Grewell
Bruce K. Grewell, Seattle, WA US
Patent application number | Description | Published |
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20090099794 | FLOW METER - A simple, passive and rugged device for measuring the flow rate of liquid. A variable area obstruction valve, a differential pressure sensor and a densitometer are combined in a single housing to provide for a highly accurate and precise measure of mass flow. | 04-16-2009 |
20110264384 | FLOW METER - A simple, passive and rugged device for measuring the flow rate of liquid. A variable area obstruction valve, a differential pressure sensor and a densitometer are combined in a single housing to provide for a highly accurate and precise measure of mass flow. | 10-27-2011 |
20120285259 | FLOW METER - A simple, passive and rugged device for measuring the flow rate of liquid. A variable area obstruction valve, a differential pressure sensor and a densitometer are combined in a single housing to provide for a highly accurate and precise measure of mass flow. | 11-15-2012 |
David Grewell, Ames, IA US
Patent application number | Description | Published |
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20080314498 | Apparatus and Method for Ultrasonic Processing of Laminates - A method for ultrasonic debulking a composite laminate ( | 12-25-2008 |
20110114247 | Apparatus and Method for Ultrasonic Processing of Laminates - A method for ultrasonic debulking a composite laminate includes the steps of defining a path across the laminate, the path having a starting location and an ending location and applying a force to and transmitting ultrasonic vibration into the laminate along the path, beginning at the starting location and ending at the ending location. The method further includes determining a temperature of a surface of the laminate proximate to the path and varying at least one of an amplitude of the ultrasonic vibration, the applied force, a feed rate at which the force and the ultrasonic vibration are applied along the path, an angle at which the ultrasonic vibration is applied to the laminate, and an interval at which plies of the laminate are processed, based upon the determined temperature of the surface of the laminate. | 05-19-2011 |
20120321808 | Soy based spray coating - A coating having source from plant protein that is water insoluble and sprayable. The coating is derived from soy protein or other plants and consists of chemistries that promote water stability and insolubility in water. The spraying device for such coating is an aerosol pressure driven system or similar. The coating converts from a liquid to a solid after a length of time which can be accelerated through heating. | 12-20-2012 |
20130096342 | DEPOLYMERIZATION OF POLYLACTIC ACID - The invention provides energy efficient depolymerization of polyesters such as post-consumer polylactic acid. Ultrasonic induced implosions can be used to facilitate the depolymerization. The expanding market of polylactic acid-based plastic products, such as water bottles and packaging materials, has raised concerns of contaminating the recycling stream, which is largely filled with petroleum-based plastics. Thus the development of an energy efficient and economically viable PLA recycling process is urgently needed. Post consumer PLA was exposed to methanol as the suspension media in the presence of organic or ionic salts of alkali metals such a potassium carbonate and sodium hydroxide as depolymerization catalysts to provide high quality lactic acid monomers in high yield. | 04-18-2013 |
David A. Grewell, Ames, IA US
Patent application number | Description | Published |
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20100176184 | ULTRASONIC WELDING USING AMPLITUDE PROFILING - A method of ultrasonic welding aluminum parts together includes placing the aluminum parts in an ultrasonic welding apparatus and contacting at least one of the aluminum parts with a horn tip of a weld horn of the ultrasonic welding apparatus. A weld amplitude is profiled during a weld cycle of the ultrasonic welding apparatus by producing a high weld amplitude above 55 μm at the horn tip of the weld horn during an initial period of a weld cycle and producing a low weld amplitude below 55 μm at the horn tip after the initial period. | 07-15-2010 |
Mackenzie Grewell, Ames, IA US
Patent application number | Description | Published |
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20120212003 | TERMINAL END MOUNTED PROSTHETIC DEVICE - An adaptive device for aiding a person with a medical condition is provided. The adaptive device is attached to a hand or limb and includes a platform. A bumper is positioned on the platform to aid in the positioning and securing of the device. A holder extends from the platform, either perpendicularly or at an angle to the platform. The holder is configured to receive an item to aid the individual in everyday tasks. The device also includes securing members, which may be straps that are connected to the device to further aid in securing the device to the user. Additionally, the device may include cushions or other comfort members on the bumper, platform, and/or holder. | 08-23-2012 |
Patricia C. Grewell, San Mateo, CA US
Patent application number | Description | Published |
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20090222129 | Mothod and system for order fulfullment in a distribution center - Order allocation techniques that reduce the number of stops that a container makes in the process of fulfilling a customer order is disclosed. In one embodiment, this is accomplished by first identifying a pod that stocks the largest number of different items in a customer order. Then, a second pod is identified that stocks the largest number of remaining items in the customer order. Ultimately, all items in the customer order are assigned a pod. The collection of pods defines a container path through the distribution center. | 09-03-2009 |
20120173449 | METHOD AND SYSTEM FOR ORDER FULFILLMENT IN A DISTRIBUTION CENTER - Order allocation techniques pertaining to stops that a container makes in the process of fulfilling a customer order is disclosed. In one embodiment, this is accomplished by first identifying a pod that stocks the largest number of different items in a customer order. Then, a second pod is identified that stocks the largest number of remaining items in the customer order. The collection of pods defines a container path through the distribution center. | 07-05-2012 |
20140108287 | METHOD AND SYSTEM FOR ORDER FULFILLMENT IN A DISTRIBUTION CENTER - Order allocation techniques pertaining to stops that a container makes in the process of fulfilling a customer order is disclosed. In one embodiment, this is accomplished by first identifying a pod that stocks the largest number of different items in a customer order. Then, a second pod is identified that stocks the largest number of remaining items in the customer order. The collection of pods defines a container path through the distribution center. | 04-17-2014 |