Accessories for cooktops.
Radiant burners or heating elements of modern electric ranges mount heating coils beneath a glass or ceramic surface. Induction cooktops and ranges use an electromagnetic field to heat pots and pans. The induction elements also are embedded in the cooktop's or range's surface. Some cooktops and ranges use polished metal instead of glass or ceramics, and others may use other materials, but the text calls them “glass.”
Splatters often occur from heating, boiling or frying contents in pans or pots, and the splatters may dry and harden. Cleaning the top surface or a range or cooktop can be tedious if the splatter dries and hardens, and using an abrasive to help remove hardened food can scratch the glass top.
A silicone sheet or multiple silicone pads together forming a sheet lie over a cooktop's or range's surface's burners or heating elements. If it's a continuous sheet, openings sized for the heating element align with each heating element. An opening cover with dimensions fitting within each opening covers the heating element. When using one heating element, the user removes its opening cover and places a pot or pan in the opening. Any splatter lands on the sheet or an opening cover where it can be cleaned more easily than cleaning the glass top. Cleaning splatters from the sheet does not damage the glass top.
Instead of having one continuous pad, the device can comprise separate small pads for covering one or more heating elements. The small pads are sized so they can cover with little or no open space the entire glass top and its heating elements. Each small pad has an opening cover to cover its heating element. Removing the opening cover provides access to the heating element for a pot or pan.
The smaller pads may have structure for keeping them together so they act as a larger sheet.
When heating elements of a stand-alone or a range cooktop 2 range heating elements are not in use, a silicone sheet shields covers the heating elements. The heating elements are not visible in the figures. Silicone has a low thermal conductivity, so heat transfers at a low rate. Silicone resists extreme temperatures ranging from about −145° to 570° F. (≈−100° to 300° C.). Some companies' silicone cooking products claim a lower maximum temperature, however. Here, only the upper temperature is important because the silicone is exposed to heat from a heating element.
The drawings show two arrangements for heating elements. Manufacturers determine their size and arrangement.
Silicone sheet 4 in
The heating elements'sizes and arrangement of the heating elements are choices of cooktops' manufacturers. The most common cooktop widths are 32 in. (≈81 cm) and 36 in. (≈91 cm). Some cooktops, especially larger ones, have six heating elements. The user cooks with a heating element that fits the pot or pan to be used. Larger heating elements may have more power to heat the pot or pan's contents more quickly.
Each pad or pad section has a removeable center cover 20, 22, 24, 26, and 28 that fit in respective circular openings 30, 32, 33, 36, and 38. See
The removeable center covers 20, 22, 24, 26, and 28 could be silicone, but a less heat-resistant material could suffice because the cover it may not be next to an active heating element. But using silicone for the covers is safer because the cover won't burn if left accidently on an “on” heating element.
The openings are circular in the figures because most pots and pans are round. Some cooktops have a heating element between adjacent heating elements to accommodate a rectangular grill heated by adjacent heating elements and an optional element between the adjacent elements. If a cook wants to use the grill arrangement, he or she would use a pad extending over the elements. The removeable opening could be rectangular, about the size of the grill. Alternatively, separate pads over the heating elements could extend to the heating elements' edges.
A cook wanting to heat a pot or pan on heating element 14, for example, removes center 34 of pad or pad section 24 so the pot or pan is on a heating element. See
The pad openings can fit close to the outside of the pot or pan. Without a pad or pad section, some splatters can drop between the bottom of the pot or pan. Because the splatter is near the heating element, it can dry and burn. With the pads or pad sections, the opening can be closer to the pot or pan wall above the heating element where the splatter is less likely to dry and burn. The pads or pad sections also can be flexible. Bending pads at or near the splatter may make removing dried splatters more easily.
When the device uses separate pads, each pad may connect to one or more adjacent pads. Pads 70 and 72 (
The pads can be cleaned in a dishwasher.
One would buy the correct size pads with the correct size opening for the user's cooktop and with the proper size to cover the cooktop. If using a single sheet, it should have correct size openings for the cooktop's heating elements.
Pads 10, 12, 14, 16, and 18 and 10 or removeable centers 30, 32, 34, 36, and 38 also can serve as trivets. One could remove the pad from the cooktop, place it on the table and place the pot, pan or roasting pan on the pad. Though silicone pads acting as trivets are known, applicants' pads already are within reach because they are adjacent to pot or pan.
The description is illustrative, not limiting and is for example only. Although this application shows and describes examples, those having ordinary skill in the art will find it apparent they can make changes, modifications or alterations. Many examples involve specific combinations of method acts or system elements, but those acts and those elements may be combined in other ways to achieve the same objectives. Acts, elements and features discussed only with one embodiment are not intended to be excluded from a similar role in other embodiments.
Applicants claim priority to U.S. Provisional Application No. 62/798,694 filed Jan. 30, 2019, by Doris Schroeder and John Kasha.
Number | Date | Country | |
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62798694 | Jan 2019 | US |