Patent US2497474A successfully refreshed from Google Patents.
Patent US3885773A successfully refreshed from Google Patents.
US3885773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic cable takeup device
Assignee: Doosan Bobcat North America Inc
•
Filing: 1974-05-06
•
Granted: 1975-05-27
•
Expires: 1994-05-06
Abstract
Abstract Apparatus for magnetically restraining the lateral movement of a flexible cable or conduit the ends of which are respectively attached to structures which move relative to each other, particularly using magnets to prevent lateral movement of a vertically extending elevator car cable.
Inventors
- 👤 Thomas L Dunkelberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:00
CPC Classifications
B; B66; B66F; B66F9/00; B66F9/06; B66F9/075; B66F9/20; B66F9/205
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
137 words
Apparatus for magnetically restricting the lateral movement of a flexible energy conduit extending between an energy source and an energy consumer movable with relation thereto including: an energy source, an energy consumer capable of movement relative to said energy source, a flexible energy conduit extending between said energy source and said energy consumer, a rigid conduit restraining member extending in a plane substantially parallel to the path of relative movement between said energy consumer and said energy sources, magnetic means for magnetically attracting said flexible energy conduit to said conduit restraining member and restricting the lateral movement of saiD conduit from said restraining member, whereby said conduit is held against said restraining member and allowed to be removed therefrom against the force of said magnetic means as said energy consumer moves relative to said fixed energy source.
Claim 2
Dependent Claim
137 words
Apparatus for magnetically restricting the lateral movement of a flexible energy conduit extending between an energy source and an energy consumer movable with relation thereto including: an energy source, an energy consumer capable of movement relative to said energy source, a flexible energy conduit extending between said energy source and said energy consumer, a rigid conduit restraining member extending in a plane substantially parallel to the path of relative movement between said energy consumer and said energy sources, magnetic means for magnetically attracting said flexible energy conduit to said conduit restraining member and restricting the lateral movement of saiD conduit from said restraining member, whereby said conduit is held against said restraining member and allowed to be removed therefrom against the force of said magnetic means as said energy consumer moves relative to said fixed energy source.
Claim 3
Dependent Claim
74 words
Apparatus for magnetically restricting the lateral movement of a flexible energy conduit extending between an energy source and an energy consumer movable with relation thereto as claimed in claim 1 in which: the magnetic means attracting said flexible energy conduit to said conduit restraining member includes a portion of said conduit having magnets arranged along the length thereof and, said conduit restraining member having a portion thereof made from material having low magnetic reluctance.
Claim 4
Dependent Claim
72 words
Apparatus for magnetically restricting the lateral movement of a flexible energy conduit extending between an energy source and an energy consumer movable with relation thereto as claimed in claim 1 in which: the magnetic means attracting said flexible energy conduit to said conduit restraining member includes, material having a low magnetic reluctance extending along the length of said flexible energy conduit and, magnets extending the length of said rigid conduit restraining member.
Claim 5
Dependent Claim
66 words
Apparatus for magnetically restricting lateral movement of a flexible energy conduit extending between an energy source and an energy consumer movable with relation thereto as claimed in claim 1 in which: said flexible energy conduit is encased in a flexible armor containing material having low magnetic reluctance and, said conduit restraining member has included thereon magnets capable of attracting said armor to said conduit restraining member.
Claim 6
Dependent Claim
59 words
Apparatus for magnetically restricting the lateral movement of a flexible energy conduit extending between an energy source and an energy consumer movable with relation thereto as claimed in claim 1 in which: said flexible energy conduit has attached thereto a series of spaced members of material having low magnetic reluctance and, said conduit restraining member includes magnets attached thereto.
Claim 7
Dependent Claim
60 words
Apparatus for magnetically restricting the lateral movement of a flexible energy conduit extending between an energy source and an energy consumer movable with relation thereto as claimed in claim 1 in which: said rigid conduit restraining member has a channel shaped opening into which said flexible energy conduit is contained when said energy conduit is restrained against said restraining member.
Claim 8
Dependent Claim
68 words
Apparatus for magnetically restricting the lateral movement of a flexible energy conduit extending between an energy source and an energy consumer movable with relation thereto as claimed in claim 1 including: a guide member attached to said energy consumer and movable therewith capable of urging said flexible energy conduit into the proximity of said conduit restraining member as said energy consumer moves with relation to said energy source.
Claim 9
Dependent Claim
42 words
Apparatus for magnetically restricting the lateral movement of a flexible energy conduit extending between an energy source and an energy consumer movable with relation thereto as claimed in claim 2 in which: the magnetized members on said conduit are spaced permanent magnets.
Claim 10
Dependent Claim
68 words
Apparatus for magnetically restricting the lateral movement of a flexible energy conduit extending between an energy source and an energy consumer movable with relation thereto as claimed in claim 7 in which: said means for urging said flexible energy conduit toward said conduit restraining member is a roller having its axis in a plane normal to the direction of relative movement between said energy source and said consumer.
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) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |