US3250361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Braking structure for conveyors
Assignee: Electrolux AB
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Filing: 1963-10-25
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Granted: 1966-05-10
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Expires: 1983-10-25
Abstract
No abstract record available.
Inventors
- 👤 Bystedt Erik Ragnar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:17
CPC Classifications
B; B65; B65G; B65G13/00; B65G13/075
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
IN A CONVEYOR, STRUCTURE COMPRISING A PLURALITY OF ROLLERS OF CYLINDRICAL FORM DEFINING A PATH OF MOVEMENT FOR ARTICLES, A DEVICE FOR BRAKING ARTICLESD TRAVELING ALONG SAID PATH OF MOVEMENT, SAID DEVICE COMPRISING A FIRST MEMBER WHICH IS SUBSTANTIALLY IMMOVABLE LENGTHWISE TO SAID PATH OF MOVEMENT, SAID FIRST MEMBER HAVING A SURFACE WHICH FORMS A PORTION OF SAID PATH OF MOVEMENT AT A FIRST ZONE THEREOF AND WHICH FUNCTIONS TO RETARD AN ARTICLE BY THE FRICTION DEVELOPED BETWEEN THE ARTICLE AND SAID SURFACE WHEN THE ARTICLE MOVES THEREIN, WHEREBY THE KINETIC ENERGY OF THE MOVING ARTICLE IS EXPANDED AGAINST THE RESISTING FRICTIONAL FORCE, AN ELEMENT WHICH IS MOVABLE BETWEEN FIRST AND SECOND POSITIONS, SAID ELEMENT BEING MOVABLE FROM ITS FIRST POSITION TO ITS SECOND POSITION RESPONSIVE TO MOVEMENT OF AN ARTICLE ONTO SAID SURFACE, A SECOND MEMBER WHICH IS OF CYLINDRICAL FORM AND ESSENTIALLY LIKE SAID ROLLERS, MEANS FOR ECCENTRICALLY MOUNTING
Claim 2
Dependent Claim
151 words
IN A CONVEYOR, STRUCTURE COMPRISING A PLURALITY OF ROLLERS OF CYLINDRICAL FORM DEFINING A PATH OF MOVEMENT FOR ARTICLES, A DEVICE FOR BRAKING ARTICLESD TRAVELING ALONG SAID PATH OF MOVEMENT, SAID DEVICE COMPRISING A FIRST MEMBER WHICH IS SUBSTANTIALLY IMMOVABLE LENGTHWISE TO SAID PATH OF MOVEMENT, SAID FIRST MEMBER HAVING A SURFACE WHICH FORMS A PORTION OF SAID PATH OF MOVEMENT AT A FIRST ZONE THEREOF AND WHICH FUNCTIONS TO RETARD AN ARTICLE BY THE FRICTION DEVELOPED BETWEEN THE ARTICLE AND SAID SURFACE WHEN THE ARTICLE MOVES THEREIN, WHEREBY THE KINETIC ENERGY OF THE MOVING ARTICLE IS EXPANDED AGAINST THE RESISTING FRICTIONAL FORCE, AN ELEMENT WHICH IS MOVABLE BETWEEN FIRST AND SECOND POSITIONS, SAID ELEMENT BEING MOVABLE FROM ITS FIRST POSITION TO ITS SECOND POSITION RESPONSIVE TO MOVEMENT OF AN ARTICLE ONTO SAID SURFACE, A SECOND MEMBER WHICH IS OF CYLINDRICAL FORM AND ESSENTIALLY LIKE SAID ROLLERS, MEANS FOR ECCENTRICALLY MOUNTING
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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |