PLITEK, LLC Patent applications |
Patent application number | Title | Published |
20150135967 | Single-Serve Cartridge with Pressure Relief Valve - An improved single-serve cartridge with a one-way gas pressure relief valve for beverage brewing, preferably in an automatic single-serve beverage brewer device such as the Keurig® Single Cup Brewing System, and cartridge components are described. In embodiments, the improved cartridge contains ground coffee or other particulate beverage medium. A one-way gas pressure relief valve permits gas produced by the ground coffee to escape from the cartridge before use of the cartridge in a brewer, thereby avoiding certain disadvantages associated with excessive pressure within the cartridge. The one-way gas pressure relief valve is also essentially liquid-tight to liquid injected into the cartridge by the brewer avoiding problems associated with liquid leakage and allowing the cartridge to function in the brewer in the same manner as an unmodified cartridge. The improved cartridge enables ground coffee, in particular, to be packaged immediately following roasting and grinding when at its optimal freshness to provide for improved beverage flavor and quality while maintaining package quality and integrity. | 05-21-2015 |
20140318653 | OIL-LESS PRESSURE RELIEF VALVES - A self contained one-way pressure relief valve for application to product packaging that does not require the addition of a sealing lubricant. Atop a base with an opening extending through the base is an adhesive-like material layer, and a dry strap of a silicone or other release film coated membrane, all of which are of gas impervious materials. The release film coated material layer covers the opening with the release film in contact with the adhesive-like material creating a surface attraction between the release film and the adhesive-like material. An intermediate layer of gas impervious material with an opening extending through such layer may be provided. A gas pervious filter material layer may be provided to block passage of fine particulates or liquid. | 10-30-2014 |
20130048635 | Oil-less pressure relief valves - A self contained one-way pressure relief valve for application to product packaging that does not require the addition of a sealing lubricant. Atop a base with an opening extending through is an adhesive-like material layer, and a dry strap of a silicone or other release film coated membrane, all of which are of gas impervious materials. The release coated material layer covering the opening with the release film in contact with the adhesive-like material creating a surface attraction between the release film and the adhesive-like material. An intermediate layer of gas impervious material with an opening extending through provides for including a gas pervious filter material layer that may be for fine particulates or liquid proof. | 02-28-2013 |
20130048125 | Oil-Less and Wetted Pressure Relief Valves Having an Integrated Filter - A one-way pressure relief valve having an integrated filter. One-way pressure relief valves may be applied to a product package to evacuate gas from the package. The integrated filter prevents materials within the package from interfering with closure or operation of the pressure relief valve. Certain pressure relief valve embodiments can be configured for optimal valve operation without need for a wetting agent while other pressure relief valve embodiments operate optimally with a wetting agent. | 02-28-2013 |