US4716819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat transfer device for use in cooking pizzas
Assignee: Pizza Hut LLC
•
Filing: 1987-05-04
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Granted: 1988-01-05
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Expires: 2007-05-04
Abstract
Abstract The invention is heat transfer device to aid in the cooking of pizzas, particularly thick or double crust pizzas, as well as a method for cooking an assembled pizza with such a device. The device comprises a heat conducting means, preferably made in one piece, which in turn comprises a heat absorbing band portion with heat transferring pins extending therefrom. In the preferred embodiment, the heat conducting means is formed in a spiral with the heat transferring pins extending in a direction perpendicular to the spiral. In another embodiment, the heat conducting means is formed in at least two concentric circles with the heat transferring pins extending in a direction perpendicular to the circles. The method of using the device includes the steps of inserting the heat transferring pins into the pizza before it is cooked and then removing the pins after the pizza is cooked.
Inventors
- 👤 John D. Beltz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:48
CPC Classifications
A; A21; A21B; A21B5/00; A47; A47J; A47J37/00; A47J43/00; A47J43/28
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
41 words
A device for use in cooking a pizza which comprises a one-piece heat conducting means with a heat absorbing band portion and with a plurality of heat transferring pins extending from the heat absorbing band portion of inserting into the pizza.
Claim 2
Independent Claim
41 words
A device for use in cooking a pizza which comprises a one-piece heat conducting means with a heat absorbing band portion and with a plurality of heat transferring pins extending from the heat absorbing band portion of inserting into the pizza.
Claim 3
Independent Claim
64 words
A device for use in cooking a pizza which comprises a heat conducting means with a heat absorbing band portion and with a pluraltiy of heat transferring pins extending from the heat absorbing band portion for inserting into the pizza, the heat conducting means being formed generally in a spiral with the heat transferring pins extending in a direction generally perpendicular to the spiral.
Claim 4
Independent Claim
64 words
A device for use in cooking a pizza which comprises a heat conducting means with a heat absorbing band portion and with a pluraltiy of heat transferring pins extending from the heat absorbing band portion for inserting into the pizza, the heat conducting means being formed generally in a spiral with the heat transferring pins extending in a direction generally perpendicular to the spiral.
Claim 5
Dependent Claim
23 words
The device of claim 2 further comprising a supporting bar which is attached to the heat conducting means in at least two places.
Claim 6
Dependent Claim
16 words
The device of claim 2 wherein the heat conducting means is formed in a single piece.
Claim 7
Dependent Claim
44 words
The device of claim 2 wherein the heat transferring pins have a length such that when the pins are inserted into the pizza a portion of each pin remains outside of the pizza thereby preventing the heat absorbing band portion from contacting the pizza.
Claim 8
Dependent Claim
22 words
The device of claim 2 wherein the heat absorbing band portion has a thickness similar to that of the heat transferring pins.
Claim 9
Dependent Claim
25 words
The device of claim 2 wherein the heat conducting means is formed from a material selected from the group consisting of aluminum and aluminum alloys.
Claim 10
Dependent Claim
19 words
The device of claim 2 wherein the heat transferring pins are spaced at generally equal distances along the spiral.
Claim 11
Dependent Claim
44 words
The device of claim 2 wherein the heat transferring pins are tapered such that each has a width at the end distal from the heat absorbing band portion which is less than a width at the end proximate to the heat absorbing band portion.
Claim 12
Dependent Claim
21 words
The device of claim 2 wherein the spiral comprises at least two revolutions which are separated by a generally unifrom distance.
Claim 13
Dependent Claim
16 words
The device of claim 2 wherein the heat transferring pins are coated with a non-stick material.
Claim 14
Independent Claim
114 words
A device for use in cooking a pizza which comprises a one-piece heat conducting means which is formed generally in a spiral with at least two revolutions and which means comprises a heat absorbing band portion with tapered heat transferring pins for inserting into the pizza extending from the heat absorbing band portion in a direction generally perpendicular to the spiral, the heat transferring pins having a length such that when the pins are inserted into the pizza a portion of each pin remains outside of the pizza thereby preventing the heat absorbing band portion from contacting the pizza, the device further comprising a supporting bar which is attached to the heat conducting means.
