Patent US3971459A successfully refreshed from Google Patents.
US3971459A
Expired / Lapsed
US
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Housing, including readily removable protective plates, for monorail electrical components
Assignee: Mannesmann Demag AG
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Filing: 1975-01-13
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Granted: 1976-07-27
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Expires: 1995-01-13
Abstract
Abstract A protective housing is provided for electrical rails and the like, namely, reaction (secondary) rails and slide pick-up lines for operating electro linear propulsion motors for monorail vehicles. The new and improved housing is of simplified construction and enables comparatively large protective plate members to be assembled in the form of a tight housing on elevated monorail structures. The protective plates may be readily removed and slidingly displaced to expose the normally protected electrical components for maintenance, replacement or repair.
Inventors
- 👤 Klaus Becker
- 👤 Hartwig Sprung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:19
CPC Classifications
B; B60; B60M; B60M1/00; B60M1/02; B60M1/04
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
78 words
A housing for a monorail girder mounting electrical rails, said housing including a. cantilever bracket means supporting a plurality of vertical support plates from said girder; b. an elongated longitudinally extending profile rail mounted to said support plates proximately of said electric rails; c. one horizontal longitudinal edge of each of said plates being tightly connected to said profile rail; and d. the other horizontal longitudinal edge of each of said plates being loosely connected with said support
Claim 2
Dependent Claim
78 words
A housing for a monorail girder mounting electrical rails, said housing including a. cantilever bracket means supporting a plurality of vertical support plates from said girder; b. an elongated longitudinally extending profile rail mounted to said support plates proximately of said electric rails; c. one horizontal longitudinal edge of each of said plates being tightly connected to said profile rail; and d. the other horizontal longitudinal edge of each of said plates being loosely connected with said support
Claim 3
Dependent Claim
21 words
A housing in accordance with claim 1, in which a. said profile rail is provided with a plurality of parallel grooves.
Claim 4
Dependent Claim
29 words
A housing in accordance with claim 2, in which a. a slot means for a suspended auxiliary profile rail is formed in said profile rail horizontally below said grooves.
Claim 5
Dependent Claim
34 words
A housing in accordance with claim 3, in which a. a ratchet-like projection extends into the slot means; b. a pawl-like projection of a suspended auxiliary profile rail lockingly cooperates with said ratchet-like projection.
Claim 6
Dependent Claim
28 words
A housing in accordance with claim 1, in which a. a plate removed from its installed position may be secured to a neighboring, non-removable plate by fastening means.
Claim 7
Dependent Claim
37 words
A housing in accordance with claim 5, in which a. said fastening means consists of a tension spring cord provided at one end with a suspension clamp means and at the other end with a loop means.
Claim 8
Dependent Claim
24 words
A housing in accordance with claim 1, in which a. said longitudinal edges of the plates remote from said profile rail carry protective cushions.
Claim 9
Dependent Claim
66 words
A housing in accordance with claim 1, in which a. a rotary snap fastening means is provided at said support plate to clamp said housing plates; b. said snap fastening means including spreadable contracting spring means which engage retaining surfaces of a flattened, cylindrical, pointed expanding mandrel, the end of which mandrel projects through said housing plate; c. said projecting end including a screwdriver slot means.
Claim 10
Dependent Claim
30 words
A housing in accordance with claim 1, in which a. said profile rail includes two tight main grooves, and two auxiliary grooves for supporting said upper and lower housing plates.
Claim 11
Dependent Claim
26 words
A housing in accordance with claim 9, in which a. said profile rail includes a beaded rim means for top-supporting upper lips of said lower plates.
Claim 12
Dependent Claim
24 words
A housing in accordance with claim 9, in which a. a suspended auxiliary profile rail may be inserted in one of said auxiliary grooves.
Claim 13
Dependent Claim
66 words
A housing in accordance with claim 11, in which a. a vertical leg of said auxiliary profile rail is seated in one of said auxiliary grooves; b. said auxiliary profile rail including a portion offset above the upper lip of the lower plate; c. said auxiliary profile rail is provided with a leg terminating in a rim for hanging a removed one of said lower plates.
Claim 14
Dependent Claim
49 words
A housing in accordance with claim 9, in which a. a sealing profile is supported in one of the auxiliary grooves of the profile rail and includes an upper seal lip resting at the upper plate and a lower seal lip resting on the lip of the lower plate.
Claim 15
Dependent Claim
38 words
A housing in accordance with claim 1, in which a. said support plates have contact surfaces and a rear clamping surface for the plates in installed position and a downward-projecting rear clamping tab for engaging temporarily removed plates.
Claim 16
Dependent Claim
36 words
A housing in accordance with claim 1, in which a. the housing plates are seated in the tight connection of the profile rail; b. vibration absorber means are interposed between said profile rails and said plates.
Claim 17
Dependent Claim
17 words
A housing in accordance with claim 1, in which a. said plates are made of asbestos cement.
References Cited (Backward Citations)
US3319580A
Cited
US3511186A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-27 | 1980-01-26 | 1980-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-27 | 1984-01-26 | 1984-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-27 | 1988-01-26 | 1988-07-27 | $7700.00 | Window Closed / Lapsed |