US3829654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically heated package
Assignee: Individual
•
Filing: 1973-05-23
•
Granted: 1974-08-13
•
Expires: 1993-05-23
Abstract
Abstract A dispensible container constructed for a single use incorporates a thin low voltage heating film with terminals accessible from outside and opening means permitting access to its contents is used as a package for a substance adapted to be heated and plastic in the sense of being sufficiently mobile to be removed from the container as soon as it has been sufficiently heated. The outer portion of the package may comprise means for directing most of the heat inside the package to heat the substance and its side walls may be stiffened by a stiff frame of light weight material of the stressed skin type.
Inventors
- 👤 P Eisler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:58
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/40; H05B3/54; H05B3/56; A; A47; A47J; A47J36/00; A47J36/02; A47J36/022; A47J39/00; A47J39/006; B; B65; B65D; B65D81/00; B65D81/34; B65D81/3476; F; F24; F24C; F24C7/00; H05B3/02; H05B3/06; H05B3/10; H05B3/12; H05B3/14; H05B3/146; H05B3/565
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
153 words
A package comprising in combination, a dispensable closed container constructed for a single use to hold a removable substance, a substance held in said container to be heated whilst supported within the container and to be removed when sufficiently heated, a thin low-voltage heating film comprising metallic foil on a thin electrically-insulating support disposed to prevent conductive contact of the film with the removable substance, the foil being shaped to form a meandering pattern of narrow conductors but having margins on two opposite edge portions of the pattern, the margins being wide compared with the narrow conductors of the pattern, the pattern being disposed inside the said container the said opposite margins providing terminals for the pattern and extending outside the container for connection to a current supply without removing said substance from said container, and the package being openable to permit access to the substance in the container after it is heated.
Claim 2
Dependent Claim
153 words
A package comprising in combination, a dispensable closed container constructed for a single use to hold a removable substance, a substance held in said container to be heated whilst supported within the container and to be removed when sufficiently heated, a thin low-voltage heating film comprising metallic foil on a thin electrically-insulating support disposed to prevent conductive contact of the film with the removable substance, the foil being shaped to form a meandering pattern of narrow conductors but having margins on two opposite edge portions of the pattern, the margins being wide compared with the narrow conductors of the pattern, the pattern being disposed inside the said container the said opposite margins providing terminals for the pattern and extending outside the container for connection to a current supply without removing said substance from said container, and the package being openable to permit access to the substance in the container after it is heated.
Claim 3
Dependent Claim
35 words
A package as defined in claim 1 including means whereby the container is openable for the removal of a part of the contained substance without impairing its ability to contain the remainder of the substance.
Claim 4
Dependent Claim
35 words
A package as defined in claim 1 wherein the package includes a compartment for containing a second substance and means are provided for dispensing batches of liquid from a storage vessel into said second compartment.
Claim 5
Dependent Claim
35 words
A package as defined in claim 1, wherein the film is made of a doubled piece of foil comprising a plain part and a patterned part with a layer of insulation between the two parts.
Claim 6
Dependent Claim
23 words
A package as defined in claim 1, wherein the container is of cardboard slotted and creased to be folded into a receptacle shape.
Claim 7
Dependent Claim
19 words
A package as defined in claim 1 having an integral closure with the heating film extending into the closure.
Claim 8
Dependent Claim
30 words
A package As defined in claim 6 wherein the terminals are folded inside and the lid sealed so that the seal must be broken to obtain access to the terminals.
Claim 9
Dependent Claim
21 words
A package as defined in claim 1 including means for varying the shape of the container when said substance is therein.
Claim 10
Dependent Claim
15 words
A package as defined in claim 1 providing a substantially closed receptacle for retaining liquid.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |