US3643864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railroad grade crossing
Assignee: Individual
•
Filing: 1969-11-18
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Granted: 1972-02-22
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Expires: 1989-11-18
Abstract
Abstract A novel railroad grade crossing is disclosed comprising elongated support members secured to each side of each rail and substantially complementing the rail profile. Resting upon the support members and secured thereto, are filler plate members which extend between the two rails and outwardly from either rail. Inasmuch as the filler plate members do not directly contact the rail, and therefore do not need to be elaborately profiled, the filler plate members may be constructed of concrete, thereby effecting a great cost saving over known castiron filler plates.
Inventors
- 👤 Hans Ziegler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:56
CPC Classifications
E; E01; E01C; E01C9/00; E01C9/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
294 words
A railroad grade crossing for at least one pair of rails, each rail having a base portion and a head portion spaced from one another to define therebetween a predetermined lateral rail profile at each side thereof, with such rails secured to crossties at spaced intervals by attachment installations arranged along each rail, comprising at least one inner plate member bridging the region between the pair of rails; at least one outer plate member disposed to each side of the pair of rails; support means extending along and adjacent to each side of the rails and positioned between the attachment installations to form the only means of support for the portion of said plates positioned nearest tHe rails and forming the only support for the inner plate member, each said support means comprising an elongated form member formed of one-piece construction and extending from the base portion at least up to the head portion of the rail, each said form member has a first longitudinal side facing the rail, said first side conforming to the lateral rail profile and a second longitudinal side, said second longitudinal side having a receiving recess therein, each recess bounded at its lower region by a lower support surface extending substantially parallel to the plane formed by the pair of rails; each said plate member being provided with a laterally extending profile surface means for engaging and conforming to said receiving recess, each said profile surface means engages a receiving recess in a form member whereby each said inner plate member is supported only by said profile surface means along the sides thereof closest said pair of rails and each said outer plate member is supported on the side thereof closest a rail only by said profile surface means.
Claim 2
Dependent Claim
294 words
A railroad grade crossing for at least one pair of rails, each rail having a base portion and a head portion spaced from one another to define therebetween a predetermined lateral rail profile at each side thereof, with such rails secured to crossties at spaced intervals by attachment installations arranged along each rail, comprising at least one inner plate member bridging the region between the pair of rails; at least one outer plate member disposed to each side of the pair of rails; support means extending along and adjacent to each side of the rails and positioned between the attachment installations to form the only means of support for the portion of said plates positioned nearest tHe rails and forming the only support for the inner plate member, each said support means comprising an elongated form member formed of one-piece construction and extending from the base portion at least up to the head portion of the rail, each said form member has a first longitudinal side facing the rail, said first side conforming to the lateral rail profile and a second longitudinal side, said second longitudinal side having a receiving recess therein, each recess bounded at its lower region by a lower support surface extending substantially parallel to the plane formed by the pair of rails; each said plate member being provided with a laterally extending profile surface means for engaging and conforming to said receiving recess, each said profile surface means engages a receiving recess in a form member whereby each said inner plate member is supported only by said profile surface means along the sides thereof closest said pair of rails and each said outer plate member is supported on the side thereof closest a rail only by said profile surface means.
Claim 3
Dependent Claim
47 words
A railroad grade crossing as defined in claim 1, wherein said profile surface means of each plate member includes a lower surface likewise extending substantially parallel to the track and which bears upon said lower support surface of the associated form member into which it is inserted.
Claim 4
Dependent Claim
30 words
A railroad grade crossing as defined in claim 2, wherein said lower support surface of each receiving recess and said lower surface of each profile surface means extend substantially horizontally.
Claim 5
Dependent Claim
33 words
A railroad grade crossing as defined in claim 1, wherein said cooperating surface of said form members adjacent the associated rail possess a profile complementing the neighboring lateral rail profile of such rail.
Claim 6
Dependent Claim
40 words
A railroad grade crossing as defined in claim 1, wherein said plate members are recessed at the area of said attachment installations in order to render access to said receiving recesses for said profile surface means of said plate members.
Claim 7
Dependent Claim
27 words
A railroad grade crossing as defined in claim 1, wherein each of said inner plate members and each of said outer plat members is constructed of concrete.
Claim 8
Dependent Claim
32 words
A railroad grade crossing as defined in claim 1, wherein each of said inner plate members and each of said outer plate members comprises a peripheral iron frame means filled with concrete.
Claim 9
Dependent Claim
40 words
A railroad grade crossing as defined in claim 1, wherein each of said outer plate members, at the sides thereof opposite said rails, comprises vertical adjustment means for adjusting the elevation of the outer sides of said outer plate members.
Claim 10
Dependent Claim
27 words
A railroad grade crossing as defined in claim 8, wherein said vertical adjustment means comprise screw spindles cooperating with said plate members and with the track substructure.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-21 | 1975-08-23 | 1976-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-21 | 1979-08-23 | 1980-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-21 | 1983-08-23 | 1984-02-22 | $7700.00 | Window Closed / Lapsed |