backward Citations)
US3480230A
Cited
US3563493A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |