Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
238 words
Heat transfer apparatus adapted to lie along the outer surface of a pipe and releasably secure an elongate heating or cooling means along the pipe, said apparatus being characterised by an elongate heat conductive base member (3) having a wall sufficiently flexible to conform to the radius of curvature of the outer circumference of the pipe (2), a resilient side wall (4) extending from the side of the base member (3) remote from the pipe and with the base member at least partially defining a longitudinally extending cavity (5) that is suitably sized to contain the heating or cooling means (7), and has a longitudinally extending entrance-way (6) that is suitably sized to permit the heating or cooling means (7) to be inserted into and removed from the cavity (5), said side wall being shaped to press uniformly against the heating or cooling means (7) and urge said means against the base member (3) to provide a more effective heat transfer contacting relationship there between, and means 10 disposed along the length of the apparatus for securing the apparatus to the outer surface of the pipe, said securing means being adapted to provide a secured heat transfer contacting relationship therebetween and designed so as not to interfere with the entrance way (6) in order that the heating or cooling means can be inserted into and removed from the cavity without having to release the apparatus from the pipe.
Claim 2
Dependent Claim
238 words
Heat transfer apparatus adapted to lie along the outer surface of a pipe and releasably secure an elongate heating or cooling means along the pipe, said apparatus being characterised by an elongate heat conductive base member (3) having a wall sufficiently flexible to conform to the radius of curvature of the outer circumference of the pipe (2), a resilient side wall (4) extending from the side of the base member (3) remote from the pipe and with the base member at least partially defining a longitudinally extending cavity (5) that is suitably sized to contain the heating or cooling means (7), and has a longitudinally extending entrance-way (6) that is suitably sized to permit the heating or cooling means (7) to be inserted into and removed from the cavity (5), said side wall being shaped to press uniformly against the heating or cooling means (7) and urge said means against the base member (3) to provide a more effective heat transfer contacting relationship there between, and means 10 disposed along the length of the apparatus for securing the apparatus to the outer surface of the pipe, said securing means being adapted to provide a secured heat transfer contacting relationship therebetween and designed so as not to interfere with the entrance way (6) in order that the heating or cooling means can be inserted into and removed from the cavity without having to release the apparatus from the pipe.
Claim 3
Dependent Claim
51 words
Apparatus as claimed in claim 1 characterised in that a pair of such resilient side walls (4) are provided said side walls extending towards each other over the base member to define the longitudinally extending cavity between the walls and the base member and the longitudinally extending entrance-way into the cavity.
Claim 4
Dependent Claim
65 words
Apparatus as claimed in claim 2, characterised in that tne side walls (4) end in arcuate curves over the base member, each of said curves being shaped to enhance the movement of the heating or cooling means (7) into and out of the cavity (5) and to contribute to the manner in which the side walls (4) press against said means contained in the cavity.
Claim 5
Dependent Claim
41 words
Apparatus as claimed in claim 1, characterised in that the resilient side wall (4) extends over the base member to define the cavity (5) and ends in a spaced apart relationship with the base member to define the entrance way (6).
Claim 6
Dependent Claim
76 words
Apparatus as claimed in any preceding claim, characterised in that the base member (3) has at least one protuberance (8) disposed on the side of the base member that faces towards the cavity (5) and extends into the cavity to provide a longitudinally extending surface for positioning the heating or cooling means (7) on the base member and an increased area of heat transfer contacting relationship between the heating or cooling means and the base member.
Claim 7
Dependent Claim
77 words
Apparatus as claimed in claim 5, characterised in that at least one protuberance (8) is in the form of an arch in the wall of the base member (3) having a radius curvature on the side of the base member that faces towards the pipe (2) and increases as a result of the base member wall moving radially inwardly towards the pipe in the region of the arch during the the process of securing the apparatus thereto.
Claim 8
Dependent Claim
59 words
Apparatus as claimed in claim 5 or claim 6, characterised in that two protuberances (8) extend into the cavity and are spaced-apart to provide a longitudinally extending trough therebetween for the positioning of the heating or cooling means (7) on the base member and an increased area of heat transfer contacting relationship between said means and the base member.
Claim 9
Dependent Claim
54 words
Apparatus as claimed in claim 6, characterised in that a deformable heat conductive material (9) is disposed in the arch between the base member and the pipe, said material being pressed against the outer surface of the pipe in response to the wall of the base member moving radially inwardly towards the pipe .
Claim 10
Dependent Claim
48 words
Apparatus as claimed in any preceding claim further characterised by a coating of deformable heat conductive material (9) disposed between the pipe and the base member that is pressed therebetween during the securement process to enhance the heat transfer contacting relationship between the pipe and the base member.
Claim 11
Dependent Claim
61 words
10 Apparatus as claimed in claim 1 characterised in that the side wall (4) ends in an arcuate curve over the base member, said curve being shaped to enhance movement of the heating or cooling means into and out of the cavity and to contribute to the manner in which the side wall presses against said means contained in the cavity.
Claim 12
Dependent Claim
21 words
Apparatus as claimed in any preceding claim characterised in that the side wall (4) is integral with the base member (3).
Claim 13
Dependent Claim
32 words
Apparatus as claimed in any preceding claim characterised in that the means for securing the apparatus to the pipe comprises straps (10) disposed at spaced intervals along the length of the apparatus.
Claim 14
Dependent Claim
29 words
Apparatus as claimed in any preceding claim, characterised in that the means for securing the apparatus to the pipe is provided by a layer (16) of adhesive disposed therebetween.
Claim 15
Dependent Claim
21 words
Apparatus as claimed in any preceding claim, characterised in that the heating means is an electrical resistance heating wire or cable.
Claim 16
Dependent Claim
28 words
Apparatus as claimed in any preceding claim, characterised in that the heating or cooling means is a tube through which either a heated or cooled medium is conveyed.
Claim 17
Dependent Claim
45 words
Apparatus as claimed in any preceding claim, characterised in that a heat insulative material is disposed between the base member and the outer surface of the pipe so as to further control the heating or cooling of the pipe by the heating or cooling means.
Claim 18
Dependent Claim
34 words
Apparatus as claimed in any preceding claim, characterised in that a thermally insulative material is disposed on at least one of the surfaces of the side wall or walls for improving the thermal efficiency.