Toaster oven control knob and method of controlling a toaster oven

Patent metadata

Field	Value
Publication number	US-10051996-B2
Application number	US-201615181532-A
Country	US
Kind code	B2
Filing date	Jun 14, 2016
Priority date	Aug 25, 2015
Publication date	Aug 21, 2018
Grant date	Aug 21, 2018

Abstract

A toaster oven comprising a housing defining a food cavity, an opening defined in the housing, a door movably affixed to the housing, a cooking grid selectively mountable within the housing, one or more heating elements within the housing, a timer controlling activation of the heating elements, and a timer control knob engaged with the timer. The timer control knob is selectively rotatable in a second direction from the off position to a third position to activate at least one of the one or more heating elements until the timer control knob is selectively rotated in the first direction back to the off position. The timer control knob is only selectively rotatable in the second direction from the off position to the third rotational position when a main body of the timer control knob is moved longitudinally from a first longitudinal position to a second longitudinal position.

First claim

That which is claimed:

1. A toaster oven comprising:
a housing defining a food cavity;
an opening defined in the housing to enable access to the food cavity;
a door movably affixed to the housing and selectively movable between a closed position closing off the opening thereby blocking access to the food cavity and an open position enabling access to the food cavity;
a cooking grid selectively mountable within the housing;
one or more heating elements within the housing;
a timer controlling activation of the heating elements; and
a timer control knob engaged with the timer, the timer control knob being selectively rotatable in a first direction from an off position to a second rotational position to set the timer and activate at least one of the one or more heating elements for a desired amount of time corresponding to the second rotational position, the timer control knob being selectively rotatable in a second direction from the off position to a third rotational position to activate at least one of the one or more heating elements until the timer control knob is selectively rotated in the first direction back to the off position, the second direction being opposite the first direction, the timer control knob comprising:
a stem affixed to the timer; and
a main body selectively movably affixed to the stem, the main body selectively movable longitudinally between a first longitudinal position and a second longitudinal position;

wherein the timer control knob is only selectively rotatable in the second direction from the off position to the third rotational position when the main body is moved from the first longitudinal position to the second longitudinal position.

2. The toaster oven of claim 1 , wherein the main body is biased toward the first longitudinal position.

3. The toaster oven of claim 1 , wherein a stationary block projects from the housing;
wherein the control knob further comprises a stop tab;
wherein, when the main body is in the first longitudinal position, the stop tab is aligned with the stationary block to prevent rotation of the timer control knob in the second direction from the off position to the third rotational position; and
wherein, when the main body is in the second longitudinal position, the stop tab is not aligned with the stationary block to permit rotation of the timer control knob in the second direction from the off position to the third rotational position.

4. The toaster oven of claim 3 , wherein the stationary block and/or the stop tab are sized and positioned such that, when the control knob is in the third rotational position, the main body is prevented from returning to the first longitudinal position.

5. The toaster oven of claim 3 , wherein the stationary block has an angled surface that engages with the stop tab as the timer control knob is rotated from the third position in the first rotational direction and/or the stop tab has an angled surface that engages with the stationary block as the timer control knob is rotated from the third position in the first rotational direction, such engagement pushing the main body from the first longitudinal position to the second longitudinal position to permit rotation of the timer control knob in the first rotational direction back to the off position.

6. The toaster oven of claim 1 , wherein the main body is further from the housing when the main body is in the first longitudinal position than when the main body is in the second longitudinal position such that pushing the main body toward the housing moves the main body from the first longitudinal position to the second longitudinal position.

7. The toaster oven of claim 1 , wherein the main body is further from the housing when the main body is in the second longitudinal position than when the main body is in the first longitudinal position such that pulling the main body away from the housing moves the main body from the first longitudinal position to the second longitudinal position.

Assignees

• Hamilton Beach Brands Inc

Inventors

• Starr William D

Classifications

• G05G1/082

  having safety devices, e.g. means for disengaging the control member from the actuated member · CPC title

• A47J37/0664

  Accessories · CPC title

• A47J37/0629 Primary

  with electric heating elements · CPC title

• G05G1/08

  Controlling members for hand actuation by rotary movement, e.g. hand wheels · CPC title

• G05G5/06

  for holding members in one or a limited number of definite positions only ({G05G5/005}, G05G5/03, G05G5/05, G05G5/28 take precedence) · CPC title