Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
240 words
Apparatus for cleaning a liquid connection and securing a stroke and spring abutment for double seat pipeline switches with leakage control, comprising a pipeline switch housing, a pipeline switch drive mounted within said switch housing, two valve disks of different sizes, two concentrically mounted valve rods of different lengths, one of said valve rods being hollow, the one of longer length fitting within the other of shorter length, said inside valve rod connected to said pipeline switch drive and the smaller of the two valve disks and defining a discharge bore leading to the atmosphere, said inside valve rod upon being lifted by said drive carrying along said valve disk of larger size, said valve disks in both the closed position and the open position enclosing between themselves a leakage cavity which is connected via openings with said discharge bore, a pressing and guide part fitting over an end of the hollow valve rod, a housing surrounding a portion of the longer valve rod and defining an upper spring abutment, an upper stop surface for said pressure and guide part and a connecting opening adapted to receive a cleaning fluid, said housing and said pressing and guide part together forming a spring chamber and a spring within said spring chamber tightly closed off from the atmosphere, said spring chamber communicating through said leakage chamber with said discharge bore to provide a fluid passageway for said cleaning fluid through said apparatus.
Claim 2
Dependent Claim
240 words
Apparatus for cleaning a liquid connection and securing a stroke and spring abutment for double seat pipeline switches with leakage control, comprising a pipeline switch housing, a pipeline switch drive mounted within said switch housing, two valve disks of different sizes, two concentrically mounted valve rods of different lengths, one of said valve rods being hollow, the one of longer length fitting within the other of shorter length, said inside valve rod connected to said pipeline switch drive and the smaller of the two valve disks and defining a discharge bore leading to the atmosphere, said inside valve rod upon being lifted by said drive carrying along said valve disk of larger size, said valve disks in both the closed position and the open position enclosing between themselves a leakage cavity which is connected via openings with said discharge bore, a pressing and guide part fitting over an end of the hollow valve rod, a housing surrounding a portion of the longer valve rod and defining an upper spring abutment, an upper stop surface for said pressure and guide part and a connecting opening adapted to receive a cleaning fluid, said housing and said pressing and guide part together forming a spring chamber and a spring within said spring chamber tightly closed off from the atmosphere, said spring chamber communicating through said leakage chamber with said discharge bore to provide a fluid passageway for said cleaning fluid through said apparatus.
Claim 3
Dependent Claim
17 words
Apparatus according to claim 1, wherein said pressing and guide part defines a slide and guide part.
Claim 4
Dependent Claim
31 words
Apparatus according to claim 1, wherein the pressing and guide part is connected in form-fitting manner with the hollow rod by placing a receiving bore provided therein over said hollow rod.
Claim 5
Dependent Claim
22 words
Apparatus according to claim 1 wherein said upper stop surface is inside the spring and limits the volume of the spring chamber.
Claim 6
Dependent Claim
41 words
Apparatus according to one of claims 1 and 4, wherein said connecting opening is directed to discharge fluid tangentially to the spring chamber and perpendicularly to the axis of the valve rod into the spring chamber which forms an annular space.
Claim 7
Dependent Claim
39 words
Apparatus according to claim 5, wherein directional vectors of the axis of the connecting opening which is directed tangentially from the outside to the inside and the horizontal component of the spring pitch of the spring are the same.