Thermal sensing device for control circuits

Claim 2

A temperature sensing device comprisigng a casing having an opening in one end, said casing comprising two similar open boxlike casing members and means securing said casing members together with the open sides thereof facing toward the other casing member, a heat conducting member disposed in said opening and comprising a portion having a substantial surface exposed at said one end of said casing and having spaced projections extending into said casing, a temperature sensitive element in said casing adjacent said opening, each casing member having projections from a wall thereof forming shoulders, said shoulders cooperating to retain said element in said casing, and means in said casing for positioning said element between two of said projections on said heat conducting member.

Claim 3

A temperature sensing device as defined in Claim 1 further characterized by a body of heat conducting cement interconnecting said element and said projections on said heat conducting member.

Claim 4

A temperature sensing device comprising a casing comprising a generally rectangular body having a concave end portion defining an opening, a heat conducting member disposed in said opening and comprising a semicylindrical portion nested in said concave end portion of said casing and having a substantial surface exposed at said casing end portion, said heat conducting member comprising spaced projections extending into said casing, a temperature sensitive element in said casing adjacent said opening, means in said casing for positioning said element between two of said projections on said member, and spring means engaging said casing and adapted to urge said casing in a direction to maintain said heat conducting member in engagement with an object at said casing end portion.

Claim 5

A temperature sensing device comprising a casing comprising a generally rectangular body having a concave end portion defining an opening, a heat conducting member disposed in said opening and comprising a semicylindrical portion nested in said concave end portion of said casing and having a substantial surface exposed at said casing end portion, said heat conducting member comprising spaced projections extending into said casing, a temperature sensitive element in said casing adjacent said opening, means in said casing for positioning said element between two of said projections on said member, and spring means engaging said casing and adapted to urge said casing in a direction to maintain said heat conducting member in engagement with an object at said casing end portion.

Claim 6

A temperature sensing device comprising a casing having an opening in one end, a heat conducting member disposed in said opening and comprising a portion having a substantial surface exposed at said one end of said casing and having spaced projections extending into said casing, a disc-shaped temperature sensitive element in said casing adjacent said opening, means in said casing for positioning said element between two of said projections on said member, said element having terminal wires extending from opposite faces, and said casing comprising wall members forming guide channels for said terminal wires, respectively.

Claim 7

A temperature sensing device comprising a casing having an opening in one end, a heat conducting member disposed in said opening and comprising a portion having a substantial surface exposed at said one end of said casing and having spaced projections extending into said casing, a disc-shaped temperature sensitive element in said casing adjacent said opening, means in said casing for positioning said element between two of said projections on said member, said element having terminal wires extending from opposite faces, and said casing comprising wall members forming guide channels for said terminal wires, respectively.

Claim 8

In a device for sensing the temperature of an object: a. a support casing; b. a temperature sensitive element disposed in said casing and defining at least two major surfaces; c. a heat conducting member supported by said casing and comprising: i. a first heat transfer face extending along an external side of said casing and configured to provide for heat transfer relationship with the object; ii. at least second and third heat transfer faces extending into said casing and closely adjacent respective ones of said major surfaces of said temperature sensitive element to provide for heat transfer between said second and third heat transfer faces and said respective major surfaces; iii. said heat conducting member constructed to provide for relatively low impedance conductive heat flow between said first heat transfer face and said second and third heat transfer faces; and, d. support means for supporting said casing with said firsT heat transfer face in heat exchange relationship with the object.

Claim 9

In a device for sensing the temperature of an object: a. a support casing; b. a temperature sensitive element disposed in said casing and defining at least two major surfaces; c. a heat conducting member supported by said casing and comprising: i. a first heat transfer face extending along an external side of said casing and configured to provide for heat transfer relationship with the object; ii. at least second and third heat transfer faces extending into said casing and closely adjacent respective ones of said major surfaces of said temperature sensitive element to provide for heat transfer between said second and third heat transfer faces and said respective major surfaces; iii. said heat conducting member constructed to provide for relatively low impedance conductive heat flow between said first heat transfer face and said second and third heat transfer faces; and, d. support means for supporting said casing with said firsT heat transfer face in heat exchange relationship with the object.

Claim 10

The device as claimed in claim 5 wherein said heat sensitive element is electrically conductive and has electrical properties which change in response to changes in temperature of said element and further comprising insulating means for electrically insulating said major surfaces from said second and third heat transfer faces without substantially impeding heat transfer therebetween.

Claim 11

The device claimed in claim 5 wherein said at least two major surfaces of said temperature sensitive member and said second and third heat transfer faces extend in directions generally transverse to said first heat transfer face of said heat conductive member.

Claim 12

The device claimed in claim 7 wherein said temperature sensitive element is generally disc-shaped and said heat conducting member includes projecting portions on which said second and third heat transfer faces are defined.

Claim 13

The device claimed in claim 8 wherein said heat sensitive element is formed at least in part by material having an electrical impedance which varies in accordance with changes in the temperature of the material and further comprising electrical conductors electrically connected to said element and extending from said casing and heat conducting electrical insulating means interposed between said element and conductors and said heat conducting member.

Claim 14

The device claimed in claim 9 wherein said first heat tranfer face includes at least a portion which is shaped to conform to a portion of the object and said support means comprises a resilient member reacting between said device and the object to resiliently maintain said first heat transfer face portion in heat conducting contact with the surface portion of the object.

Claim 15

The device claimed in claim 5 wherein said first heat transfer face includes at least a portion which is shaped to conform to a portion of the object and said support means comprises a resilient member reacting between said device and the object to resiliently maintain said first heat transfer face portion in heat conducting contact with the surface portion of the object.