Patent US1943738A successfully refreshed from Google Patents.
Patent US4109768A successfully refreshed from Google Patents.
US4109768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Current collector line
Assignee: TK Aufzuege GmbH
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Filing: 1977-06-29
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Granted: 1978-08-29
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Expires: 1997-06-29
Abstract
Abstract A current collector line especially for electric trolley systems and the like wherein a support member is attached to the rail of the trolley system and includes an adapter interlocked with the bus bar and with the support member, and wherein the adapter is locked in engagement with the support member by flexible detents and the bus bar includes flexible portions maintaining its engagement with the adapter.
Inventors
- 👤 Hans-Georg Fromme
- 👤 Guckenhan Dieter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:24
CPC Classifications
H; H02; H02G; H02G5/00; H02G5/04; B; B60; B60M; B60M1/00; B60M1/30
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
159 words
A current collector line for electric trolley systems and the like and including assembly parts form-locking with a bus bar for clamp attachment of the bus bar to a guide rail for moving users comprising: a support member having a plurality of cutouts defined by a rear wall and flexible locking blades, adapter members positioned in said cutouts and retained therein by means of said locking blades, said adapter members being of generally C-shaped cross-section and having an outer shape conforming generally to the shape of said cutouts and an inner configuration wherein the open side is of reduced width and enlarges progressively inwardly, a bus bar having a sliding contact surface and a pair of depending legs positioned in each of said adapter members, said legs each being progressively inwardly then outwardly turned with respect to said contact surface so as to have a shape conplementary to the inner configuration of said adapter members and be form-locked therein.
Claim 2
Dependent Claim
159 words
A current collector line for electric trolley systems and the like and including assembly parts form-locking with a bus bar for clamp attachment of the bus bar to a guide rail for moving users comprising: a support member having a plurality of cutouts defined by a rear wall and flexible locking blades, adapter members positioned in said cutouts and retained therein by means of said locking blades, said adapter members being of generally C-shaped cross-section and having an outer shape conforming generally to the shape of said cutouts and an inner configuration wherein the open side is of reduced width and enlarges progressively inwardly, a bus bar having a sliding contact surface and a pair of depending legs positioned in each of said adapter members, said legs each being progressively inwardly then outwardly turned with respect to said contact surface so as to have a shape conplementary to the inner configuration of said adapter members and be form-locked therein.
Claim 3
Dependent Claim
40 words
A current collector line as in claim 1, wherein the outside of said adapter has at least one projection for which a corresponding receiver slot is formed in said locking blades for the fixation of said adapter against longitudinal displacement.
Claim 4
Dependent Claim
24 words
A current collector line as in claim 1 wherein shoulders are provided on the outside of said adapter for engaging projections on said blades.
Claim 5
Dependent Claim
52 words
A current collector line as in claim 1, wherein the topsides of said blades are turned inwardly toward said bus bar and are embodied both as a sliding surface for insertion of the adapter and also as a base for the rearside of the sliding contact surface of the bus bar profile.
Claim 6
Dependent Claim
37 words
A current collector line as in claim 4, wherein the area of bus bar which is turned away from the sliding contact surface has an inclined surface in a dovetail profile, to which said adapter engages tightly.
Claim 7
Dependent Claim
28 words
A current collector line as in claim 5, wherein said adapter, embodied as surrounding profile for the rearside of bus bar, has flexible through pins in both sides.
Claim 8
Dependent Claim
40 words
A current collector line as in claim 6, wherein the clamp attachment of said bus bar with said adapter in said cutouts results in said bus bar being biased against said blades and said adapter being biased against said blades.
Claim 9
Dependent Claim
40 words
A current collector line as in claim 7, wherein the the height of said cutouts in said support member between said rear wall and said blades is greater than the height of the adapter between its rear wall and shoulder.
Claim 10
Dependent Claim
33 words
A current collector line as in claim 1, wherein said support has through pins on the side turned away from the current collector line for attachment in openings of the track runway rail.
Claim 11
Dependent Claim
36 words
A current collector line as in claim 1, wherein said support has flexible clamp profiles on the top and bottom of the support which cooperate with outside bars on the profile of the track runway rail.
Claim 12
Dependent Claim
32 words
A current collector line as in claim 10, wherein the side of the support opposite the clamp attachment has a fixation projection received in a longitudinal groove of the track runway rail.
Claim 13
Dependent Claim
34 words
A current collector line as in claim 1, wherein said support has flexible material clamp blades at its top and bottom ends pressed into cutouts of corresponding dimensions in the track runway rail profile.
Claim 14
Dependent Claim
38 words
A current collector line as in claim 1, wherein the rigidity against deformation of the cutouts between flexible blades which an adapter is to surround is limited by projections extending through the middle from the base of support.
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) | 1981-08-28 | 1982-02-27 | 1982-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-28 | 1986-02-27 | 1986-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-28 | 1990-02-27 | 1990-08-29 | $7700.00 | Window Closed / Lapsed |