US3746160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetically sealed shipping package and method of preparing same
Assignee: WR Grace and Co
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Filing: 1971-01-21
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Granted: 1973-07-17
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Expires: 1991-01-21
Abstract
Abstract A hermetically sealed shipping container particularly suitable for shipping hazardous liquids is formed by placing the liquid containers on a tray, wrapping the tube and containers in a longitudinally sealed tube of monoaxially oriented and heatshrinkable film with the film extending beyond the ends of the tray, shrinking the film tightly around the containers and tray, and thereafter applying clips to the shrunken tube openings at either end of the package to seal the package. The resulting package holds the containers securely in place, is impervious to liquids, and is resistent to acids, bleaches, or the like.
Inventors
- 👤 H Thompson
- 👤 J Mautz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:53
CPC Classifications
B; B65; B65D; B65D71/00; B65D71/06; B65D71/08; B65D71/10; B65D2571/00; B65D2571/00006; B65D2571/00012; B65D2571/00018; B65D2571/00024; B65D2571/00043; B65D2571/00049
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
63 words
A hermetically sealed shipping package comprising: a. a supporting member; b. a plurality of objects carried by said supporting member; c. a tube of heat shrunken, monoaxially oriented film securely holding said objects on said supporting member, each end of said tube being shrunken to cover the end areas of said package; and, d. sealing means hermetically enclosing each end of said tube.
Claim 2
Dependent Claim
63 words
A hermetically sealed shipping package comprising: a. a supporting member; b. a plurality of objects carried by said supporting member; c. a tube of heat shrunken, monoaxially oriented film securely holding said objects on said supporting member, each end of said tube being shrunken to cover the end areas of said package; and, d. sealing means hermetically enclosing each end of said tube.
Claim 3
Dependent Claim
12 words
The package of claim 1 wherein the supporting member is a tray.
Claim 4
Dependent Claim
17 words
The shipping package of claim 2 wherein said tray has at least one load carrying protective divider.
Claim 5
Dependent Claim
14 words
The shipping package of claim 1 wherein the film is cross-linked, monoaxially oriented polyethylene.
Claim 6
Dependent Claim
122 words
A process for making a hermetically sealed shipping package from shrinkable film without a vacuum chamber or deflate hole in said film comprising the steps of: a. placing a plurality of objects on a supporting member; b. enveloping said objects and said supporting member in a tube of monoaxially oriented film, said film being shrinkable so that the radius of said tube decreases when heat is applied thereto, and each end of said tube extending beyond the objects and the supporting member to completely cover both of same; c. applying heat to said tube to shrink it tightly about said objects and supporting member so that the ends of said package are enclosed; and, d. hermetically sealing the ends of Said tube.
Claim 7
Dependent Claim
122 words
A process for making a hermetically sealed shipping package from shrinkable film without a vacuum chamber or deflate hole in said film comprising the steps of: a. placing a plurality of objects on a supporting member; b. enveloping said objects and said supporting member in a tube of monoaxially oriented film, said film being shrinkable so that the radius of said tube decreases when heat is applied thereto, and each end of said tube extending beyond the objects and the supporting member to completely cover both of same; c. applying heat to said tube to shrink it tightly about said objects and supporting member so that the ends of said package are enclosed; and, d. hermetically sealing the ends of Said tube.
Claim 8
Dependent Claim
13 words
The method of claim 5 wherein the tube is monoaxially oriented, cross-linked, polyethylene.
References Cited (Backward Citations)
US3093448A
Cited
US3358902A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-16 | 1977-01-15 | 1977-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-16 | 1981-01-15 | 1981-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-16 | 1985-01-15 | 1985-07-17 | $7700.00 | Window Closed / Lapsed |