US3660188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
A method of recycling and reconditioning a metal shipping container
Assignee: Inland Steel Co
•
Filing: 1969-10-24
•
Granted: 1972-05-02
•
Expires: 1989-10-24
Abstract
Abstract A method of recycling a drum shaped metal shipping container which has at least two parts in overlapping relationship, the overlapping portions of said parts being secured together in liquid tight relation by an adhesive substance which when subjected to heat or an appropriate dissolving agent disintegrates so that said parts may be disassembled to make the container interior fully accessible for reconditioning. The adhesive substance is disintegrable and completely removable from the container parts without deforming the container parts or affecting the metallurgical properties of the parts.
Inventors
- 👤 Oscar J Van Leer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:27
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/50; B29C66/51; B29C66/54; B29C65/00; B29C65/48; B29C65/4805; B29C65/481; B29C65/4815; B29C65/483; B29C65/4835; B29C65/50; B29C65/5042; B29C65/76; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/13; B29C66/131; B29C66/135; B29C66/1352; B29C66/53; B29C66/534; B29C66/5344; B29C66/543; B29C66/5432; B29C66/61; B29C66/612; B65; B65D; B65D7/00; B65D7/02; B65D7/04; B65D7/045; B65D7/12; B65D7/34; B65D7/38; B29L; B29L2031/00; B29L2031/712; B29L2031/7154
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
32 words
The method of claim 1 in which said adhesive is disintegrated by heating said adhesive to a temperature below that which affects the metallic strength and flexibility of said adjacent container parts.
Claim 2
Dependent Claim
23 words
The method of claim 2 in which said adhesive is disintegrated by heating it to a temperature not in excess of 600* C.
Claim 3
Dependent Claim
25 words
The method of claim 2 in which heating to disintegrate said adhesive is limited substantially to the overlapping portions of said parts and said adhesive.
Claim 4
Dependent Claim
45 words
The method of claim 1 including applying a protective coating substance to the interior of said container parts after cleaning of said parts and prior to applying a fresh adhesive coating, and applying said adhesive and reuniting said parts without destroying said protective coating substance.
Claim 5
Dependent Claim
18 words
The method of claim 2 in which an expandable polyethylene adhesive is applied to said overlapping container portions.
References Cited (Backward Citations)
US1461729A
Cited
US2424188A
Cited
US2936261A
Cited
US2943386A
Cited
GB884225A
Cited
US3111419A
Cited
US3370737A
Cited
US3454179A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |