US4226093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rapid-freezing apparatus for food products
Assignee: Individual
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Filing: 1979-01-19
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Granted: 1980-10-07
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Expires: 1999-01-19
Abstract
Abstract A rapid-freezing apparatus, comprising a refrigeration chamber accomodating a conveying mechanism for partly prepared and ready-made food products to be frozen, a fan and an air cooler. According to the invention, the conveying mechanism for partly prepared and ready-made food products is a multi-level conveyer comprising two vertical rotatable supports which drive a flexible traction member. Around the flexible traction member is mounted a helical monorail of the conveyer. Bearing upon the monorail are screen trays for products to be frozen, provided with rollers and attached to the flexible traction member by clamps.
Inventors
- 👤 Andrei M. Voitko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:46
CPC Classifications
F; F25; F25D; F25D25/00; F25D25/04; A; A23; A23B; A23B2/00; A23B2/80; A23B2/803; A23B7/00; A23B7/04; A23B7/0408; F25D2400/00; F25D2400/30
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
104 words
A rapid-freezing apparatus for food products, comprising a refrigeration chamber, conveying means for partly prepared and ready-made food products accommodated in said refrigeration chamber and including a multi-level conveyer comprising at least two rotatable vertical supports, a flexible traction member running about said rotatable vertical supports, a helical monorail extending about said rotatable vertical supports encompassed by said flexible traction member, a plurality of screen trays attached to said flexible traction member, said screen trays having rollers engaging said helical monorail for motion therealong, an air cooler, and a fan adapted for circulating the air passed through said air cooler through said refrigeration chamber.
Claim 2
Dependent Claim
104 words
A rapid-freezing apparatus for food products, comprising a refrigeration chamber, conveying means for partly prepared and ready-made food products accommodated in said refrigeration chamber and including a multi-level conveyer comprising at least two rotatable vertical supports, a flexible traction member running about said rotatable vertical supports, a helical monorail extending about said rotatable vertical supports encompassed by said flexible traction member, a plurality of screen trays attached to said flexible traction member, said screen trays having rollers engaging said helical monorail for motion therealong, an air cooler, and a fan adapted for circulating the air passed through said air cooler through said refrigeration chamber.
Claim 3
Dependent Claim
30 words
A rapid-freezing apparatus according to claim 1, wherein said flexible traction member comprises a rope and wherein said screen trays include a single clamp attaching said trays to said rope.
Claim 4
Dependent Claim
30 words
A rapid-freezing apparatus according to claim 2, wherein the side of said trays having said single clamp includes a projecting member positioned to contact said rope during linear motion thereof.
Claim 5
Dependent Claim
37 words
A rapid-freezing apparatus according to claim 1, wherein said flexible traction member has a run that extends outside of said refrigeration chamber so that said screen trays can be cleaned, loaded, and unloaded outside of said chamber.
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) | 1983-10-07 | 1984-04-07 | 1984-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-07 | 1988-04-07 | 1988-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-07 | 1992-04-07 | 1992-10-07 | $7700.00 | Window Closed / Lapsed |