US5090516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevator linear motor bus bar
Assignee: Otis Elevator Co
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Filing: 1991-03-15
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Granted: 1992-02-25
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Expires: 2011-03-15
Abstract
Abstract An elevator is driven by a linear motor having a flat secondary element comprised of a plurality of segments which extend the length of an elevator rise. The segments of the secondary element are connected by a bus bar which overlaps joints between each adjacent segment by enclosing an end portion of each segment. The bus bar, conducts current across the joints, provides a surface for guide rollers which maintain an air gap between the secondary element and a primary element, and minimizes relative motion between adjacent segments of the secondary element.
Inventors
- 👤 Timothy J. Gsrinaski
- 👤 Jerome E. Jaminet
- 👤 Eric G. Olsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:15
CPC Classifications
B; B66; B66B; B66B11/00; B66B11/04; B66B11/0407; H; H02; H02K; H02K41/00; H02K41/02; H02K41/025
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
116 words
An elevator for use within a hoistway, said elevator comprising: a car, a linear motor comprising; a secondary assembly having; a support attaching to said hoistway and extending therefrom, and a flat secondary element comprised of a plurality of segments, each segment supported by a first edge thereof from said support, and a bus bar means attaching to a second edge of adjacent segments of said secondary elements for conducting current between adjacent segments of the secondary element, and a primary assembly separated from said secondary element by an air gap, and a rope attaching to said car and to said primary assembly, such that motion of said primary assembly induces concomitant motion of said car.
Claim 2
Dependent Claim
116 words
An elevator for use within a hoistway, said elevator comprising: a car, a linear motor comprising; a secondary assembly having; a support attaching to said hoistway and extending therefrom, and a flat secondary element comprised of a plurality of segments, each segment supported by a first edge thereof from said support, and a bus bar means attaching to a second edge of adjacent segments of said secondary elements for conducting current between adjacent segments of the secondary element, and a primary assembly separated from said secondary element by an air gap, and a rope attaching to said car and to said primary assembly, such that motion of said primary assembly induces concomitant motion of said car.
Claim 3
Dependent Claim
24 words
The elevator of claim 1 wherein said bus bar means comprises: a bar having a slot for receiving said second edge of said segments.
Claim 4
Dependent Claim
40 words
The elevator of claim 1 further comprising: guide means attaching to said primary assembly for separating said primary assembly from said secondary assembly to maintain an air gap therebetween, said guide means traveling along a length of said bus bar.
Claim 5
Dependent Claim
34 words
The elevator of claim 3 wherein said bus bar means comprises: a bar having a slot for receiving said second edge of said segments, said bar having a surface for guiding said guide means.
Claim 6
Dependent Claim
31 words
The elevator of claim 1 wherein said bus bar means further comprises: a plurality of segments having closely spaced joints therebetween said joints being offset from joints between said adjacent segments.
Claim 7
Dependent Claim
91 words
A motor for providing motive force to an elevator disposed within a hoistway, said motor comprising: a secondary assembly having; a support attaching to said hoistway and extending therefrom, and a flat secondary element comprised of a plurality of segments, each segment supported by a first edge thereof from said support, and a bus bar means attaching to a second edge of adjacent segments of said secondary elements for conducting current between adjacent segments of the secondary element, and a primary assembly separated from said secondary assembly by an air gap.
Claim 8
Dependent Claim
91 words
A motor for providing motive force to an elevator disposed within a hoistway, said motor comprising: a secondary assembly having; a support attaching to said hoistway and extending therefrom, and a flat secondary element comprised of a plurality of segments, each segment supported by a first edge thereof from said support, and a bus bar means attaching to a second edge of adjacent segments of said secondary elements for conducting current between adjacent segments of the secondary element, and a primary assembly separated from said secondary assembly by an air gap.
Claim 9
Dependent Claim
24 words
The motor of claim 6 wherein said bus bar means comprises: a bar having a slot for receiving said second edge of said segments.
Claim 10
Dependent Claim
40 words
The motor of claim 6 further comprising: guide means attaching to said primary assembly for separating said primary assembly from said secondary assembly to maintain an air gap therebetween, said guide means traveling along a length of said bus bar.
Claim 11
Dependent Claim
34 words
The motor of claim 8 wherein said bus bar means comprises: a bar having a slot for receiving said second edge of said segments, said bar having a surface for guiding said guide means.
Claim 12
Dependent Claim
31 words
The motor of claim 6 wherein said bus bar means further comprises: a plurality of segments having closely spaced joints therebetween said joints being offset from joints between said adjacent segments.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-02-24 | 1995-08-26 | 1996-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-24 | 1999-08-26 | 2000-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-24 | 2003-08-26 | 2004-02-25 | $7700.00 | Window Closed / Lapsed |