Patent US3792653A successfully refreshed from Google Patents.
US3792653A
Expired / Lapsed
US
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Toaster
Assignee: RUSSELL GORDON K 1 RICHVIEW ROAD APT 1101B ISLINGTON ONTARIO CANADA M9A 4M6
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Filing: 1972-03-20
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Granted: 1974-02-19
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Expires: 1992-03-20
Abstract
Abstract A toaster for frankfurters and buns, having a circular frankfurter heating chamber formed by two apertured reflective removable shields. The shields have inturned ends forming two spaced cylindrical frankfurter guides. Two arcuate bun heating chambers partly encircle the frankfurter heating chamber, with a frankfurter guide between the arms of each bun heating chamber. A common elevator raises and lowers both frankfurters and buns simultaneously. Part of the heat from an element in the frankfurter heating chamber passes through apertures in the shields to toast buns in the bun heating chambers, and the remainder is reflected back to augment the heat applied to the frankfurters, so the frankfurters and buns will be finished together. Since each bun is toasted in partly opened configuration, it will not split in two, and since it pops-up partly encircling its frankfurter, it can be used to grasp and remove the frankfurter.
Inventors
- 👤 B Davidson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:59
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/06; A47J37/08; A47J37/0814; A47J37/0688
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
96 words
A toaster for heating a frankfurter bun of the type having two connected halves, said toaster comprising: a. a heating chamber for said bun, said heating chamber having first and second connected diverging portions for restraining said bun in a V-shaped configuration, b. an elevator in said chamber for raising and lowering said bun, said elevator including first and second connected diverging elevator portions for supporting the bottoms of the two halves of said bun, c. means for raising and lowering said elevator, d. and element means associated with said heating chamber for toasting said bun.
Claim 2
Dependent Claim
96 words
A toaster for heating a frankfurter bun of the type having two connected halves, said toaster comprising: a. a heating chamber for said bun, said heating chamber having first and second connected diverging portions for restraining said bun in a V-shaped configuration, b. an elevator in said chamber for raising and lowering said bun, said elevator including first and second connected diverging elevator portions for supporting the bottoms of the two halves of said bun, c. means for raising and lowering said elevator, d. and element means associated with said heating chamber for toasting said bun.
Claim 3
Dependent Claim
17 words
A toaster according to claim 1 wherein said heating chamber and elevator are both curved in plan.
Claim 4
Dependent Claim
11 words
A toaster according to claim 2 wherein said curvature is circular.
Claim 5
Dependent Claim
38 words
A toaster according to claim 3 wherein said portions of said bun heating chamber diverge at an angle such that the faces of the two halves of said bun diverge at an angle of between 50* and 140*.
Claim 6
Dependent Claim
12 words
A toaster according to claim 4 wherein said angle is approximately 90*.
Claim 7
Dependent Claim
178 words
A toaster for heating both a frankfurter bun of the type having two connected halves, and a frankfurter, said toaster comprising: a. a heating chamber for said bun, said heating chamber having first and second connected divergIng portions for restraining said bun in a V-shaped configuration, b. an elevator in said chamber for raising and lowering said bun, c. means for raising and lowering said elevator, d. element means associated with said heating chamber for toasting said bun, e. substantially cylindrical frankfurter guide means for constraining said frankfurter for movement along its axis in a direction parallel to the direction of movement of said bun, f. said frankfurter guide means being located at least in part between said diverging portions of said bun heating chamber, g. said elevator having a portion extending into said frankfurter guide means so that movement of said elevator raises and lowers said frankfurter and bun simultaneously, whereby when said frankfurter and bun are raised to project from said toaster, said frankfurter can be gripped with said bun and thereby lifted from said toaster.
Claim 8
Dependent Claim
178 words
A toaster for heating both a frankfurter bun of the type having two connected halves, and a frankfurter, said toaster comprising: a. a heating chamber for said bun, said heating chamber having first and second connected divergIng portions for restraining said bun in a V-shaped configuration, b. an elevator in said chamber for raising and lowering said bun, c. means for raising and lowering said elevator, d. element means associated with said heating chamber for toasting said bun, e. substantially cylindrical frankfurter guide means for constraining said frankfurter for movement along its axis in a direction parallel to the direction of movement of said bun, f. said frankfurter guide means being located at least in part between said diverging portions of said bun heating chamber, g. said elevator having a portion extending into said frankfurter guide means so that movement of said elevator raises and lowers said frankfurter and bun simultaneously, whereby when said frankfurter and bun are raised to project from said toaster, said frankfurter can be gripped with said bun and thereby lifted from said toaster.
Claim 9
Dependent Claim
22 words
A toaster according to claim 6 wherein said element is a single electrical element for heating both said bun and said frankfurter.
Claim 10
Dependent Claim
50 words
A toaster according to claim 7 and including a plurality of said frankfurter guide means and a plurality of said bun heating chambers, each frankfurter guide means being associated with one bun heating chamber and being located at least in part between the arms of its associated bun heating chamber.
Claim 11
Dependent Claim
173 words
A toaster for heating both a frankfurter bun of the type having two connected halves, and a frankfurter, said toaster comprising: a. a heating chamber for said bun, said heating chamber having first and second connected diverging portions for restraining said bun in a V-shaped configuration for movement in a direction parallel to the longitudinal axis of said bun, b. frankfurter guide means for constraining said frankfurter for axial movement in a direction parallel to said first mentioned direction, c. said frankfurter guide means being located to position said frankfurter at least in part between said diverging portions of said bun heating chamber, d. element means for heating said frankfurter and said bun, e. and elevator means operative for moving said bun and said frankfurter simultaneously in said heating chamber and said frankfurter guide means respectively, whereby when said elevator means is operated to move said bun and said frankfurter to positions in which they project from said toaster, said frankfurter can be gripped with said bun and thereby removed from said toaster.
Claim 12
Dependent Claim
173 words
A toaster for heating both a frankfurter bun of the type having two connected halves, and a frankfurter, said toaster comprising: a. a heating chamber for said bun, said heating chamber having first and second connected diverging portions for restraining said bun in a V-shaped configuration for movement in a direction parallel to the longitudinal axis of said bun, b. frankfurter guide means for constraining said frankfurter for axial movement in a direction parallel to said first mentioned direction, c. said frankfurter guide means being located to position said frankfurter at least in part between said diverging portions of said bun heating chamber, d. element means for heating said frankfurter and said bun, e. and elevator means operative for moving said bun and said frankfurter simultaneously in said heating chamber and said frankfurter guide means respectively, whereby when said elevator means is operated to move said bun and said frankfurter to positions in which they project from said toaster, said frankfurter can be gripped with said bun and thereby removed from said toaster.
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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) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |