Condition detecting apparatus
AssigneeRoper Industries, Inc.
InventorPaul Stuart Rose
Life of this patent
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Abstract
An apparatus (10) for determining a change in a condition in an item, and in particular overheating of a big end bearing (120). The apparatus (10) comprising a thermally reactive means (14) mountable on the big end bearing (120) and arranged to react to a temperature change so as, to move to a detectable position such that at the respective part of the stroke it can be sensed by a fixed proximity sensor (20) located spaced from the bearing (120), to activate an alarm.
Claims27
A apparatus for determining a temperature change in an item, the apparatus comprising a thermally reactive means arranged to react to a change in temperature so as to move a detectable part in one of two directions dependent on the sense in which the temperature changes, and a detection means arranged to sense the detectable part when in a predetermined proximal range, the reactive means being mountable on an item, such that the detectable part is moveable by the reactive means relative to the detection means in response to temperature changes, wherein movement of the detectable part is detected by the detection means, characterized in that the reactive means comprises a thermally expandable fluid in a closed channel which channel is provided in a bent member, such that a change in temperature causes a change in volume of the fluid which causes the member to respectively either straighten or further bend.
An apparatus for determining a temperature change in an item, the apparatus comprising a thermally reactive means arranged to react to a change in temperature so as to move a detectable part in one of two directions dependent on the sense in which the temperature changes, and a detection means arranged to sense the detectable part when in a predetermined proximal range, the reactive means being mountable on an item, such that the detectable part is moveable by the reactive means relative to the detection means in response to temperature changes, wherein movement of the detectable part is detected by the detection means, characterized in that the reactive means is mounted to a pivoted member on one side of the pivot with an equalizer member on the opposite side of the pivot, such that the reactive means causes pivoting of the member in response to a change in condition, but the equalizer member substantially prevents pivotal movement of the member due to movement to the reactive means and/or the item as a whole.
Dependencies are inferred from the claim text.