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Patent US3752441A successfully refreshed from Google Patents.
US3752441A
Expired / Lapsed
US
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Vehicle wheel elevating and leveling device
Assignee: Individual
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Filing: 1971-10-20
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Granted: 1973-08-14
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Expires: 1991-10-20
Abstract
Abstract A wheel elevating, leveling and chocking device useful as (1) a lift and (2) a scotch (chock) for a camper wheel. It is of elongated stepped construction in that it embodies several steplike sections which are oriented in end-to-end alignment, are telescopingly united, and can be extended for ramp-like use and alternatively retracted and collapsed. The sections are hollow and block-like and are capable of being telescoped and compactly collapsed for convenient handling and storage. Each section is basically alike in that it comprises a vertically walled base portion providing a riser and a top horizontal wall or platform constituting a wheel seating tread. The thus oriented steps can be selectively individually used for ascending and descending requirements. The flanged bottom portions can be nested and stacked or extended into flush relationship at will.
Inventors
- 👤 J Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:31
CPC Classifications
B; B66; B66F; B66F7/00; B66F7/24; B66F7/243
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
151 words
A camper wheel elevating, leveling and chocking device comprising: a plurality of individual step-like sections, arranged in oriented alignment, said sections being telescopingly united and extended for use and collapsed and compactly retracted for convenient handling, use and storage when desired, each section embodying a base portion constituting a riser and embodying a complemental platform portion constituting a wheel seating tread, said sections being graduated in vertical height for selective wheel supporting use, said sections being hollow and box-like in construction, the base portion of each section embodying interconnected vertical walls marginally joined with and supporting a complemental horizontal wall constituting a wheel seating platform, the lower edge portions of opposed vertical side walls being provided with turned-in coplanar horizontal surface contacting flanges, the flanges carried by the respective sections being alike in construction coordinate in a common horizontal plane when the sections are extended to wheel accommodating and supporting relationship.
Claim 2
Dependent Claim
151 words
A camper wheel elevating, leveling and chocking device comprising: a plurality of individual step-like sections, arranged in oriented alignment, said sections being telescopingly united and extended for use and collapsed and compactly retracted for convenient handling, use and storage when desired, each section embodying a base portion constituting a riser and embodying a complemental platform portion constituting a wheel seating tread, said sections being graduated in vertical height for selective wheel supporting use, said sections being hollow and box-like in construction, the base portion of each section embodying interconnected vertical walls marginally joined with and supporting a complemental horizontal wall constituting a wheel seating platform, the lower edge portions of opposed vertical side walls being provided with turned-in coplanar horizontal surface contacting flanges, the flanges carried by the respective sections being alike in construction coordinate in a common horizontal plane when the sections are extended to wheel accommodating and supporting relationship.
Claim 3
Dependent Claim
45 words
The wheel elevating, leveling and chocking device defined in and according to claim 1, and wherein the platform portion of one of said sections is arcuately contoured to provide a concave nesting and retaining chock for the wheel which is caused to be seated therein.
Claim 4
Dependent Claim
76 words
The wheel elevating, leveling and chocking device defined in and according to claim 2, and, in combination, a section embracing strap having one end anchored on said one section and bridging over said concave chock and having a free end provided with a fastener, said fastener being separably connectible with a companion fastener fixed on another one of said sections in a manner to assemble and retain the sections nested together when they are telescopingly collapsed.
Claim 5
Dependent Claim
149 words
A camper wheel elevating, leveling and chocking device comprising several individual but companion step-like sections, namely, a first relatively high end section, a second relatively low end section, and a third intervening section situated between said first and second sections and graduated in height whereby it is lower in height than the first section and higher in height than the second section, said sections being hollow, rectangular in plan, and accordingly box-like in construction, said third section being proportioned and capable of being telescopically nested within the confines of the first section, each section embodying vertical walls defining a riser-like base and a horizontal top wall providing a platform and serving as a wheel seating tread, the lower edge of the vertical side walls of said sections having lateral turned-in surface contacting flanges, said flanges, when the several sections are extended for use, being in a common supporting plane.
Claim 6
Dependent Claim
149 words
A camper wheel elevating, leveling and chocking device comprising several individual but companion step-like sections, namely, a first relatively high end section, a second relatively low end section, and a third intervening section situated between said first and second sections and graduated in height whereby it is lower in height than the first section and higher in height than the second section, said sections being hollow, rectangular in plan, and accordingly box-like in construction, said third section being proportioned and capable of being telescopically nested within the confines of the first section, each section embodying vertical walls defining a riser-like base and a horizontal top wall providing a platform and serving as a wheel seating tread, the lower edge of the vertical side walls of said sections having lateral turned-in surface contacting flanges, said flanges, when the several sections are extended for use, being in a common supporting plane.
Claim 7
Dependent Claim
72 words
The camper wheel elevating, leveling and chocking device defined in and according to claim 4, and wherein the front walls of the base portions of the respective sections are provided with openings permitting extension and telescoping retraction of said sections, the upper corner portion of each front wall being inclined forwardly and downwardly to provide a sloping wheel ascending and descending ramp and also a limit stop shoulder for an adjacent wheel.
Claim 8
Dependent Claim
42 words
The camper wheel elevating, leveling and chocking device defined in and according to claim 5, and wherein said second and third sections are provided with upstanding stop lugs which function to check and limit the locale of said second and third sections.
Claim 9
Dependent Claim
122 words
A camper wheel elevating, leveling and chocking device comprising several individual but companion step-like sections, namely, a first relatively high end section, a second relatively low end section, and a third intervening section situated between said first and second sections and graduated in height whereby it is lower in height than the first section aNd higher in height than the second section, said sections being hollow, said third section being proportioned and telescopingly nested within the confines of the first section, each section embodying vertical walls defining a riser-like base and a horizontal top wall providing a platform and serving as a wheel seating tread, the lower edge of the vertical side walls of said sections having lateral turned-in surface contacting flanges.
Claim 10
Dependent Claim
122 words
A camper wheel elevating, leveling and chocking device comprising several individual but companion step-like sections, namely, a first relatively high end section, a second relatively low end section, and a third intervening section situated between said first and second sections and graduated in height whereby it is lower in height than the first section aNd higher in height than the second section, said sections being hollow, said third section being proportioned and telescopingly nested within the confines of the first section, each section embodying vertical walls defining a riser-like base and a horizontal top wall providing a platform and serving as a wheel seating tread, the lower edge of the vertical side walls of said sections having lateral turned-in surface contacting flanges.
References Cited (Backward Citations)
US2272334A
Cited
US3295829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |