Patent US4178843A successfully refreshed from Google Patents.
US4178843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable corn popper
Assignee: Hamilton Beach Brands Inc
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Filing: 1978-02-06
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Granted: 1979-12-18
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Expires: 1998-02-06
Abstract
Abstract An apparatus is provided for popping corn by heated air which is circulated in a cylindrical popping chamber having a vertical axis to provide a fluidized bed of swirling and circulating corn to be popped. As the corn is popped, it is lifted upwardly by the moving air and volume of popped corn to form a column of floating corn above the popping chamber and the popped corn is discharged through the open top of the chamber.
Inventors
- 👤 Steven B. Crabtree
- 👤 Hugh F. Groth
- 👤 Guilbert M. Hunt
- 👤 Thomas E. Lipinski
- 👤 James T. McMaster
- 👤 Guy R. Moffitt, Jr.
- 👤 Anthony D. Szpak
- 👤 Robert A. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:15
CPC Classifications
A; A23; A23L; A23L7/00; A23L7/10; A23L7/161; A23L7/174; A23L7/183; A23L7/187
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
154 words
An apparatus for popping corn by heated air comprising: a housing; means for heating air; a cylindrical popping chamber within said housing having its axis vertical, said chamber being open at the top and having its diameter larger at its upper portion than at its lower portion; means for flowing air in a generally circular path about the outside periphery of said chamber to facilitate heating of the air; and means for introducing heated air into the lower portion of said chamber to flow the air within the chamber into a generally circular path about said axis to provide a fluidized bed of corn to be popped moving in a generally circular path within said chamber; the air controlled to retain popped corn within said chamber to form a column of popped corn rising upwardly above said popping chamber and to be discharged out the open top of said chamber in a controlled manner.
Claim 2
Independent Claim
154 words
An apparatus for popping corn by heated air comprising: a housing; means for heating air; a cylindrical popping chamber within said housing having its axis vertical, said chamber being open at the top and having its diameter larger at its upper portion than at its lower portion; means for flowing air in a generally circular path about the outside periphery of said chamber to facilitate heating of the air; and means for introducing heated air into the lower portion of said chamber to flow the air within the chamber into a generally circular path about said axis to provide a fluidized bed of corn to be popped moving in a generally circular path within said chamber; the air controlled to retain popped corn within said chamber to form a column of popped corn rising upwardly above said popping chamber and to be discharged out the open top of said chamber in a controlled manner.
Claim 3
Dependent Claim
204 words
In an apparatus for popping corn by heated air and using said same air to transfer popped corn from said apparatus having a housing, means for heating air, a cylindrical popping chamber disposed with its axis in the vertical plane, a raised member projecting upwardly from the base of said chamber, and slanted vanes defining openings in said chamber near the bottom of said popping chamber and said vanes disposed for introducing heated air therethrough for following a circular path within said chamber, wherein the improvement comprises: popping chamber means open at its upper end and having a diameter at the upper end larger than the diameter of the popping chamber at said slanted vanes; means for flowing air in a generally circular path around the outside of said chamber to facilitate efficient heating of the air; and means for introducing heated air into said popping chamber to provide a fluidized bed of corn to be popped, said corn moving in a generally circular path within said chamber, and forming a floating column of popped corn rising upwardly above said popping chamber as the corn is being popped and discharging the popped corn in a controlled manner from the open end of said chamber.
Claim 4
Dependent Claim
204 words
In an apparatus for popping corn by heated air and using said same air to transfer popped corn from said apparatus having a housing, means for heating air, a cylindrical popping chamber disposed with its axis in the vertical plane, a raised member projecting upwardly from the base of said chamber, and slanted vanes defining openings in said chamber near the bottom of said popping chamber and said vanes disposed for introducing heated air therethrough for following a circular path within said chamber, wherein the improvement comprises: popping chamber means open at its upper end and having a diameter at the upper end larger than the diameter of the popping chamber at said slanted vanes; means for flowing air in a generally circular path around the outside of said chamber to facilitate efficient heating of the air; and means for introducing heated air into said popping chamber to provide a fluidized bed of corn to be popped, said corn moving in a generally circular path within said chamber, and forming a floating column of popped corn rising upwardly above said popping chamber as the corn is being popped and discharging the popped corn in a controlled manner from the open end of said chamber.
