US4955537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Model railroad track having a track bed
Assignee: ROSSLER ELFRIEDE
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Filing: 1989-01-30
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Granted: 1990-09-11
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Expires: 2009-01-30
Abstract
Abstract A track for model railroads comprises a track bed (11), which simulates, e.g., a superstructure which is provided with a ballast bed. The track bed consists of a bar-shaped bed section (11), which is made of elastically and/or plastically deformable and preferably elastoplastic material and has a cross-sectional profile which simulates that of a typical superstructure and preferably has the configuration of an isosceles trapezoid without the closing longer side thereof. The side of the profile represents the road surface for receiving the track grate (1, 9, 10), the legs (13, 14) constitute slopes. The top surface of the bed section (11) is provided with recesses (15), which are substantially complementary to the track grate (1) so that the latter can be inserted into said recesses to a depth corresponding to at least part of the height of the sleepers or ties. The bed section is provided with stiffeners (17, 18) on its underside.
Inventors
- 👤 Matjaz Bratovz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:13
CPC Classifications
A; A63; A63H; A63H19/00; A63H19/30
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
209 words
A model railroad system having a track bed which simulates a railroad superstucture of the type provided with a ballast bed, which comprises: an elongated track bed section constructed of a deformable material, an elongated support member extending along each side of said bed section and inclined downwardly and away from said bed section to provide support therefor, said support members being substantially equal in length such that said track bed has substantially an isosceles trapezoidal cross-sectional configuration less the closing longer side, a plurality of recesses provided in the upper surface of said track bed section, a track grate having a plurality of tracks and ties configured, dimensioned and arranged to complement said plurality of recesses provided in said track bed section so as to be positionable thereon and inserted into said recesses a depth corresponding substantially to the thickness of the track ties, stiffener means having a ladder-like configuration and positioned on the bottom surface of said bed section, said stiffener means having a stiffness greater than the stiffness of said bed section, a plurality of receptacles provided on the bottom surface of said bed section for reception of at least portions of said stiffener means to facilitate attachment of said stiffener means to said bed section.
Claim 2
Dependent Claim
209 words
A model railroad system having a track bed which simulates a railroad superstucture of the type provided with a ballast bed, which comprises: an elongated track bed section constructed of a deformable material, an elongated support member extending along each side of said bed section and inclined downwardly and away from said bed section to provide support therefor, said support members being substantially equal in length such that said track bed has substantially an isosceles trapezoidal cross-sectional configuration less the closing longer side, a plurality of recesses provided in the upper surface of said track bed section, a track grate having a plurality of tracks and ties configured, dimensioned and arranged to complement said plurality of recesses provided in said track bed section so as to be positionable thereon and inserted into said recesses a depth corresponding substantially to the thickness of the track ties, stiffener means having a ladder-like configuration and positioned on the bottom surface of said bed section, said stiffener means having a stiffness greater than the stiffness of said bed section, a plurality of receptacles provided on the bottom surface of said bed section for reception of at least portions of said stiffener means to facilitate attachment of said stiffener means to said bed section.
Claim 3
Dependent Claim
23 words
The model railroad system according to claim 1, wherein said stiffener means comprises bar-shaped elements joined to the body of said bed section.
Claim 4
Dependent Claim
40 words
The model railroad system according to claim 2, wherein said track bed section comprises at least two parallel ribs arranged in pairs of the under-side of said bed section adjacent to the ends of the recesses which receive said ties.
Claim 5
Dependent Claim
35 words
The model railroad system according to claim 1, wherein side bars of said ladderlike stiffener means are provided with interrupting gaps along mutually opposite sides of the stiffener means and in selected regions between rungs.
Claim 6
Dependent Claim
31 words
The model railroad system according to claim 4 wherein said interrupting gaps are provided in said selected regions which alternate with the gaps along the opposite sides of said stiffener means.
Claim 7
Dependent Claim
44 words
The model railroad system according to claim 1 wherein said bed section is provided with parallel ribs arranged in pairs, and said support members are provided with approximately complementary riblike parts adapted to be slidably inserted therebetween and to interlock with said parallel ribs.
Claim 8
Dependent Claim
40 words
The model railroad system according to claim 1 wherein said track bed comprises a central part for receiving said track grate and of side parts which simulate the slopes thereof and are adapted to be joined to said central part.
Claim 9
Dependent Claim
34 words
The model railroad system according to claim 1 wherein the spacing of side bars of said ladderlike stiffener means matches the distance between longitudinally extending ribs provided on the underside of said bed section.
Claim 10
Dependent Claim
22 words
the model railroad system according to claim 1 wherein said bed section is approximately equal in length to said track grate section.
Claim 11
Dependent Claim
47 words
The model railroad system according to claim 1 wherein said ladderlike stiffener means is provided on one side thereof with pins having a predetermined spacing and extendable through bores in said bed section and are non-positively held in correspondingly positioned and dimensioned bores of said track grate.
Claim 12
Dependent Claim
20 words
The model railroad system according to claim 1 wherein said track bed is provided on the underside with trim lines.
Claim 13
Dependent Claim
48 words
The model railroad system according to claim 11 wherein said trim lines extend obliquely from the bottom edge of said support members to the ends of said bed section and adjoin the outside surfaces of mutually parallel stiffening ribs formed on the under-side of said track bed section.
Claim 14
Dependent Claim
30 words
The model railroad system according to claim 11 wherein said trim lines adjoin on the outside of and parallel to stiffening ribs formed on the under-side of said bed section.
Claim 15
Dependent Claim
14 words
The model railroad system according to claim 11 wherein said trim lines comprise grooves.
Claim 16
Dependent Claim
37 words
The model railroad system according to claim 1, wherein the ends of side bars of said ladderlike stiffener means are provided with mutually complementary coupling elements having means to be coupled by being interfitted to each other.
Claim 17
Dependent Claim
28 words
The model railroad system according to claim 15 said coupling elements comprise forked elements having enlarged portions on the inside of their legs and corresponding complementary arrowhead-shaped lugs.
Claim 18
Dependent Claim
40 words
The model railroad system according to claim 15 wherein adapters are provided with said coupling elements, said adapters being provided in different lengths and adapted to be connected by profiled coupling elements to the ends of said ladderlike stiffener means.
Claim 19
Dependent Claim
47 words
The moedl railroad system according to claim 1, wherein individual rungs of said ladderlike stiffener means are spaced apart and are provided with bushings having bores which are aligned with bores correspondingly positioned in said bed section and with bores in said ties of said track grate.
Claim 20
Dependent Claim
40 words
The model railroad system according to claim 18, wherein said bushings are secured in at least one of shell-like and dual shell-like retaining elements integrally joined to the underside of said bed section and which are concentric to said bores.
Claim 21
Dependent Claim
27 words
The model railroad system according to claim 1 wherein said ladderlike stiffening means is provided with at least one portion defining a compartment for accommodating actuator means.
Claim 22
Dependent Claim
24 words
The model railroad system according to claim 1 wherein said ribs or bar-shaped elements are integrally joined to the body of said bed section.
Claim 23
Dependent Claim
164 words
The model railraod system having a track bed which simulates a railroad superstructure which comprises: a track bed having a generally elongated bed section constructed of a deformable material, the bottom surface of said bed section being provided with means for reception of stiffening means, an elongated support member extending along each side of said bed section and inclined downwardly and away from said bed section to provide support for said bed section, a plurality of recesses provided in the top section of said bed section, a track grate having a plurality of tracks and ties configured and dimensioned to be positioned atop said track bed and inserted into said recesses a depth at least equal substantially to the thickness of said ties, stiffening means provided on the bottom surface of said bed section, said stiffening means having at least a pair of elongated members interconnected by generally transversely extending members and having a stiffness generally greater than the stiffness of said bed section.
Claim 24
Dependent Claim
164 words
The model railraod system having a track bed which simulates a railroad superstructure which comprises: a track bed having a generally elongated bed section constructed of a deformable material, the bottom surface of said bed section being provided with means for reception of stiffening means, an elongated support member extending along each side of said bed section and inclined downwardly and away from said bed section to provide support for said bed section, a plurality of recesses provided in the top section of said bed section, a track grate having a plurality of tracks and ties configured and dimensioned to be positioned atop said track bed and inserted into said recesses a depth at least equal substantially to the thickness of said ties, stiffening means provided on the bottom surface of said bed section, said stiffening means having at least a pair of elongated members interconnected by generally transversely extending members and having a stiffness generally greater than the stiffness of said bed section.
Claim 25
Dependent Claim
166 words
A model railroad system having a track bed which simulates a railroad superstructure which comprises: a track bed having a generally elongated bed section constructed of a deformable material, the bottom surface of said bed section being provided with means for reception of stiffening means, an elongated support member extending along each side of said bed section inclined downwardly and away from said bed section to provide support for said bed section, a plurality of recesses provided in the top section of said bed section, a track grate having a plurality of tracks and ties configured and dimensioned to be positioned atop said track bed and inserted into said recesses a depth at least equal substantially to the thickness of said ties, a ladderlike profiled stiffening member provided on the bottom surface of said bed section and having a stiffness greater than the stiffness of said bed section, said ladderlike stiffening member being provided with at least one portion defining a compartment for accommodating actuator means.
Claim 26
Dependent Claim
166 words
A model railroad system having a track bed which simulates a railroad superstructure which comprises: a track bed having a generally elongated bed section constructed of a deformable material, the bottom surface of said bed section being provided with means for reception of stiffening means, an elongated support member extending along each side of said bed section inclined downwardly and away from said bed section to provide support for said bed section, a plurality of recesses provided in the top section of said bed section, a track grate having a plurality of tracks and ties configured and dimensioned to be positioned atop said track bed and inserted into said recesses a depth at least equal substantially to the thickness of said ties, a ladderlike profiled stiffening member provided on the bottom surface of said bed section and having a stiffness greater than the stiffness of said bed section, said ladderlike stiffening member being provided with at least one portion defining a compartment for accommodating actuator means.
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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) | 1993-09-10 | 1994-03-12 | 1994-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-10 | 1998-03-12 | 1998-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-10 | 2002-03-12 | 2002-09-11 | $7700.00 | Window Closed / Lapsed |