Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
178 words
A non-return valve comprising parts (4 and 5) that form the body construction of the non-return valve, the non-return valve being furnished with a closing element closing a pipe (4a) with a center part (8) of at least the pipe diameter, which center part (8) is connected to the outer periphery (13) of the closing element by intermediate spools (7a), and/or with a closing part (6) having an opening (6a) and an outer periphery (13), characterized in that the closing element is made of an elastic and/or stiff material and that the intermediate spools (7a) between the outer periphery (13) and the center part (8) are located in a slanting position forming an angle (ã) with respect to the outer periphery (13) so that the closing element functions elastically and causes a turning movement to the closing center part (8), which produces the space required by the flow, and that the closing part (6) and its opening (6a) can be placed on the closing element, in which case the closing element is preferably made of a stiff material.
Claim 2
Dependent Claim
178 words
A non-return valve comprising parts (4 and 5) that form the body construction of the non-return valve, the non-return valve being furnished with a closing element closing a pipe (4a) with a center part (8) of at least the pipe diameter, which center part (8) is connected to the outer periphery (13) of the closing element by intermediate spools (7a), and/or with a closing part (6) having an opening (6a) and an outer periphery (13), characterized in that the closing element is made of an elastic and/or stiff material and that the intermediate spools (7a) between the outer periphery (13) and the center part (8) are located in a slanting position forming an angle (ã) with respect to the outer periphery (13) so that the closing element functions elastically and causes a turning movement to the closing center part (8), which produces the space required by the flow, and that the closing part (6) and its opening (6a) can be placed on the closing element, in which case the closing element is preferably made of a stiff material.
Claim 3
Dependent Claim
40 words
A non-return valve according to Claim 1, characterized in that the position of the pipe (4a) and the center part (8) of the closing element can be adapted to the position of the closing part (6) and its opening (6a).
Claim 4
Dependent Claim
53 words
A non-return valve according to Claim 1 or 2, characterized in that the closing element and/or closing part of the non-return valve can be tightened at its outer periphery (13) between the parts (4,5) forming the body construction of the non-return valve by means of a clamping ring (15) and/or a corresping element.
Claim 5
Dependent Claim
27 words
A double-valve, characterized in that the double-valve is formed by combining closing elements and/or closing parts of a non-return valve according to one of the preceding Claims.
Claim 6
Dependent Claim
25 words
A double valve according to Claim 4, characterized in that flows (10) and (12) travel in the double-valve inside and outside the pipe part (4a).
Claim 7
Dependent Claim
31 words
A double valve according to Claim 4 or 5, characterized in that it can be connected to an alternating under-pressure and over-pressure space for guiding the medium flow in one direction.
Claim 8
Dependent Claim
45 words
A double valve according to any of the Claims 4-6, characterized in that it comprises closing elements and/or parts located on top of each other, whereby it comprises a center part (8) closing the pipe part (4a) and a closing part closing the part (4).
Claim 9
Dependent Claim
24 words
A non-return valve according to any of the Claims 1-7, characterized in that it is adapted to be used as a pipe joint part.