US3735749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bun steamer injector
Assignee: TO RESTAURANT Tech Inc
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Filing: 1970-11-04
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Granted: 1973-05-29
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Expires: 1990-11-04
Abstract
Abstract Ame method and apparatus for injecting steam into buns. The stem injector includes a readily removable platen assembly which assembly defines a plurality of equally spaced steam injection orifices arranged in rows and columns. The platen assembly is specially configured to produce high quality steam. The buns are positioned on a perforated tray, the perforations of which coincide with the steam injection orifices. The steam is injected directly into the buns themselves through the perforations in the tray.
Inventors
- 👤 C Binks
- 👤 R Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:05
CPC Classifications
A; A21; A21B; A21B1/00; A21B1/02; A21B1/36
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
267 words
A steam injector comprising a frame assembly mounting a heated platen assembly comprising an expansive platen member and defining a water inlet communicating with an elongate series of steam generating chambers defined in the upper major surface of said platen member, said platen member further defining a plurality of steam injection channels in said upper major surface in communication with said water inlet but remote therefrom, said series of chambers being disposed between said inlet and said channels, baffle means between each pair of chambers in said series of chambers, said chambers being in communication through said baffle means, said platen assembly comprising means overlying said major surface and covering said chambers and channels to define closed chambers and channels and defining a plurality of rows and columns of steam injection orifices, the covering means and platen member thereby defining a continuous closed and sealed path between said inlet and said orifices in which water is introduced into a first chamber and steam issues from the steam ejection channels through said orifices and the steam and water are in continuous expansive contact therebetween, the contact with the platen member being with said major surface only, the steam injection orifices in said rows and columns being equidistantly and regularly spaced and being located directly above said steam injection channels only, means for injecting water into said water inlet, and means for heating said platen assembly to a temperature at which all of said water is converted into superheated steam in said chambers, whereby only superheated steam is introduced into said steam injection channels for discharge through said orifices.
Claim 2
Dependent Claim
267 words
A steam injector comprising a frame assembly mounting a heated platen assembly comprising an expansive platen member and defining a water inlet communicating with an elongate series of steam generating chambers defined in the upper major surface of said platen member, said platen member further defining a plurality of steam injection channels in said upper major surface in communication with said water inlet but remote therefrom, said series of chambers being disposed between said inlet and said channels, baffle means between each pair of chambers in said series of chambers, said chambers being in communication through said baffle means, said platen assembly comprising means overlying said major surface and covering said chambers and channels to define closed chambers and channels and defining a plurality of rows and columns of steam injection orifices, the covering means and platen member thereby defining a continuous closed and sealed path between said inlet and said orifices in which water is introduced into a first chamber and steam issues from the steam ejection channels through said orifices and the steam and water are in continuous expansive contact therebetween, the contact with the platen member being with said major surface only, the steam injection orifices in said rows and columns being equidistantly and regularly spaced and being located directly above said steam injection channels only, means for injecting water into said water inlet, and means for heating said platen assembly to a temperature at which all of said water is converted into superheated steam in said chambers, whereby only superheated steam is introduced into said steam injection channels for discharge through said orifices.
Claim 3
Dependent Claim
30 words
In the steam injector of claim 1 in which said series of chambers is at least three in number and there is a baffle means between each pair of chambers.
Claim 4
Dependent Claim
47 words
In the steam injector of claim 1 in which a last of said series of chambers is in communication with a said steam injection channel through a passage defined by said platen assembly, said passage being of a substantially lesser cross-sectional area than said steam injection channel.
Claim 5
Dependent Claim
32 words
In the steam injector of claim 1 in which said water injecting means comprises automatically resetting means for injecting a uniform quantity of water each time water is injected into said inlet.
Claim 6
Dependent Claim
65 words
In the steam injector of claim 1, further comprising a tray having a handle, said tray defining a plurality of equidistantly and regularly spaced perforations in rows and columns spaced to coincide with and to overlie said steam injection orifices, said perforations being larger in size than said steam orifices, said platen assembly providing means for positioning said tray with said orifices and perforations coincident.
Claim 7
Dependent Claim
28 words
In the steam injector of claim 4, in which said means for injecting a uniform quantity of water is a solenoid operated pressure regulating valve with flow control.
Claim 8
Dependent Claim
33 words
The steam injector Of claim 1 further comprising a pair of said series of chambers in communication with said inlet, each for receiving a portion of the water injected through the water inlet.
Claim 9
Dependent Claim
214 words
A steam injector comprising a heated platen assembly, said platen assembly including an expansive platen and a platen cover member removably and sealingly secured to and covering the major upper surface of said platen, and a cabinet, said platen assembly being marginally supported on said cabinet and being releasably secured to said cabinet centrally thereof only for ready removability, said platen assembly defining a water inlet communicating with a series of steam generating chambers defined in said major surface of said platen, said platen upper surface further defining a plurality of steam injection channels in communication with said water inlet but remote therefrom, said series of chambers being disposed between and communicating with said inlet and said channels along said major surface only to define with said platen cover member a continuous closed and sealed path between said cover member and said channels, said platen assembly further defining a plurality of steam injection orifices, said orifices being located directly above said steam injection channels only, means for injecting water into said water inlet, and means for heating said platen assembly to a temperature at which all of said water will be converted into superheated steam in said chambers, whereby only superheated steam is introduced into said steam injection channels for discharge through said orifices.
Claim 10
Dependent Claim
214 words
A steam injector comprising a heated platen assembly, said platen assembly including an expansive platen and a platen cover member removably and sealingly secured to and covering the major upper surface of said platen, and a cabinet, said platen assembly being marginally supported on said cabinet and being releasably secured to said cabinet centrally thereof only for ready removability, said platen assembly defining a water inlet communicating with a series of steam generating chambers defined in said major surface of said platen, said platen upper surface further defining a plurality of steam injection channels in communication with said water inlet but remote therefrom, said series of chambers being disposed between and communicating with said inlet and said channels along said major surface only to define with said platen cover member a continuous closed and sealed path between said cover member and said channels, said platen assembly further defining a plurality of steam injection orifices, said orifices being located directly above said steam injection channels only, means for injecting water into said water inlet, and means for heating said platen assembly to a temperature at which all of said water will be converted into superheated steam in said chambers, whereby only superheated steam is introduced into said steam injection channels for discharge through said orifices.
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) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |