Patent US5905496A successfully refreshed from Google Patents.
US3707145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-cleaning oven
Assignee: Anetsberger Brothers Inc
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Filing: 1970-12-16
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Granted: 1972-12-26
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Expires: 1990-12-16
Abstract
Abstract A self-cleaning oven with front door means and having inner and outer walls spaced in insulating relationship to each other and defining air passages at the rear, bottom and sides of the oven, with control means disposed in a side passage, air ducts in the lower ends of the side passages with apertures in their top walls and terminating adjacent the bottom of the front door means, and blower means comprising an inner fan disposed interiorly of the oven for circulating heated air therein, an outer fan in the rear air passage, and a motor exteriorly of the oven mounted coaxially with the fans, with shroud means spaced from the motor to insure movement through and around the motor of outside air drawn inwardly by the outer fan and blow thereby over the control and front door means for cooling purposes, plate and spacer means interconnecting the two fans to prevent direct transfer of heat from the inner fan to the motor, improved front door operating mechanism, and temperature-responsive door locking means automatically operable during a cleaning cycle.
Inventors
- 👤 Richard J Anetsberger
- 👤 John A Anetsberger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:15
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/32; F24C15/322; F24C14/00; F24C14/02; F24C14/025
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
125 words
In a self-cleaning oven having a double-walled construction of inner and outer top, bottom, rear and side walls defining interconnecting rear, bottom and side wall spaces, front door means, control means mounted in a side wall space, means for directing air into the latter said side wall space and to the lower exterior of said front door means from said bottom wall space, blower means comprising a cooling fan and rear duct means mounted in said rear wall space for drawing in ambient air and forcing the same forwardly through said bottom wall space and through said side wall spaces to direct cooling air upwardly over said front door means and said control means, and a motor for said fan mounted on said rear wall.
Claim 2
Dependent Claim
125 words
In a self-cleaning oven having a double-walled construction of inner and outer top, bottom, rear and side walls defining interconnecting rear, bottom and side wall spaces, front door means, control means mounted in a side wall space, means for directing air into the latter said side wall space and to the lower exterior of said front door means from said bottom wall space, blower means comprising a cooling fan and rear duct means mounted in said rear wall space for drawing in ambient air and forcing the same forwardly through said bottom wall space and through said side wall spaces to direct cooling air upwardly over said front door means and said control means, and a motor for said fan mounted on said rear wall.
Claim 3
Dependent Claim
33 words
In a self-cleaning oven according to claim 1, shroud means mounted on said outer rear wall for requiring air drawn in by said cooling fan to pass in close proximity to said motor.
Claim 4
Dependent Claim
68 words
A self-cleaning oven according to claim 2, wherein said blower means includes a second inner fan mounted coaxially with said cooling fan interiorly of the oven, and plate means mounted on adjacent ends of said fans and interconnected by peripherally spaced spacers to drivingly support said inner fan on said cooling fan and prevent direct transfer of heat from said inner fan to the shaft of said motor.
Claim 5
Dependent Claim
56 words
In a self-cleaning oven according to claim 3, side air ducts mounted in the lower ends of said side wall spaces for directing cooling air from said rear air duct means over said front door means and having apertures in their upper walls for supplying cooling air to said side wall spaces and said control means.
Claim 6
Dependent Claim
48 words
In a self-cleaning oven according to claim 4, burner means disposed between said inner and outer bottom walls, and deflector means extending laterally upwardly from and forming a part of said outer bottom wall for protectiNg said side air ducts from the heat generated by said burner means.
Claim 7
Dependent Claim
88 words
A self-cleaning oven according to claim 1, wherein said front door means comprises a pair of interengaging doors mounted on vertical pintles and a handle attached to a first of one of said doors, means for swinging the second said door in response to swinging of said first door by aid handle, comprising sprockets mounted on the lower ends of the door pintles, chain means drivingly engaging said sprockets and including adjustable solid links, and a spring interconnected between said side walls and each of said solid links.
Claim 8
Dependent Claim
47 words
In a self-cleaning oven according to claim 6, a cam disc mounted on the lower end of the pintle of said first door having peripherally spaced notches, and a cam follower resiliently urged into engagement with said notches to releasably maintain said doors in selectively adjusted positions.
Claim 9
Dependent Claim
39 words
A self-cleaning oven according to claim 7, wherein one of said cam notches is so disposed as to function as a camming surface against which said cam follower exerts a door-closing force on the pintle of said first door.
Claim 10
Dependent Claim
109 words
In a self-cleaning oven according to claim 1, a normally inoperative door lock for said front door means, an oven cleaning control comprising one of said control means, and means operable by said oven cleaning control for moving said lock to operative position to prevent opening of said front door means whenever the temperature of said oven is above normal maximum cooking temperature, wherein said door locking means comprises a keeper, spring means urging said keeper to an inoperative position, a solenoid having an armature connected to said keeper, and a high temperature thermostat operable to cause deenergization of said solenoid to move said keeper into normal inoperative position.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-26 | 1976-06-26 | 1976-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-26 | 1980-06-26 | 1980-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-26 | 1984-06-26 | 1984-12-26 | $7700.00 | Window Closed / Lapsed |