Patent US3672309A successfully refreshed from Google Patents.
US3672309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welded light alloy car construction
Assignee: Pullman Standard Inc
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Filing: 1970-07-13
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Granted: 1972-06-27
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Expires: 1990-07-13
Abstract
Abstract A railway passenger vehicle construction including longitudinally extending extruded wall portions having interlocking and abutting portions producing a smooth outer surface having a curvature eccentric with the curvature of the vehicle inner wall to improve the aerodynamic and structural properties of the vehicle walls. Adjacent extruded members are attached as by a weldment on their inside portions in a manner to prevent buckling and provide a finished external surface free of blemishes from weldments or other fastening means.
Inventors
- 👤 William Van Der Sluys
- 👤 Thomas J O'neill
- 👤 Norman M Szala
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:17
CPC Classifications
B; B61; B61D; B61D17/00; B61D17/02; Y; Y02; Y02T; Y02T30/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
140 words
A railway vehicle body of light alloy welded construction supported on spaced trucks and having a skeletal framing structure and spaced side wall units, said vehicle body including: longitudinally extending wall portions forming an exterior wall of said vehicle, each wall portion including rib portions extending inwardly of the vehicle toward said skeletal framing structure, said rib portions forming attaching means for securing the wall portions to the vehicle skeletal structure, said wall portions being attached to said skeletal structure and said inwardly extending rib portions having web portions spacing the wall portions from the skeletal structure to thereby provide wall sections spaced from the vehicle skeletal framing structure, said rib portions including a flange portion for attachment of the associated wall portion to said skeletal framing structure of the railway vehicle, said wall portions being an extruded aluminum alloy.
Claim 2
Dependent Claim
140 words
A railway vehicle body of light alloy welded construction supported on spaced trucks and having a skeletal framing structure and spaced side wall units, said vehicle body including: longitudinally extending wall portions forming an exterior wall of said vehicle, each wall portion including rib portions extending inwardly of the vehicle toward said skeletal framing structure, said rib portions forming attaching means for securing the wall portions to the vehicle skeletal structure, said wall portions being attached to said skeletal structure and said inwardly extending rib portions having web portions spacing the wall portions from the skeletal structure to thereby provide wall sections spaced from the vehicle skeletal framing structure, said rib portions including a flange portion for attachment of the associated wall portion to said skeletal framing structure of the railway vehicle, said wall portions being an extruded aluminum alloy.
Claim 3
Dependent Claim
86 words
The invention accoRding to claim 1, and said exterior wall of the vehicle including a plurality of vertically stacked adjacent wall portions having interlocking portions forming a continuous smooth outside wall surface, said interlocking portion including a protruding portion on a wall portion insertable in an adjacent wall portion, said interlocking portion also including an abutting tab member and said adjacent wall portion having an inwardly extending rib connecting with said tab member to thereby provide an attachment point spaced from said smooth outside wall surface.
Claim 4
Dependent Claim
29 words
The invention according to claim 1, and said web portions being of varying transverse depths about the skeletal structure to produce an outwardly bowed curvature of said wall sections.
Claim 5
Dependent Claim
55 words
The invention according to claim 1, and said skeletal framing structure including vertically extending arcuate side wall posts having inner and outer concentric flange portions, said rib portions attached to said outer flange portion as by a weld to thereby produce an outer wall structure having a curvature eccentric with the arcuate side wall posts.
Claim 6
Dependent Claim
90 words
A railway passenger vehicle side wall construction including: longitudinally spaced and vertically extending arcuate wall posts having inner and outer flange portions, longitudinally extending vertically stacked and adjacent extruded wall portions having interlocking portions and having rib portions extending transversely therefrom toward and communicating with said wall posts, said rib portions including a flange portion fixedly attached to the outer flange portion of the associated vertical wall posts, said wall posts and said vertically stacked wall portions being fixedly attached and combining to form a curved hollow beam wall section.
Claim 7
Dependent Claim
90 words
A railway passenger vehicle side wall construction including: longitudinally spaced and vertically extending arcuate wall posts having inner and outer flange portions, longitudinally extending vertically stacked and adjacent extruded wall portions having interlocking portions and having rib portions extending transversely therefrom toward and communicating with said wall posts, said rib portions including a flange portion fixedly attached to the outer flange portion of the associated vertical wall posts, said wall posts and said vertically stacked wall portions being fixedly attached and combining to form a curved hollow beam wall section.
Claim 8
Dependent Claim
69 words
The invention according to claim 5, and said interlocking portions including a protruding portion on a wall portion insertable in a receiving portion of the adjacent wall portion thereby forming a continuous smooth outside wall surface, said interlocking portion including an abutting tab member and said adjacent wall portion having a rib portion connecting with said tab portion to provide an attachment joint spaced from said outside wall surface.
Claim 9
Dependent Claim
15 words
The invention according to claim 5, and said wall portions being an extruded aluminum alloy.
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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |