BRIDGED SLOT ON THE INSULATING AND SEATING CUP OF A BIMETALLIC PIPE SURFACE TEMPERATURE THERMOMETER

Abstract

An improvement to bimetallic pipe thermometers utilizing insulating tubular seats. The present invention improves the insulating tubular seat by closing off the tail slot along a proximal end thereof with a bridge or stop. Going forward, users of such bimetallic pipe thermometers no longer need worry about the tail of the bimetallic coil sensor unintentionally slipping out of what is currently an opened-ended tail slot.

Claims

1. A method of improving a bimetallic pipe thermometer utilizing a tubular seat with an open-ended tail slot that extends longitudinally along a sidewall of the tubular seat, wherein the bimetallic pipe thermometer comprises a bimetallic coil sensor configured to convert temperature change to vertical mechanical displacement of a tail of the bimetallic coil sensor, the method comprising: calibrating the bimetallic coil sensor by confining said tail in said open-ended tail slot until it is finally calibrated; and closing off a proximal end of the open-ended tail slot with a stop.

2. The method of claim 1, wherein the stop provides a stop curvature continuous with a curvature of a periphery of the tubular seat for improving installation of the bimetallic pipe thermometer to a circumference of a conduit.

3. A tubular insulating seat for housing a bimetallic coil sensor with a tail, the tubular insulating seat comprising: a longitudinal slot extending longitudinally along a sidewall of the tubular insulating seat so that the tail protrudes through the longitudinal slot, wherein the longitudinal slot is closed off at a proximal end of the tubular insulating seat, and wherein the longitudinal slot extends in a direction parallel with a central axis of the bimetallic coil sensor.

4. The tubular insulating seat of claim 3, further comprising: a curvature along the proximal end for interfacing with a conduit.

5. The tubular insulating seat of claim 4, wherein the bimetallic coil sensor is disposed adjacent or at the proximal end in such a way as to operatively associate with said conduit.

6. The tubular insulating seat of claim 5, further comprising: a top plate along a distal end of the tubular insulating seat.

7. The tubular insulating seat of claim 3, wherein the bimetallic coil sensor is configured to convert temperature change to a vertical mechanical displacement of said tail confined in said longitudinal slot.

8. The tubular insulating seat of claim 7, wherein the vertical mechanical displacement is in a direction that is longitudinally relative to said sidewall.

9. The tubular insulating seat of claim 6, further comprising: a clip operatively associated with the top plate; the clip having two ends extending beyond two diametrically opposing sides, respectively, of the tubular insulating seat; and an arcuate clamp that interconnects said two ends and said conduit.

10. The tubular insulating seat of claim 9, wherein the bimetallic coil sensor is configured to convert a temperature change to a vertical mechanical displacement of said tail confined in said longitudinal slot, and wherein the vertical mechanical displacement is in a direction that is longitudinally relative to said sidewall.

11. The tubular insulating seat of claim 10, wherein the closed-off proximal end prevents a vertical mechanical displacement of the tail.

12. The tubular insulating seat of claim 3, wherein the closed-off proximal end forms a stop curvature continuous with a curvature of a periphery of the tubular seat for improving installation of the bimetallic pipe thermometer to a circumference of a conduit.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0009] FIG. 1 is a top perspective view of an exemplary embodiment of the present invention;

[0010] FIG. 2 is a bottom perspective view of an exemplary embodiment of the present invention;

[0011] FIG. 3 is a bottom perspective view of an exemplary embodiment of the present invention, shown in use, with pipe 30 shown in hidden lines for clarity;

[0012] FIG. 4 is an exploded perspective view of an exemplary embodiment of the present invention;

[0013] FIG. 5 is a section view of an exemplary embodiment of the present invention, taken along line 5-5 in FIG. 3; and

[0014] FIG. 6 is a top perspective view of an exemplary embodiment of the present invention, taken along line 6-6 in FIG. 3.

DETAILED DESCRIPTION OF THE INVENTION

[0015] The following detailed description is of the best currently contemplated modes of carrying out exemplary embodiments of the invention. The description is not to be taken in a limiting sense, but is made merely for the purpose of illustrating the general principles of the invention, since the scope of the invention is best defined by the appended claims.

[0016] Broadly, an embodiment of the present invention provides an improvement to bimetallic pipe thermometers utilizing insulating tubular seats. The present invention improves the insulating tubular seat by closing off the tail slot along a proximal end thereof with a bridge or stop. Going forward, users of such bimetallic pipe thermometers no longer need worry about the tail of the bimetallic coil sensor unintentionally slipping out of what is currently an opened-ended tail slot.

[0017] Referring now to FIGS. 1 through 6, the present invention may include a bridged slot on the insulating and seating cup 12 of a bimetallic pipe thermometer 18.

[0018] The insulating and seating cup 12 may have a top plate 10 at a distal end thereof, wherein the top plate 10 associates with a clip 24 of the bimetallic pipe thermometer 18. The clip 24 may engage a clamp 26 that circumscribes the circumference of a conduit 30 to secure the curved surface of the conduit 30 to the proximal end 40 of the insulating and seating cup 12. The proximal end 40 may have a curved edge to conform to said circumference. This longitudinal curvature of the insulating and seating cup 12 extends out of plane of a cross section of the insulating and seating cup 12.

[0019] The insulating and seating cup 12 is tubular whose lumen is dimensioned to house a bimetallic sensor coil 20 of the bimetallic pipe thermometer 18. The bimetallic sensor coil 20 is secured adjacent to the proximal end 40 so that when the proximal end 40 is secured to the conduit (by way of the clip 24, clamp 26, and fasteners 28) and the bimetallic sensor coil 20 operatively associates with (is seated on) a portion of the circumference of the conduit 30 to sense the temperature (gradient) thereof.

[0020] The insulating and seating cup 12 has a longitudinal slot 14, as shown in the illustrations. The bimetallic sensor coil 20 has an indicator tail 22 extending from the helical (rolled spiral) bimetallic sensor coil 20. The indicator tail 22 may be adapted to move as a function of the sensed temperature of the conduit 30, thereby providing easily readable indications of the temperatures sensed. The indicator tail 22 protrudes through the slot 14. The slot 14 would be otherwise open along the proximal end 40 but for a bridge 16. In certain embodiments, the slot 14 can simply be machined to include the closed-end bridge. In other embodiments, the bridge 16 may be retrofitted to a previous open slot 14. The addition of the closed-end, bridged slot would facilitate the handling and installation of the pipe thermometer, as the possibility of the tail 22 of the bimetallic sensor slipping out of the slot 14 and the thermometer losing calibration or being damaged is eliminated with the present invention. Thus, the present invention improves overall reliability of the thermometer.

[0021] Additionally, in any situation that this style of bimetallic pipe thermometer is used, the present invention would eliminate problems caused by an open-ended slot on the insulating and seating cup.

[0022] It should be understood, of course, that the foregoing relates to exemplary embodiments of the invention and that modifications may be made without departing from the spirit and scope of the invention as set forth in the following claims.