Claim 5
Dependent Claim
162 words
Apparatus for popping corn comprising: a cylindrical popping chamber having a vertical axis and an open top end for exit of popped corn therethrough, said chamber further having openings through its sidewall near the lower end thereof and slanted vanes in the openings for directing air into a circular path in the popping chamber, said chamber having a diameter at the top end larger than the diameter at the lower end; means for heating air; means for flowing air in a generally circular path about the outside periphery of said chamber to facilitate heating of the air; and means for blowing the heated air through said openings in the sidewall of the chamber inwardly into said chamber in a circular path as directed by said vanes to fluidize corn in the chamber so the corn will be popped by the heated air and will form a rising column of popped corn to be expelled through said open top end of the chamber.
Claim 6
Dependent Claim
162 words
Apparatus for popping corn comprising: a cylindrical popping chamber having a vertical axis and an open top end for exit of popped corn therethrough, said chamber further having openings through its sidewall near the lower end thereof and slanted vanes in the openings for directing air into a circular path in the popping chamber, said chamber having a diameter at the top end larger than the diameter at the lower end; means for heating air; means for flowing air in a generally circular path about the outside periphery of said chamber to facilitate heating of the air; and means for blowing the heated air through said openings in the sidewall of the chamber inwardly into said chamber in a circular path as directed by said vanes to fluidize corn in the chamber so the corn will be popped by the heated air and will form a rising column of popped corn to be expelled through said open top end of the chamber.
Claim 7
Independent Claim
151 words
An apparatus for popping corn by heated air comprising: a housing; means for heating air; a cylindrical popping chamber within said housing having its axis vertical, said chamber being open at the top and having its diameter larger at its upper portion than at its lower portion; means for introducing heated air into the lower portion of said chamber to flow the air within the chamber into a generally circular path about said axis to provide a fluidized bed of corn to be popped moving in a generally circular path within said chamber; the air controlled to retain popped corn within said chamber to form a column of popped corn rising upwardly above said popping chamber and to be discharged out the open top of said chamber in a controlled manner; and a means for providing a portion of heated air and directing the air to a container for heating comestibles.
Claim 8
Independent Claim
151 words
An apparatus for popping corn by heated air comprising: a housing; means for heating air; a cylindrical popping chamber within said housing having its axis vertical, said chamber being open at the top and having its diameter larger at its upper portion than at its lower portion; means for introducing heated air into the lower portion of said chamber to flow the air within the chamber into a generally circular path about said axis to provide a fluidized bed of corn to be popped moving in a generally circular path within said chamber; the air controlled to retain popped corn within said chamber to form a column of popped corn rising upwardly above said popping chamber and to be discharged out the open top of said chamber in a controlled manner; and a means for providing a portion of heated air and directing the air to a container for heating comestibles.
Claim 9
Independent Claim
175 words
An apparatus for popping corn by heated air comprising: a housing; means for heating air; a cylindrical popping chamber within said housing having its axis vertical, said chamber being open at the top and having its diameter larger at its upper portion than at its lower portion; means for introducing heated air into the lower portion of said chamber to flow the air within the chamber into a generally circular path about said axis to provide a fluidized bed of corn to be popped moving in a generally circular path within said chamber; the air controlled to retain popped corn within said chamber to form a column of popped corn rising upwardly above said popping chamber and to be discharged out the open top of said chamber in a controlled manner; and a means generally above said chamber for providing metered amounts of corn into said chamber and to permit continuous popping of corn, said means includes a container for holding an amount of corn and for dumping the corn substantially downwardly into said chamber.
Claim 10
Independent Claim
175 words
An apparatus for popping corn by heated air comprising: a housing; means for heating air; a cylindrical popping chamber within said housing having its axis vertical, said chamber being open at the top and having its diameter larger at its upper portion than at its lower portion; means for introducing heated air into the lower portion of said chamber to flow the air within the chamber into a generally circular path about said axis to provide a fluidized bed of corn to be popped moving in a generally circular path within said chamber; the air controlled to retain popped corn within said chamber to form a column of popped corn rising upwardly above said popping chamber and to be discharged out the open top of said chamber in a controlled manner; and a means generally above said chamber for providing metered amounts of corn into said chamber and to permit continuous popping of corn, said means includes a container for holding an amount of corn and for dumping the corn substantially downwardly into said chamber.
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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) | 1982-12-17 | 1983-06-18 | 1983-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-17 | 1987-06-18 | 1987-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-17 | 1991-06-18 | 1991-12-18 | $7700.00 | Window Closed / Lapsed |