Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
224 words
Vapour degreasing apparatus comprising a tank having in its lower part a heatable reservoir for a solvent for fats, oils, lubricants or the like, and having, above said reservoir, a vapour space adapted for introducing therein metal articles or machine parts to be degreased, a cooling water piping being provided in the upper part of the tank, said piping comprising a section which functions as a heat exchanger for incoming heat released during the vapour-liquid conversion of the solvent while forming a vapour escape barrier for retaining through condensation the solvent vapour, said piping also comprising a section which functions as a heat exchanger for outgoing heat to the ambient air, a gutter being provided below the heat exchangers for catching the condensate, a pump connected to the cooling water piping for circulating the water, air exhaust means provided in the uppermost part of the tank for exhausting threads of vapour, if any, passing the vapour escape barrier, and for cooling that section of the cooling water piping which functions as the heat exchanger for said outgoing heat, and a water jacket in which the cooling water piping which functions as the heat exchanger for incoming heat is positioned, the cooling water piping being formed as a closed circuit without direct communication between the water coolant and the air of the outgoing heat exchanger.
Claim 2
Dependent Claim
224 words
Vapour degreasing apparatus comprising a tank having in its lower part a heatable reservoir for a solvent for fats, oils, lubricants or the like, and having, above said reservoir, a vapour space adapted for introducing therein metal articles or machine parts to be degreased, a cooling water piping being provided in the upper part of the tank, said piping comprising a section which functions as a heat exchanger for incoming heat released during the vapour-liquid conversion of the solvent while forming a vapour escape barrier for retaining through condensation the solvent vapour, said piping also comprising a section which functions as a heat exchanger for outgoing heat to the ambient air, a gutter being provided below the heat exchangers for catching the condensate, a pump connected to the cooling water piping for circulating the water, air exhaust means provided in the uppermost part of the tank for exhausting threads of vapour, if any, passing the vapour escape barrier, and for cooling that section of the cooling water piping which functions as the heat exchanger for said outgoing heat, and a water jacket in which the cooling water piping which functions as the heat exchanger for incoming heat is positioned, the cooling water piping being formed as a closed circuit without direct communication between the water coolant and the air of the outgoing heat exchanger.
Claim 3
Dependent Claim
30 words
Apparatus as claimed in claim 1, characterized in that the lower part of the inner wall of the water jacket is slanted outwards forming a recess for accommodating the gutter.
Claim 4
Dependent Claim
55 words
Apparatus as claimed in claim 1, characterized in that the pipes in the jacket are perforated and substantially parallel to each other, one being connected to the water discharge of the jacket and the other to the water supply of the jacket and being in communication with each other via said perforations through the water.
Claim 5
Dependent Claim
25 words
Apparatus as claimed in claim 3, characterized in that the perforations in the pipes are shaped as saw-cuts in the lower halves of said pipes.
Claim 6
Dependent Claim
48 words
Apparatus as claimed in claim 4, characterized in that the saw-cuts in the pipe connected to the water supply encompass, seen from the center line of the pipe, an arc of 120°, and the bisector of the arc angle is perpendicular to the slanting part of the wall.
Claim 7
Dependent Claim
59 words
Apparatus as claimed in claim 1, in which a separator is arranged near the tank to cause a separation based on a difference in specific weight between liquid solvent condensate and the watery phase of an emulsion applied to an article, said separator being connected interiorly to the gutter, and connected exteriorly to the closed circuit of the water.
Claim 8
Dependent Claim
28 words
Apparatus as claimed in claim 1 wherein the cooling water piping is located outside the tank, whereby introduction and removal of articles to be degreased is not impeded.