Patent US3831002A successfully refreshed from Google Patents.
US3831002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frypan with removable handles and heat shield
Assignee: Sunbeam Corp
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Filing: 1973-05-21
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Granted: 1974-08-20
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Expires: 1993-05-21
Abstract
Abstract An electric frying pan having handles and a shield for the bottom surface of the frypan detachably secured to the vessel portion of the frypan. In one embodiment the handles and shield are detachable as a unitary assembly. An alternative embodiment provides for the detachment of the shield and handles separately.
Inventors
- 👤 J Mysicka
- 👤 W Lockett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:41
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/10; A47J37/105; A47J45/00; A47J45/06; A47J45/07; A47J45/072
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
127 words
An immersible electric frying pan comprising a vessel of heat conducting material having side walls and a bottom wall with a sheathed electric heating element supported on said bottom wall in good heat conducting relationship with said bottom wall, a radiation shield readily detachably connected to said vessel and positioned below said bottom wall to shield radiation from said bottom wall to a supporting surface, combined handle and feet members on opposite sides of said vessel and engaging opposite edges of said shield, said combined handle and feet members being formed of heat insulating material, manually operable assembly means for retaining said shield and said members secured to said vessel, and a coating on the outside of said bottom wall to facilitate removal of food deposits therefrom.
Claim 2
Dependent Claim
127 words
An immersible electric frying pan comprising a vessel of heat conducting material having side walls and a bottom wall with a sheathed electric heating element supported on said bottom wall in good heat conducting relationship with said bottom wall, a radiation shield readily detachably connected to said vessel and positioned below said bottom wall to shield radiation from said bottom wall to a supporting surface, combined handle and feet members on opposite sides of said vessel and engaging opposite edges of said shield, said combined handle and feet members being formed of heat insulating material, manually operable assembly means for retaining said shield and said members secured to said vessel, and a coating on the outside of said bottom wall to facilitate removal of food deposits therefrom.
Claim 3
Dependent Claim
60 words
The combination of claim 1 wherein said sheathed heating element comprises a heating element of circular shape brazed to said bottom wall, said radiation shield comprising a shallow sheet metal pan having a flat central portion and upstanding peripheral side walls which engage said bottom wall of said vessel outside of said heating element forming an enclosure for said element.
Claim 4
Dependent Claim
75 words
The combination of claim 1 wherein said vessel is formed of an aluminum alloy, said coating being a porcelain enamel which increases the heat radiation from said bottom wall, said manually operable assembly means including a threaded stud fixed to said bottom wall and extending downwardly through said radiation shield, said shield having mounted thereon a knurled nut having a portion exposed for rotation manually below said shield and threaded into engagement with said stud.
Claim 5
Dependent Claim
42 words
The combination of claim 1 wherein said combined handle and feet members are formed of molded plastic and are connected together by an integrally molded web which extends beneath said shield and retains said shield against said bottom wall of said vessel.
Claim 6
Dependent Claim
53 words
The combination of claim 4 wherein said vessel is provided with a threaded stud extending downwardly from said bottom wall, a manually operable knurled nut rotatably supported by said web and rotatable into threaded engagement with said stud to retain said shield and said combined handle and feet members assembled to said vessel.
Claim 7
Dependent Claim
57 words
The combination of claim 1 wherein said vessel is provided with threaded studs extending outwardly from opposite side walls, said manually operable means comprising manually operable nuts received on said studs for engagement with said shield or said combined handle and feet members, a locating stud extending downwardly from said bottom wall into engagement with said shield.
Claim 8
Dependent Claim
30 words
The combination of claim 6 wherein said shield includes portions extending upwardly parallel to the sidewalls supporting said threaded studs, said portions having slots within which said studs are received.
Claim 9
Dependent Claim
62 words
The combination of claim 6 wherein said combined handle and feet members are formed with portions engaging said sidewalls supporting said threaded studs, said last mentioned portions being formed with slots to receive said studs whereby said nuts clamp said portions of said combined handle and feet members against said sidewalls to retain said shield and said members assembled to said vessel.
