Circuit transfer apparatus
AssigneeBunker Ramo Corporation
InventorsJohn M. Stahl, Robert W. DeRoss
Life of this patent
Estimating the term…
Abstract
Circuit transfer apparatus is described for use in transferring from time-responsive control to temperature-responsive control, and vice-versa, in a microwave oven. The low cost, miniaturized apparatus is mounted to the wall of the oven's cooking cavity and is operated from within the cavity by insertion or withdrawal of the cable plug of the heat-sensitive food probe. The probe plug cooperates with insulative elements to activate spring-leaf sheet metal contacts mounted in the housing of the apparatus, to thereby effect the circuit transfer. The housing also serves as mechanical retention means for the probe plug.
Claims20
A jack for regulating the time and temperature responsive control circuits of a microwave oven, comprising:
- housing means including an orifice for receiving a temperature probe plug therein;
- temperature-sensing circuit contact means for electrically engaging said plug within said housing means;
- time and temperature responsive control circuit contact means including a plurality of first and second contact members disposed within said housing means, said first contact members being electrically engageable with selected second contact members;
- and
- means for electrically isolating said first contact members from one another and including means for translating the insertion and withdrawal movements of said plug into and from said housing means into movements of said first contact members to selectively engage various second contact members to transfer between the control circuits of the oven.
A jack adapted for a microwave oven having a microwave energy generating means and time-responsive and temperature-responsive control circuitry for operatively controlling said energy generating means, said jack comprising:
- a housing having a central cavity and including means for receiving a male plug therein;
- means for removably retaining said plug within said cavity when said plug is inserted into said housing, including means for electrically engaging said plug therein;
- a plurality of resilient and movable leaf spring contact means each having a free end disposed within said cavity, and a plurality of generally stationary contact means extending into said cavity, each of said stationary contact means having a contact element disposed on its free end within said cavity, said leaf spring and stationary contact means selectively interconnecting the time-responsive and temperature-responsive control circuitry to said energy generating means;
- and
- means within said cavity for electrically isolating said leaf spring contact means from one another and including means for translating the insertion and withdrawal movements of said plug into and out of said cavity into movements of said leaf spring contact means to electrically engage the free ends thereof with selected stationary contact means to selectively interconnect the time-responsive and temperature-responsive control circuitry in a pre-determined manner.
A transfer apparatus for interconnecting one of a pair of electrical control circuits of a device, said apparatus comprising:
- housing means including an orifice for receiving a plug means therein;
- first circuit contact means for electrically engaging said plug within said housing means;
- first and second control circuit contact means including a plurality of first and second contact members disposed within said housing means, said first contact members being electrically engageable with selected second contact members;
- and
- means for electrically isolating said first contact members from one another and including means for translating the insertion and withdrawal movements of a plug means into and out of said housing means into movements of said first contact members to selectively engage various second contact members to transfer between the control circuits of the device.
A transfer apparatus for interconnecting one of a pair of electrical control circuits of a device, said apparatus comprising:
- housing means having a central cavity and including means for receiving a male plug therein;
- means for removably retaining a plug within said cavity when a plug is inserted into said housing, including means for electrically engaging a plug therein;
- a plurality of resilient and movable leaf spring contact means each having a free end disposed within said cavity, and a plurality of generally stationary contact means extending into said cavity, each of said stationary contact means having a contact element disposed on its free end within said cavity, said leaf spring and stationary contact means selectively interconnecting one of the pair of electrical circuits of the device for which said transfer apparatus is adapted;
- and
- means within said cavity for electrically isolating said leaf spring contact means from one another and including means for translating the insertion and withdrawal movements of a plug into and out of said cavity into movements of said leaf spring contact means to electrically engage the free ends thereof with selected stationary contact means to selectively interconnect the electrical circuits of the device in a pre-determined manner.
Dependencies are inferred from the claim text.