US3830220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oven rack operating mechanism
Assignee: Individual
•
Filing: 1973-07-16
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Granted: 1974-08-20
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Expires: 1993-07-16
Abstract
Abstract A conventional oven with an opening for access to the interior thereof usually has at least two pairs of flanges extending rearwardly along opposite sides of the interior of the oven for supporting movable racks. A door is hinged at the lower edge of the oven opening on horizontal pivot axes for vertical swinging movement to open and close the oven opening. At least one rack is positionable within the oven and supported by one of the flange pairs, and movable along same. A pair of mounting brackets are disposed on the inner wall of the door and on opposite edges thereof, and in close proximity to the horizontal axes. An operating arm is pivotally combined with each mounting bracket and disconnectably, pivotally combined with each rack to permit withdrawal of the rack upon opening the door and returning the rack upon closing the door.
Inventors
- 👤 J Demetreon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:14
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/16; F24C15/162
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
216 words
An apparatus for the withdrawal and return of oven racks in an oven, comprising: an oven provided with an opening for access to the interior of said oven and having at least one pair of flanges extending inwardly along opposite sides of the interior of said oven; a door hinged substantially at the lower edge of the oven opening on horizontal pivot axes for vertical swinging movement to open and close said oven opening; at least one rack positionable within said oven and supported by said flange pair and movable along said flange pairs; a pair of mounting brackets disposed on the inner wall of said door and on opposite edges thereof and in close proximity to said horizontal axes; an operating arm pivotally combined with each said mounting brackets, said arm being disconnectable without the use of special tools and pivotally combined with each said rack at opposite sides thereof to permit withdrawal of said rack upon closing said door and said brackets having a base end portion and a pivot end portion, said base end portion being located nearer to the lower edge of said oven door than said pivot end portion, said bracket thereby having a shape that extends outwardly from the inner surface of the door towards the upper door edge. Pg,13
Claim 2
Independent Claim
216 words
An apparatus for the withdrawal and return of oven racks in an oven, comprising: an oven provided with an opening for access to the interior of said oven and having at least one pair of flanges extending inwardly along opposite sides of the interior of said oven; a door hinged substantially at the lower edge of the oven opening on horizontal pivot axes for vertical swinging movement to open and close said oven opening; at least one rack positionable within said oven and supported by said flange pair and movable along said flange pairs; a pair of mounting brackets disposed on the inner wall of said door and on opposite edges thereof and in close proximity to said horizontal axes; an operating arm pivotally combined with each said mounting brackets, said arm being disconnectable without the use of special tools and pivotally combined with each said rack at opposite sides thereof to permit withdrawal of said rack upon closing said door and said brackets having a base end portion and a pivot end portion, said base end portion being located nearer to the lower edge of said oven door than said pivot end portion, said bracket thereby having a shape that extends outwardly from the inner surface of the door towards the upper door edge. Pg,13
Claim 3
Dependent Claim
77 words
The apparatus of claim 1, wherein the pivotal combination of said operating arm with said bracket lies in a plane above the lowermost flange pair with said door in an open position, each of said brackets and operating arms being constructed so that when said rack is positioned on said lowermost flange pair, the front edge of said rack may be withdrawn past said last mentioned pivotal combination without interfering with said rack in the withdrawal operation.
Claim 4
Dependent Claim
70 words
The invention of claim 1, including a second rack positionable within said oven and supported by separate flange pairs; and an operating arm pivotally combined with each said mounting brackets, said arm being disconnectable without the use of special tools and pivotally combined with said second rack at opposite sides thereof to permit withdrawal of both said racks upon opening said door and returning said racks upon closing said door.
Claim 5
Dependent Claim
54 words
The apparatus as in claim 1 wherein said pivot end portions of said brackets extend through said rack when said door is opened and said rack has a portion thereof extending exteriorly of said oven, said brackets and said arms cooperating to effect the withdrawal movement of said rack as said door is opened.
Claim 6
Dependent Claim
69 words
The apparatus as in claim 1 wherein each of said brackets has an outer edge connecting said base end portion with said pivot end portion, an upper portion of said outer edge being capable of extending above a lowermost rack when said door is closed, said outer edge continuing in a path from said pivot end portion to said base portion below the horizontal plane of the lowermost rack.
Claim 7
Dependent Claim
87 words
The apparatus as in claim 5 wherein said rack has a projection extending from each side portion thereof, said projections located a preselected distance from the forward edge of said rack, each one of said arms having a means on the rearward end portion thereof for detachably connecting same with one of said corresponding projections, said connecting arms being a preselected length and cooperating with said location and shape of said brackets to withdraw said rack a preselected distance from said oven when said door is opened.
Claim 8
Dependent Claim
41 words
The combination as in claim 5 wherein said pivot end portion of each of said brackets has a tab extending therefrom, the forward end portions of said arms having a means thereon for detachably connecting said arm with a corresponding tab.
Claim 9
Dependent Claim
44 words
The invention of claim 1, including a multiplier means pivotally connected to each said brackets, said arms being pivotally connected to said multiplier means, said multiplier means being located for enabling said racks to be withdrawn to a greater extent than without said multiplier.
Claim 10
Dependent Claim
54 words
The combination as in claim 8 wherein said pivot end portions of said brackets extend through said rack when said door is opened and said rack has a portion thereof extending exteriorly of said oven, said brackets and said arms cooperating to effect the withdrawal movement of said rack as said door is opened.
Claim 11
Dependent Claim
69 words
The combination as in claim 8 wherein each of said brackets has an outer edge connecting said base end portion with said pivot end portion, an upper portion of said outer edge being capable of extending above a lowermost rack when said door is closed, said outer edge continuing in a path from said pivot end portion to said base portion below the horizontal plane of the lowermost rack.
Claim 12
Dependent Claim
87 words
The combination as in claim 10 wherein said rack has a projection extending from each side portion thereof, said projections located a preselected distance from the forward edge of said rack, each one of said arms having a means on the rearward end portion thereof for detachably connecting same with one of said corresponding projections, said connecting arms being a preselected length and cooperating with said location and shape of said brackets to withdraw said rack a preselected distance from said oven when said door is opened.
Claim 13
Dependent Claim
41 words
The combination as in claim 10 wherein said pivot end portion of each of said Brackets has a tab extending therefrom, the forward end portions of said arms having a means thereon for detachably connecting said arm with a corresponding tab.
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) | 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 |