Patent US3966965A successfully refreshed from Google Patents.
Patent US3765510A successfully refreshed from Google Patents.
US3765510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevator control apparatus
Assignee: Individual
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Filing: 1972-03-07
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Granted: 1973-10-16
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Expires: 1992-03-07
Abstract
Abstract An apparatus for selecting the floor, and slowing down and stopping an elevator is described. The apparatus comprises first and second wires vertically mounted in an elevator shaft. The first wire has a plurality of level cams and a plurality of stepping cams alternatively mounted along its length. The second wire has a plurality of slow down cams mounted along its length. The wires and cams pass through appertures in a control box which houses a stepping switch operated by the stepping cams, a pair of micro switches operated by the leveling cams, and a further micro switch operated by the slow down cams. The slow down and leveling cams have conically shaped ends which provide for ease of movement through the control box while the stepping cams have blunt ends which easily pass through the control box yet impinge on the stepping switch for activation purposes.
Inventors
- 👤 S Richmon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:24
CPC Classifications
B; B66; B66B; B66B1/00; B66B1/34; B66B1/46; B66B1/50
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
300 words
An elevator apparatus suitable for sensing the movement of an elevator in a multi-floor building and suitable for controlling the leveling of the elevator with respect to the floors of said multi-floor building, said elevator control apparatus comprising: a first wire; a plurality of generally cylindrical level cams conically shaped at both ends, said plurality of generally cylindrical level cams equal in number to the floors of said multi-floor building, said plurality of generally cylindrical level cams being mounted on said first wire; a plurality of generally cylindrical step cams blunt at both ends, said plurality of generally cylindrical step cams being one less in number than the number of floors of said multifloor building, said plurality of generally cylindrical step cams being mounted on said first wire in a manner such that said level cams and said step cams alternate along the longitudinal length of said wire with one of said level cams starting said alternate array and another of said level cams ending said alternate array; a control box having apertures which allow said first wire and said plurality of level cams and step cams to pass through said control box; a multiple position switch located in said control box so as to be impinged upon by the blunt ends of said step cams, said impingement causing said multiple position switch to be moved from one position to another position of a multitude of predetermined positions, the positioning of said multiple position switch being related to the position of said elevator in said multi-floor building; and, a level switch means mounted in said control box so as to be impinged upon by said plurality of level cams, said level switch means adapted to control the leveling of said elevator with respect to the floors of said multi-floor building.
Claim 2
Dependent Claim
300 words
An elevator apparatus suitable for sensing the movement of an elevator in a multi-floor building and suitable for controlling the leveling of the elevator with respect to the floors of said multi-floor building, said elevator control apparatus comprising: a first wire; a plurality of generally cylindrical level cams conically shaped at both ends, said plurality of generally cylindrical level cams equal in number to the floors of said multi-floor building, said plurality of generally cylindrical level cams being mounted on said first wire; a plurality of generally cylindrical step cams blunt at both ends, said plurality of generally cylindrical step cams being one less in number than the number of floors of said multifloor building, said plurality of generally cylindrical step cams being mounted on said first wire in a manner such that said level cams and said step cams alternate along the longitudinal length of said wire with one of said level cams starting said alternate array and another of said level cams ending said alternate array; a control box having apertures which allow said first wire and said plurality of level cams and step cams to pass through said control box; a multiple position switch located in said control box so as to be impinged upon by the blunt ends of said step cams, said impingement causing said multiple position switch to be moved from one position to another position of a multitude of predetermined positions, the positioning of said multiple position switch being related to the position of said elevator in said multi-floor building; and, a level switch means mounted in said control box so as to be impinged upon by said plurality of level cams, said level switch means adapted to control the leveling of said elevator with respect to the floors of said multi-floor building.
Claim 3
Dependent Claim
88 words
An elevator control apparatus as claimed in claim 11, wherein said multiple position switch comprises a star switch having arms that are moved by the blunt ends of said plurality of step cams, and wherein said level switch means comprises first and second micro switches controlled by said level cams, said micro switches being mounted in said control box in positions such that said level cam places both micro switches in the same electrical state when said level cam is in a predetermined position within said control box.
Claim 4
Dependent Claim
47 words
An elevator control apparatus as claimed in claim 2 including: a second wire; and, a plurality of slow down cams mounted on said second wire, said control box having a second aperture which allows said second wire and said plurality of slow down cams to pass therethrough.
Claim 5
Dependent Claim
34 words
An elevator control apparatus as claimed in claim 3 wherein said switch means includes a further micro switch mounted so as to be activated by the slow down cams mounted on said second wire.
Claim 6
Dependent Claim
44 words
An elevator control apparatus as claimed in claim 4 wherein said first and second wires are fixedly mounted and wherein said control box is attached to said elevator so that said box moves relative to said first and second wires as said elevator moves.
Claim 7
Dependent Claim
47 words
An elevator control apparatus as claimed in claim 11 including: a second wire; and, a plurality of slow down cams mounted on said second wire, said control box having a second aperture which allows said second wire and said plurality of slow down cams to pass therethrough.
Claim 8
Dependent Claim
34 words
An elevator control apparatus as claimed in claim 6 wherein said switch means includes a further micro switch mounted so as to be activated by the slow down cams mounted on said second wire.
Claim 9
Dependent Claim
44 words
An elevAtor control apparatus as claimed in claim 7 wherein said first and second wires are fixedly mounted and wherein said control box is attached to said elevator so that said box moves relative to said first and second wires as said elevator moves.
References Cited (Backward Citations)
US3674113A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |