Patent US4253699A successfully refreshed from Google Patents.
US4253699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dropped floor motor home construction
Assignee: Individual
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Filing: 1979-07-05
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Granted: 1981-03-03
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Expires: 1999-07-05
Abstract
Abstract The improvement in motor home construction using a conventional height van vehicle, to provide greater dropped floor area and convenience, and which includes removing a section of the van floor over and on one side of the vehicle drive shaft to provide a floor opening exposing the drive shaft, prefabricating a pan member to fit said floor opening and cover said drive shaft, and having said pan member formed to provide a step covering over the drive shaft, a recessed area for greater toe clearance and turning ease, and structural reinforcement of interrupted frame members without a material change in the shaft and road clearances otherwise obtained.
Inventors
- 👤 Ronald R. Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:03
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/32
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
183 words
In a conventional height van vehicle, modified for motor home use, and having a forwardly mounted vehicle engine and a drive shaft extended rearwardly therefrom and under the van floor, the improvement in dropped floor construction, for providing greater head room, comprising; removing a given width and length of the van floor and such sections of intermediate and main cross frame members as extend thereunder, said van floor being removed immediately over and to one side of said drive shaft for providing a floor opening having said drive shaft exposed and extending along one side thereof removing an additional section of the van floor, and such sections of the main frame member as extend thereacross, for enlarging said floor opening at one end thereof and having it extend towards the door wall of said van vehicle, and a prefabricated pan member formed to fit said floor opening and its side extension to provide a dropped floor area alongside said drive shaft and a step covering thereover, said step covering providing protection for said drive shaft and structural reinforcement lengthwise for said pan member.
Claim 2
Dependent Claim
183 words
In a conventional height van vehicle, modified for motor home use, and having a forwardly mounted vehicle engine and a drive shaft extended rearwardly therefrom and under the van floor, the improvement in dropped floor construction, for providing greater head room, comprising; removing a given width and length of the van floor and such sections of intermediate and main cross frame members as extend thereunder, said van floor being removed immediately over and to one side of said drive shaft for providing a floor opening having said drive shaft exposed and extending along one side thereof removing an additional section of the van floor, and such sections of the main frame member as extend thereacross, for enlarging said floor opening at one end thereof and having it extend towards the door wall of said van vehicle, and a prefabricated pan member formed to fit said floor opening and its side extension to provide a dropped floor area alongside said drive shaft and a step covering thereover, said step covering providing protection for said drive shaft and structural reinforcement lengthwise for said pan member.
Claim 3
Dependent Claim
95 words
The dropped floor construction for conventional height van vehicles as provided by claim 1, said pan member having the side wall thereof, next adjacent and over said step, being formed to have a flanged edge for engagement with and being welded to the van floor, said side wall being also formed to a depth for butt end welding to the intermediate and main cross frame members for providing a structural cross member therebetween, and said step covering being formed immediately therebeneath and providing successive right angle structural reinforcements the full length of said pan member.
Claim 4
Dependent Claim
56 words
The dropped floor construction for convention height van vehicles, as provided by claim 1, said pan member being formed with an outboard side wall thereof for fixed engagement with a fore and aft frame member on the outboard side thereof to provide added toe turning clearance under said frame member and within said dropped floor area.
Claim 5
Dependent Claim
55 words
The dropped floor construction for conventional height van vehicles, as provided by claim 1, said step covering being provided at a relative height over said drive shaft approximating that of regular frame cross members to allow for engineered clearance and having a width near half again that of the width of the dropped floor area.
Claim 6
Dependent Claim
95 words
The dropped floor constructional height van vehicles as provided by claim 1, said pan member being formed with an outboard side wall thereof for fixed engagement with a fore and aft frame member on the outboard side thereof to provide added toe turning clearance under said frame member and within said dropped floor area. said step covering being provided at a relative height over said drive shaft approximating that of regular frame cross members to allow for engineered clearance and having a width near half again that of the width of the dropped floor area.
Claim 7
Dependent Claim
178 words
The dropped floor construction for conventional height van vehicles, as provided by claim 1, said pan member having the side wall thereof, next adjacent and over said step, being formed to have a flanged edge for engagement with and being welded to the van floor, said side wall being also formed to a depth for butt end welding to the intermediate and main cross frame members for providing a structural cross member therebetween, and said step covering being formed immediately therebeneath and providing successive right angle structural reinforcements the full length of said pan member, said pan member being formed with an outboard side wall thereof for fixed engagement with a fore and aft frame member on the outboard side thereof to provide added toe turning clearance under said frame member and within said dropped floor area, said step covering being provided at a relative height over said drive shaft approximating that of regular frame cross members to allow for engineered clearance and having a width near half again that of the width of the dropped floor area.
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) | 1984-03-02 | 1984-09-01 | 1985-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-02 | 1988-09-01 | 1989-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-02 | 1992-09-01 | 1993-03-03 | $7700.00 | Window Closed / Lapsed |