Patent US3738442A successfully refreshed from Google Patents.
US3738442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle chassis frame
Assignee: Leo Gottwald KG
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Filing: 1971-03-09
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Granted: 1973-06-12
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Expires: 1991-03-09
Abstract
Abstract A chassis frame for a vehicle, such as a truck crane, is formed of a pair of longitudinally extending, laterally spaced Z-shaped support members. Each support member has a vertically arranged web with a lower flange extending inwardly toward the other support member and an upper flange of greater width than the lower flange extending outwardly from the web. The lower flange extends generally perpendicularly to the web while the upper flange is composed of a first portion extending angularly upwardly and outwardly to a second portion which extends outwardly normal to the web and a third portion which forms the outer longitudinal edge of the upper flange and extends angularly downwardly from the outer end of the second portion. Vertical plates are secured to the inside of the web and are supported at their lower ends on the lower flange, these plates act as supports for members mounted on the chassis frame. With this chassis frame the drive motor of the vehicle can be supported on the lower flanges between the web of the support members.
Inventors
- 👤 P Eiler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:44
CPC Classifications
B; B62; B62D; B62D21/00; B62D21/18; B62D21/186; B66; B66C; B66C7/00; B66C2700/00; B66C2700/03; B66C2700/0321; B66C2700/0328; B66C2700/035
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
176 words
A chassis frame for a wheel mounted truck crane supporting a drive motor and a turntable support for the truck crane, comprises a pair of longitudinally extending laterally spaced generally Z-shaped support members, each said support member comprises a substantially vertically extending web, an upper flange extending transversely from the upper end of one side of said web and a lower flange extending transversely from the lower end of the opposite side of said web, said lower flange extending from said web in the direction toward the other said support member, said lower flange being narrower than said upper flange, and said support members arranged for supporting the drive motor in a position spaced laterally opposite said webs of said support members and mounted on said lower flanges thereof, wherein the improvement comprises that said upper flange comprises a first portion which relative to said web slopes angularly upwardly and outwardly from the upper end of said web and forms a support surface for the turntable support extending between the upper ends of said support member.
Claim 2
Dependent Claim
176 words
A chassis frame for a wheel mounted truck crane supporting a drive motor and a turntable support for the truck crane, comprises a pair of longitudinally extending laterally spaced generally Z-shaped support members, each said support member comprises a substantially vertically extending web, an upper flange extending transversely from the upper end of one side of said web and a lower flange extending transversely from the lower end of the opposite side of said web, said lower flange extending from said web in the direction toward the other said support member, said lower flange being narrower than said upper flange, and said support members arranged for supporting the drive motor in a position spaced laterally opposite said webs of said support members and mounted on said lower flanges thereof, wherein the improvement comprises that said upper flange comprises a first portion which relative to said web slopes angularly upwardly and outwardly from the upper end of said web and forms a support surface for the turntable support extending between the upper ends of said support member.
Claim 3
Dependent Claim
47 words
A chassis frame, as set forth in claim 1, wherein at least two substantially vertical plates are supported at their lower ends on the upper surface of said lower flange of each said support member and extend upwardly therefrom for affording additional support for the turntable support.
Claim 4
Dependent Claim
21 words
A chassis frame, as set forth in claim 1, wherein said webs of said support plates are disposed in parallel relationship.
Claim 5
Dependent Claim
89 words
A chassis frame, as set forth in claim 1, wherein said upper flange comprises a second portion extending outwardly from the outer end of said first portion which is spaced from said web, said second portion located above the wheel of the truck crane, and a third portion secured to the outer end of said second portion which is remote from said first portion and sloping outwardly over and downwardly toward but spaced upwardly from the wheels of said truck crane for providing protection for the truck crane wheels.
Claim 6
Dependent Claim
40 words
A chassis frame, as set forth in claim 4, wherein a box-shaped member is located at each of the opposite ends of said support member and said box-shaped member extends between and is secured to each of said support members.
Claim 7
Dependent Claim
25 words
A chassis frame, as set forth in claim 1, wherein said web and said upper and lower flanges are formed of a single monolithic section.
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) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |