Method and apparatus for coating a web
AssigneeBeloit Corporation
InventorL. H. Busker
Life of this patent
Estimating the term…
Abstract
A coating apparatus and method is disclosed for applying coating material onto a web supported by a backing member. The apparatus includes a housing which is disposed closely adjacent to the backing member. The arrangement is such that the web supported by the backing member moves between the backing member and the housing. The housing defines a chamber having an open end facing towards the backing member. A coating shoe slidably cooperates with the web, the shoe being movably disposed within the chamber. The shoe defines a cavity which is connected to a source of pressurized coating material. The cavity has an exposed face towards the web such that the coating material flows into the cavity and through the exposed face for applying the material onto the web.
Claims11
A coating apparatus for applying coating material onto a web supported by a backing member, said apparatus comprising:
- a housing disposed closely adjacent to a backing member such that a web supported by the backing member moves between the backing member and said housing, said housing defining a chamber having an open end, said open end facing towards the backing member;
- and
- a coating shoe slidably cooperating with the web, said shoe being movably disposed within said chamber, said shoe defining a cavity which is connected to a source of pressurized coating material, said cavity having an open side facing towards the web such that the coating material flows into said cavity and through said face open side for applying the material onto the web.
A coating apparatus for applying coating material onto a web supported by a backing member, said apparatus comprising:
- a housing disposed closely adjacent to a backing member such that a web supported by the backing member moves between the backing member and said housing, said housing defining a chamber having an open end, said open end facing towards the backing member, said chamber being connected to a pressurized fluid source;
- a coating shoe slidably cooperating with the web, said shoe being movably disposed within said chamber, said shoe defining a cavity which is connected to a source of pressurized coating material, said cavity having an open side facing towards the web such that the coating material flows into said cavity and through said open side for applying the material onto the web;
- said coating shoe further including:
- a leading portion and a trailing portion, said cavity being disposed between said leading and said trailing portions;
- and
- said leading portion defining a plurality of channel means for providing a wedge of coating material between said leading portion and the web.
A method for applying coating material onto a web supported by a backing member, said method comprising the steps of:
- moving a web supported by a backing member such that the web is disposed between the backing member and a housing which defines a chamber having an open end, the open end facing towards the backing member;
- and
- urging a coating shoe into cooperating relationship with the web, the shoe being movably disposed within the chamber, the shoe defining a cavity which is connected to a source of pressurized coating material, the cavity having an open side facing towards the web, the arrangement being such that the coating material flows into the cavity and through the open side for applying the material onto the web.
Dependencies are inferred from the claim text.