Patent US4367724A successfully refreshed from Google Patents.
US4367724A
Expired / Lapsed
US
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Baker's ovens
Assignee: Moffat Ltd
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Filing: 1980-11-10
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Granted: 1983-01-11
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Expires: 2000-11-10
Abstract
Abstract A baker's oven of the type having an oven compartment with a loading door, and containing heating means and a horizontal support, rotatable about a vertical axis, for articles to be baked, has steaming means for producing steam within the oven compartment, such steaming means including a metal body in the upper part of the oven compartment and heated by the heating means, a passage in the body receiving, from any suitable source, water under pressure which is expelled in finely divided form through nozzles into the compartment, the nozzles being directed away from the doorway and in the direction of rotation of the rotary support.
Inventors
- 👤 Paul E. Willett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:16
CPC Classifications
A; A21; A21B; A21B1/00; A21B1/42; A21B1/44; A21B3/00; A21B3/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
178 words
A baker's oven comprising an upright baking compartment having a side wall loading door and top and bottom walls, stationary electrical heating elements attached to said top and bottom walls, a horizontal support for bake goods in the lower portion of said compartment, vertical axis rotational drive means for the horizontal support in said compartment, a horizontal radially disposed intermittently operated steam injection unit on the side wall of the compartment above said support and having steam injection nozzle means thereon for directing steam in a direction away from the loading door and along the rotational path of movement of said support, said steam injection unit being disposed within a recess formed in said side wall of said compartment, said side wall being cylindrical and said support for bake goods being annular and being at an elevation below said steam injection unit, and a vertically shiftable horizontal lid in said compartment in superposed relationship with the support for bake goods and adapted to vertically traverse the side wall recess containing the steam injection unit without interfering the latter.
Claim 2
Dependent Claim
178 words
A baker's oven comprising an upright baking compartment having a side wall loading door and top and bottom walls, stationary electrical heating elements attached to said top and bottom walls, a horizontal support for bake goods in the lower portion of said compartment, vertical axis rotational drive means for the horizontal support in said compartment, a horizontal radially disposed intermittently operated steam injection unit on the side wall of the compartment above said support and having steam injection nozzle means thereon for directing steam in a direction away from the loading door and along the rotational path of movement of said support, said steam injection unit being disposed within a recess formed in said side wall of said compartment, said side wall being cylindrical and said support for bake goods being annular and being at an elevation below said steam injection unit, and a vertically shiftable horizontal lid in said compartment in superposed relationship with the support for bake goods and adapted to vertically traverse the side wall recess containing the steam injection unit without interfering the latter.
Claim 3
Dependent Claim
160 words
A baker's oven comprising an upright baking compartment having a side wall loading door and substantially horizontal heat insulating top and bottom walls, stationary electrical heating elements attached to said top and bottom walls, a vertical shaft in said compartment, a substantially horizontal support for articles to be baked within the lower portion of the compartment and mounted on said shaft, means to drive said shaft for rotating said support, a substantially cylindrical heat insulating core disposed coaxially about the shaft and extending upwardly from said support to a position close to the top of said compartment and rotating with said support, said top and bottom walls being centrally closely engaged about said shaft, and a substantially horizontal radially disposed intermittently operated steam injection unit on the side wall of the compartment above said support and having steam injection nozzle means thereon for directing steam away from the loading door and along the rotational path of movement of said support.
Claim 4
Dependent Claim
160 words
A baker's oven comprising an upright baking compartment having a side wall loading door and substantially horizontal heat insulating top and bottom walls, stationary electrical heating elements attached to said top and bottom walls, a vertical shaft in said compartment, a substantially horizontal support for articles to be baked within the lower portion of the compartment and mounted on said shaft, means to drive said shaft for rotating said support, a substantially cylindrical heat insulating core disposed coaxially about the shaft and extending upwardly from said support to a position close to the top of said compartment and rotating with said support, said top and bottom walls being centrally closely engaged about said shaft, and a substantially horizontal radially disposed intermittently operated steam injection unit on the side wall of the compartment above said support and having steam injection nozzle means thereon for directing steam away from the loading door and along the rotational path of movement of said support.
Claim 5
Dependent Claim
94 words
A baker's oven as defined in claim 1, and said steam injection unit including an elongated metal body including a horizontal passage and being fixed within the top portion of said compartment above and radially across said support for bake goods, said support being annular and being disposed near the bottom wall of the compartment, and said injection nozzle means comprising spaced oblique axis nozzles on said metal body communicating with the horizontal passage of the metal body and directing steam downwardly at an oblique angle on bake goods moving with the horizontal support.
Claim 6
Dependent Claim
49 words
A baker's oven as defined in claim 1, and said steam injection unit being disposed within a recess formed in said side wall of the compartment, said side wall being cylindrical, and said support for bake goods being annular and being at an elevation below said steam injection unit.
Claim 7
Dependent Claim
42 words
A baker's oven as defined in claim 4, and a vertically shiftable horizontal lid in said compartment in superposed relationship with the support and adapted to vertically traverse said side wall recess containing the steam injection unit without interfering with the latter.
Claim 8
Dependent Claim
27 words
A baker's oven as defined in claim 2, and a shallow drainage tray in the bottom portion of the compartment near and below said substantially horizontal support.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-01-10 | 1986-07-12 | 1987-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-10 | 1990-07-12 | 1991-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-10 | 1994-07-12 | 1995-01-11 | $7700.00 | Window Closed / Lapsed |