Claim 10
Dependent Claim
233 words
An immersible electric frying pan comprising a vessel of heat conducting material having side walls and a bottom wall with a sheathed electric heating element supported on said bottom wall in good heat conducting relationship with said bottom wall, a radiation shield readily detachably connected to said vessel and positioned below said bottom wall to shield radiation from said bottom wall to a supporting surface, combined handle and feet members on opposite sides of said vessel and engaging opposite edges of said shield, said combined handle and feet members being formed of heat insulating material, manually operable assembly means for retaining said shield and said members secured to said vessel, and a coating on the outside of said bottom wall to facilitate removal of food deposits therefrom, said heating element being of circular shape and brazed to said bottom wall, said radiation shield comprising a shallow sheet metal pan having a flat central portion and upstanding peripheral side walls which engage said bottom wall of said vessel outside of said heating element forming an enclosure for said element, said peripheral sidewalls being formed with at least one opening through which said heating element extends for connection with a source of power, said combined feet and handle members having support portions which extend into said enclosure through openings in said peripheral sidewalls, assembly means attaching the support portions within said enclosure to said shield.
Claim 11
Dependent Claim
233 words
An immersible electric frying pan comprising a vessel of heat conducting material having side walls and a bottom wall with a sheathed electric heating element supported on said bottom wall in good heat conducting relationship with said bottom wall, a radiation shield readily detachably connected to said vessel and positioned below said bottom wall to shield radiation from said bottom wall to a supporting surface, combined handle and feet members on opposite sides of said vessel and engaging opposite edges of said shield, said combined handle and feet members being formed of heat insulating material, manually operable assembly means for retaining said shield and said members secured to said vessel, and a coating on the outside of said bottom wall to facilitate removal of food deposits therefrom, said heating element being of circular shape and brazed to said bottom wall, said radiation shield comprising a shallow sheet metal pan having a flat central portion and upstanding peripheral side walls which engage said bottom wall of said vessel outside of said heating element forming an enclosure for said element, said peripheral sidewalls being formed with at least one opening through which said heating element extends for connection with a source of power, said combined feet and handle members having support portions which extend into said enclosure through openings in said peripheral sidewalls, assembly means attaching the support portions within said enclosure to said shield.
Claim 12
Dependent Claim
265 words
An immersible electric frying pan comprising a vessel of heat conducting material having side walls and a bottom wall with a sheathed electric heating element supported on said bottom wall in good heat conducting relationship with said bottom wall, a radiation shield readily detachably connected to said vessel and positioned below said bottom wall to shield radiation from said bottom wall to a supporting surface, combined handle and feet members on opposite sides of said vessel and engaging opposite edgEs of said shield, said combined handle and feet members being formed of heat insulating material, manually operable assembly means for retaining said shield and said members secured to said vessel, and a coating on the outside of said bottom wall to facilitate removal of food deposits therefrom, said vessel being formed of an aluminum alloy, said coating being a porcelain enamel which increases the heat radiation from said bottom wall, said manually operable assembly means including a threaded stud fixed to said bottom wall and extending downwardly through said radiation shield, said shield having mounted thereon a knurled nut having a portion exposed for rotation manually below said shield and threaded into engagement with said stud, said combined handle and feet members each having handle portions which extend parallel to and spaced from the opposed side walls of said vessel, said handle portions supporting said vessel out of contact with a supporting surface when said frypan is inverted thereon, said knurled nut being engageable with said stud to commence threaded engagement when said vessel and said handle portion are resting inverted on a supporting surface.