Claim 15
Independent Claim
114 words
A device for use in cooking a pizza which comprises a one-piece heat conducting means which is formed generally in a spiral with at least two revolutions and which means comprises a heat absorbing band portion with tapered heat transferring pins for inserting into the pizza extending from the heat absorbing band portion in a direction generally perpendicular to the spiral, the heat transferring pins having a length such that when the pins are inserted into the pizza a portion of each pin remains outside of the pizza thereby preventing the heat absorbing band portion from contacting the pizza, the device further comprising a supporting bar which is attached to the heat conducting means.
Claim 16
Independent Claim
66 words
A device for use in cooking a pizza which comprises a heat conducting means with a heat absorbing band portion and with a plurality of heat transferring pins extending from the heat absorbing band portion for inserting into the pizza, the heat conducting means being formed in at least two concentric circles with the heat transferring pins extending in a direction generally perpendicular to the circles.
Claim 17
Independent Claim
66 words
A device for use in cooking a pizza which comprises a heat conducting means with a heat absorbing band portion and with a plurality of heat transferring pins extending from the heat absorbing band portion for inserting into the pizza, the heat conducting means being formed in at least two concentric circles with the heat transferring pins extending in a direction generally perpendicular to the circles.
Claim 18
Dependent Claim
44 words
The device of claim 13 wherein the heat transferring pins have a length such that when the pins are inserted into the pizza a portion of each pin remains outside of the pizza thereby preventing the heat absorbing band portion from contacting the pizza.
Claim 19
Dependent Claim
22 words
The device of claim 13 wherein the heat absorbing band portion has a thickness similar to that of the heat transferring pins.
Claim 20
Dependent Claim
44 words
The device of claim 13 wherein the heat transferring pins are tapered such that each has a width at the end distal from the heat absorbing band portion which is less than a width at the end proximate to the heat absorbing band portion.
Claim 21
Dependent Claim
48 words
The device of claim 13 wherein the heat transferring pins are generally cylindrical with a taper such that each has a diameter at the end distal from the heat absorbing band portion which is less than the diameter at the end proximate to the heat absorbing band portion.
Claim 22
Dependent Claim
25 words
The device of claim 13 wherein the heat conducting means is formed from a material selected from the group consisting of aluminum and aluminum alloys.
Claim 23
Dependent Claim
19 words
The device of claim 13 wherein the heat transferring pins are spaced at generally equal distances along the circles.
Claim 24
Dependent Claim
20 words
The device of claim 13 further comprising a supporting bar which is attached to at least one of the circles.
Claim 25
Dependent Claim
16 words
The device of claim 13 wherein the heat transferring pins are coated with a non-stick material.
Claim 26
Independent Claim
96 words
A device for use in cooking a pizza which comprises a one-piece heat conducting means which is formed in at least two concentric circles and which means comprises a heat absorbing band portion with tapered heat transferring pins for inserting into the pizza extending from the heat absorbing band portion in a direction generally perpendicular to the circle, the heat transferring pins having a length such that when the pins are inserted into the pizza a portion of each pin remains outside of the pizza thereby preventing the heat absorbing band portion from contacting the pizza.
Claim 27
Independent Claim
96 words
A device for use in cooking a pizza which comprises a one-piece heat conducting means which is formed in at least two concentric circles and which means comprises a heat absorbing band portion with tapered heat transferring pins for inserting into the pizza extending from the heat absorbing band portion in a direction generally perpendicular to the circle, the heat transferring pins having a length such that when the pins are inserted into the pizza a portion of each pin remains outside of the pizza thereby preventing the heat absorbing band portion from contacting the pizza.
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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) | 1991-01-04 | 1991-07-06 | 1992-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-04 | 1995-07-06 | 1996-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-04 | 1999-07-06 | 2000-01-05 | $7700.00 | Window Closed / Lapsed |