US4765792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface mounted truck leveler
Assignee: Autoquip Corp
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Filing: 1987-03-23
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Granted: 1988-08-23
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Expires: 2007-03-23
Abstract
Abstract The leveler is positioned upon the flat top surface of the truck apron at some predetermined position in front of the dock. In the down position the surface cover plate of the leveler is parallel with the flat top surface of the truck apron. The lifting is provided by hydraulic cylinders secured to the leveler inwardly from the rear whereby avoiding interference with ancillary dock equipment. Thus, an aperture can be provided in the rear to accommodate a truck restraining device.
Inventors
- 👤 Charles W. Cherry
- 👤 William J. Benda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:43
CPC Classifications
B; B65; B65G; B65G69/00; B65G69/003; B65G69/006; B66; B66F; B66F7/00; B66F7/24; B66F7/243
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
196 words
A surface mounted truck leveler means positioned upon a flat truck apron means of relatively uniform elevation for bringing the bed of a truck level with a contiguous dock means, said loading dock equipped with ancillary dock devices and truck restraining means, comprising: an approach ramp means; a platform means being thin and strong enough to support said truck and also allow unrestricted side access; a primary pivot means securing said approach ramp means to at least one of said platform means and said truck apron means; a load supporting rear portion means having an end means and a centrally located aperture means with an unrestricted opening for accommodating said truck restraining means; a primary platform bolster means positioned between and secured to said platform means and said load supporting rear portion; and lifting support tower means including means having first and second end means, said first end means being pivotally connected to said primary platform bolster means and said second end means secured to said truck apron means whereby upon actuation said platform means, said load supporting rear portion and said primary platform bolster means pivot as a single unit around said primary pivot means.
Claim 2
Dependent Claim
196 words
A surface mounted truck leveler means positioned upon a flat truck apron means of relatively uniform elevation for bringing the bed of a truck level with a contiguous dock means, said loading dock equipped with ancillary dock devices and truck restraining means, comprising: an approach ramp means; a platform means being thin and strong enough to support said truck and also allow unrestricted side access; a primary pivot means securing said approach ramp means to at least one of said platform means and said truck apron means; a load supporting rear portion means having an end means and a centrally located aperture means with an unrestricted opening for accommodating said truck restraining means; a primary platform bolster means positioned between and secured to said platform means and said load supporting rear portion; and lifting support tower means including means having first and second end means, said first end means being pivotally connected to said primary platform bolster means and said second end means secured to said truck apron means whereby upon actuation said platform means, said load supporting rear portion and said primary platform bolster means pivot as a single unit around said primary pivot means.
Claim 3
Dependent Claim
57 words
The surface mounted truck leveler means of claim 1 wherein, said means having first and second end means are hydraulic cylinders, said truck means includes a set of tire means supporting the rear end thereof and said first end means of said hydraulic cylinder means are secured to said primary platform means at a point adjacent thereto.
Claim 4
Dependent Claim
34 words
The surface mounted truck leveler means of claim 1 wherein said primary platform bolster means includes a horizontally extending U-shaped channel means having a width of about 24 inches, plus or minus 6 inches.
Claim 5
Dependent Claim
51 words
The surface mounted truck leveler means of claim 1 wherein: said platform means has a top surface means, said load supporting rear portion has a top surface means and said primary platform bolster has a top surface means, each of said top surface means lying in the same horizontally extending plane.
Claim 6
Dependent Claim
50 words
The surface mounted truck leveler means of claim 4 wherein: said platform means has a bottom surface means, said load-supporting rear portion has a bottom surface means and said primary platform bolster has a bottom surface means, each of said bottom surface means lying in the same horizontally extending plane.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-08-23 | 1992-02-22 | 1992-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-23 | 1996-02-22 | 1996-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-23 | 2000-02-22 | 2000-08-23 | $7700.00 | Window Closed / Lapsed |