US4407356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable quick chilling and heating appliance
Assignee: Individual
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Filing: 1981-03-09
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Granted: 1983-10-04
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Expires: 2001-03-09
Abstract
Abstract A portable appliance for quick chilling and heating of fluids, such as beverages, without dilution. The appliance comprises a pour-through, gravity operated heat exchanger, an intake reservoir connected to its upper end, and a discharge tap connected to its lower end. It operates without application of electric or mechanical power, and may be used both indoors or in the field.
Inventors
- 👤 Bruce E. DeLau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:23
CPC Classifications
F; F28; F28D; F28D1/00; F28D1/02; F28D1/0206; F28D1/0213; B; B67; B67D; B67D3/00; F25; F25D; F25D3/00; F25D3/02; F25D3/06; F25D3/08; F25D2303/00; F25D2303/08; F25D2303/081; F25D2303/084; F25D2303/0843; F25D2331/00; F25D2331/80; F25D2331/811; F25D2400/00; F25D2400/28; F25D31/00; F25D31/006; F25D31/007
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
230 words
A portable quick chilling and heating appliance for fluids such as beverages comprising, in combination: (a) a fluid tight container open at the top and adapted to rest upon a relatively flat support; (b) a coil of metallic tubing wound in a generally helical configuration about an upstanding axis coinciding substantially with that of said container and having an upper end portion and a lower end portion; (c) the convolutions of said helical configuration being of a diameter enabling them to be disposed in spaced relation with the inner peripheral wall of said container; (d) a plurality of rigid spacers fixed to the inner peripheral wall of said container and disposed in positive abutting engagement with said coil to retain same in spaced relation with said inner peripheral wall; (e) the upper end portion of said coil extending radially and axially of said coil so as to terminate at an intake situated above the top of said container; (f) the lower end portion of said coil extending radially outward and passing through the wall of said container in fluid tight relation therewith; (g) an outlet valve connected to said lower end portion of said coil; (h) a reservoir connected in fluid tight relation to said intake; (i) a support structure for said reservoir connected to said container and disposed in spaced relation above the helical configuration of said coil; and
Claim 2
Dependent Claim
230 words
A portable quick chilling and heating appliance for fluids such as beverages comprising, in combination: (a) a fluid tight container open at the top and adapted to rest upon a relatively flat support; (b) a coil of metallic tubing wound in a generally helical configuration about an upstanding axis coinciding substantially with that of said container and having an upper end portion and a lower end portion; (c) the convolutions of said helical configuration being of a diameter enabling them to be disposed in spaced relation with the inner peripheral wall of said container; (d) a plurality of rigid spacers fixed to the inner peripheral wall of said container and disposed in positive abutting engagement with said coil to retain same in spaced relation with said inner peripheral wall; (e) the upper end portion of said coil extending radially and axially of said coil so as to terminate at an intake situated above the top of said container; (f) the lower end portion of said coil extending radially outward and passing through the wall of said container in fluid tight relation therewith; (g) an outlet valve connected to said lower end portion of said coil; (h) a reservoir connected in fluid tight relation to said intake; (i) a support structure for said reservoir connected to said container and disposed in spaced relation above the helical configuration of said coil; and
Claim 3
Dependent Claim
47 words
(j) said support structure comprising a bridge connected across the open end of said container and defining therewith at least one aperture for loading ice or a heating medium into said container, said loading aperture being situated between said reservoir and the helical configuration of said coil.
Claim 4
Dependent Claim
47 words
(j) said support structure comprising a bridge connected across the open end of said container and defining therewith at least one aperture for loading ice or a heating medium into said container, said loading aperture being situated between said reservoir and the helical configuration of said coil.
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) | 1986-10-03 | 1987-04-04 | 1987-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-03 | 1991-04-04 | 1991-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-03 | 1995-04-04 | 1995-10-04 | $7700.00 | Window Closed / Lapsed |