US4669696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Levelling support structure for vehicle mounted refrigerator
Assignee: Individual
•
Filing: 1985-05-31
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Granted: 1987-06-02
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Expires: 2005-05-31
Abstract
Abstract A mounting structure for a vehicle refrigerator includes a pivoting mounting structure for securely mounting the refrigerator to the body structure of the vehicle for pivotally moving about at least two axes which are parallel to the longitudinal and transverse axis respectively of the vehicle and includes a universal pivoting mount with electrically driven mechanical jacks operable in selected combinations for tilting the refrigerator body about a selected one of the horizontally oriented longitudinal or transverse axis of the vehicle or an axis in between.
Inventors
- 👤 John R. Petta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:19
CPC Classifications
B; B60; B60N; B60N3/00; B60N3/10; B60N3/104; F; F16; F16M; F16M7/00; F25; F25D; F25D23/00; F25D23/10; F25D2323/00; F25D2323/0011
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
210 words
A levelling support apparatus for levelling a refrigerator or the like in a vehicle, said apparatus comprising: a support plate for supporting a refrigerator, a supporting surface, a single universal pivot means on said supporting surface attached to said plate directly beneath the center thereof in alignment with the center axis of said plate for supporting said plate and said refrigerator supported thereon for pivotal movement about substantially orthogonal horizontal first and second axes which are respectively generally parallel to the pitch and roll axes of the vehicle for levelling said plate and said refrigerator supported thereon independently of the vehicle; first and second power means each including a pair of levelling devices and each disposed on opposite sides of both of said first and second axes supporting the periphery of said plate on said supporting surface, a pair of levelling sensing means each operatively associated with a respective pair of said levelling devices, said first and second power means being operative simultaneously for pivoting said plate and said refrigerator supported thereon about a selected one of said first and second axes; and said first and second power means being operative independently for pivoting said plate and said refrigerator supported thereon about an axis intermediate said first and second axes.
Claim 2
Dependent Claim
210 words
A levelling support apparatus for levelling a refrigerator or the like in a vehicle, said apparatus comprising: a support plate for supporting a refrigerator, a supporting surface, a single universal pivot means on said supporting surface attached to said plate directly beneath the center thereof in alignment with the center axis of said plate for supporting said plate and said refrigerator supported thereon for pivotal movement about substantially orthogonal horizontal first and second axes which are respectively generally parallel to the pitch and roll axes of the vehicle for levelling said plate and said refrigerator supported thereon independently of the vehicle; first and second power means each including a pair of levelling devices and each disposed on opposite sides of both of said first and second axes supporting the periphery of said plate on said supporting surface, a pair of levelling sensing means each operatively associated with a respective pair of said levelling devices, said first and second power means being operative simultaneously for pivoting said plate and said refrigerator supported thereon about a selected one of said first and second axes; and said first and second power means being operative independently for pivoting said plate and said refrigerator supported thereon about an axis intermediate said first and second axes.
Claim 3
Dependent Claim
50 words
The levelling support apparatus of claim 1 wherein said first and second power means comprises a jack secured to said frame means underneath each corner of said refrigerator and secured to the floor of said vehicle, said jacks being operative in pairs disposed at diagonally opposite corners of said refrigerator.
Claim 4
Dependent Claim
13 words
The levelling support apparatus of claim 2 wherein said jacks are screw jacks.
Claim 5
Dependent Claim
13 words
The levelling support apparatus of claim 3 wherein said jacks are electrically powered.
Claim 6
Dependent Claim
20 words
The levelling support apparatus of claim 4 wherein said jacks are powered by an electrical circuit including levelling sensing switches.
Claim 7
Dependent Claim
15 words
The levelling apparatus of claim 3 wherein said screw jacks are powered by electrical motors.
Claim 8
Dependent Claim
21 words
The levelling apparatus of claim 6 wherein said electrical motors are powered by circuit means including first second level sensing switches.
References Cited (Backward Citations)
US3836162A
Cited
US4182506A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-01 | 1990-12-01 | 1991-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-01 | 1994-12-01 | 1995-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-01 | 1998-12-01 | 1999-06-02 | $7700.00 | Window Closed / Lapsed |