Patent US4482589A successfully refreshed from Google Patents.
US4482589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal covered cellular PVC
Assignee: ADDITAINER A CORP OF SWEDEN AB
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Filing: 1982-12-01
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Granted: 1984-11-13
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Expires: 2002-12-01
Abstract
Abstract Self carrying platform of the sandwich type forming a closed goods accommodating space, preferably for refrigerator/freezer trailers, comprising a core (15) and surface layers (16) laminated thereto. The surface layers consist of metal plates and the core of a constructional cellular plastics on PVC-basis. At least one mounting plate (17) for a wheel shaft arrangement/demountable body framing is adhesively attached to the core.
Inventors
- 👤 Jan Widman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:53
CPC Classifications
B; B62; B62D; B62D33/00; B62D33/04; B62D33/048; Y; Y10; Y10S; Y10S220/00; Y10S220/902; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1355; Y10T428/1359; Y10T428/24; Y10T428/24479; Y10T428/24496; Y10T428/24504; Y10T428/2457; Y10T428/24612; Y10T428/249921; Y10T428/249953; Y10T428/249987; Y10T428/24999
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
100 words
A self carrying platform forming a closed goods accommodating space, preferably for refrigerator/freezer trailers, where at least the bottom of the goods accommodating space comprises a core of constructional cellular plastic and surface layers laminated to the core, the improvement being in that the core consists of a constructional cellular plastic of PVC having a density within the range of 60 to 100 kg/m 3 , preferably 80 kg/m 3 , relatively thin metal plates are attached to and cover both sides of the core, and a mounting plate for a wheel shaft arrangement is adhesively attached to said core.
Claim 2
Dependent Claim
100 words
A self carrying platform forming a closed goods accommodating space, preferably for refrigerator/freezer trailers, where at least the bottom of the goods accommodating space comprises a core of constructional cellular plastic and surface layers laminated to the core, the improvement being in that the core consists of a constructional cellular plastic of PVC having a density within the range of 60 to 100 kg/m 3 , preferably 80 kg/m 3 , relatively thin metal plates are attached to and cover both sides of the core, and a mounting plate for a wheel shaft arrangement is adhesively attached to said core.
Claim 3
Dependent Claim
25 words
The platform according to claim 1 wherein the mounting plate is arranged in close proximity to and symmetrically relative the centre line of the platform.
Claim 4
Dependent Claim
26 words
The platform according to claim 2, wherein the mounting plate is attached in a recess in the core between the lower surface layer and the core.
Claim 5
Dependent Claim
19 words
The platform according to claim 3, wherein holes for the wheel shaft arrangement are formed in the mounting plate.
Claim 6
Dependent Claim
19 words
The platform according to claim 4, wherein the wheel shaft arrangement is attachable by bolt joints in said holes.
Claim 7
Dependent Claim
15 words
The platform according to claim 1, wherein the mounting plate is a four sided frame.
Claim 8
Dependent Claim
22 words
The platform according to claim 6, wherein the mounting plate is attached to the core as well as the lower surface layer.
Claim 9
Dependent Claim
101 words
A self carrying platform forming a closed goods accommodating space, preferably for refrigerator/freezer trailers, where at least the bottom of the goods accommodating space comprises a core of constructional cellular plastic and surface layers laminated to the core, the improvement being in that the core consists of a constructional cellular plastic of PVC having a density within the range of 60 to 100 kg/m 3 , preferably 80 kg/m 3 , relatively thin metal plates are attached to and cover both sides of the core, and at least one mounting plate for a platform framing is attached adhesively to the core.
Claim 10
Dependent Claim
101 words
A self carrying platform forming a closed goods accommodating space, preferably for refrigerator/freezer trailers, where at least the bottom of the goods accommodating space comprises a core of constructional cellular plastic and surface layers laminated to the core, the improvement being in that the core consists of a constructional cellular plastic of PVC having a density within the range of 60 to 100 kg/m 3 , preferably 80 kg/m 3 , relatively thin metal plates are attached to and cover both sides of the core, and at least one mounting plate for a platform framing is attached adhesively to the core.
Claim 11
Dependent Claim
27 words
The platform according to claim 8, wherein the mounting plate comprises several metal strips extending generally parallel to and symmetrically relative the centre line of the platform.
Claim 12
Dependent Claim
24 words
The platform according to claim 9, wherein the strips are placed in recesses in the core between the lower surface layer and the core.
Claim 13
Dependent Claim
19 words
The platform according to claim 10, wherein holes for attachment of the platform framing are formed in the strip.
Claim 14
Dependent Claim
18 words
The platform according to claim 11, wherein the platform framing is attached by bolt joints in said holes.
Claim 15
Dependent Claim
19 words
The platform according to claim 8, wherein the platform framing is a framing for a so called demountable body.
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) | 1987-11-13 | 1988-05-14 | 1988-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-13 | 1992-05-14 | 1992-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-13 | 1996-05-14 | 1996-11-13 | $7700.00 | Window Closed / Lapsed |