Claim 13
Dependent Claim
265 words
An immersible electric frying pan comprising a vessel of heat conducting material having side walls and a bottom wall with a sheathed electric heating element supported on said bottom wall in good heat conducting relationship with said bottom wall, a radiation shield readily detachably connected to said vessel and positioned below said bottom wall to shield radiation from said bottom wall to a supporting surface, combined handle and feet members on opposite sides of said vessel and engaging opposite edgEs of said shield, said combined handle and feet members being formed of heat insulating material, manually operable assembly means for retaining said shield and said members secured to said vessel, and a coating on the outside of said bottom wall to facilitate removal of food deposits therefrom, said vessel being formed of an aluminum alloy, said coating being a porcelain enamel which increases the heat radiation from said bottom wall, said manually operable assembly means including a threaded stud fixed to said bottom wall and extending downwardly through said radiation shield, said shield having mounted thereon a knurled nut having a portion exposed for rotation manually below said shield and threaded into engagement with said stud, said combined handle and feet members each having handle portions which extend parallel to and spaced from the opposed side walls of said vessel, said handle portions supporting said vessel out of contact with a supporting surface when said frypan is inverted thereon, said knurled nut being engageable with said stud to commence threaded engagement when said vessel and said handle portion are resting inverted on a supporting surface.
Claim 14
Dependent Claim
244 words
An electric frypan comprising a shallow rectangular aluminum alloy vessel having side walls and a bottom wall, a sheathed electric heating element fixed to said bottom wall in good heat exchange relation therewith, said element being generally circular and having parallel ends which extend to the edge of said bottom wall and support insulated terminals thereon, a probe type temperature control having an elongated probe and electrical terminal connectors, means in good heat exchange relationship with said bottom wall between said parallel ends forming a passageway within which said elongated probe is received when said terminal connectors engage said terminals, a terminal cover secured to said bottom wall enclosing said terminals and providing an opening to receive said probe control, a radiation shield comprising a generally pan shaped member having a flat central portion and upstanding side walls, a threaded stud extending downwardly from the center of said bottom wall, a knurled nut rotatably supported in the center of said flat central portion and having a large knurled manually actuable portion exposed below said shield, said nut threadedly engaging said stud to retain said shield assembled to said vessel, combined handle and feet members of heat insulating material having transversely extending handle portions at the ends of which column portions extend downwardly terminating in foot members, support portions extending inwardly from each of said column portions for engagement with said bottom wall to support said vessel in closely spaced relation to a supporting surface.
Claim 15
Dependent Claim
244 words
An electric frypan comprising a shallow rectangular aluminum alloy vessel having side walls and a bottom wall, a sheathed electric heating element fixed to said bottom wall in good heat exchange relation therewith, said element being generally circular and having parallel ends which extend to the edge of said bottom wall and support insulated terminals thereon, a probe type temperature control having an elongated probe and electrical terminal connectors, means in good heat exchange relationship with said bottom wall between said parallel ends forming a passageway within which said elongated probe is received when said terminal connectors engage said terminals, a terminal cover secured to said bottom wall enclosing said terminals and providing an opening to receive said probe control, a radiation shield comprising a generally pan shaped member having a flat central portion and upstanding side walls, a threaded stud extending downwardly from the center of said bottom wall, a knurled nut rotatably supported in the center of said flat central portion and having a large knurled manually actuable portion exposed below said shield, said nut threadedly engaging said stud to retain said shield assembled to said vessel, combined handle and feet members of heat insulating material having transversely extending handle portions at the ends of which column portions extend downwardly terminating in foot members, support portions extending inwardly from each of said column portions for engagement with said bottom wall to support said vessel in closely spaced relation to a supporting surface.
Claim 16
Dependent Claim
35 words
The combination of claim 11 wherein said shield is fixed to said support portions of said vessel so that said shield and combined handle and feet members are removable as an assembly from said vessel.
Claim 17
Dependent Claim
52 words
The combination of claim 12 wherein said bottom wall of said vessel is coated with a porcelain enamel to facilitate cleaning, said shield enclosing the generally circular portion of said heating element and having an opening in said side walls through which said parallel ends and said means forming a passageway extend.
Claim 18
Dependent Claim
40 words
The combination of claim 11 wherein said shield overlies said support portions of said combined handle and leg members and is provided with means engaging said support portions to retain said combined handle and leg members assembled to said frypan.
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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) | 1977-08-19 | 1978-02-18 | 1978-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-19 | 1982-02-18 | 1982-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-19 | 1986-02-18 | 1986-08-20 | $7700.00 | Window Closed / Lapsed |