Shaefer
David M. Shaefer, Chuluota, FL US
Patent application number | Description | Published |
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20090148279 | GAS TURBINE BELLY BAND SEAL ANTI-ROTATION STRUCTURE - A seal strip assembly for use in a turbomachine having a plurality of stages including rotationally driven disks, and arms on opposed portions of adjoining disks to define paired arms with a space therebetween. The seal strip assembly includes a seal strip positioned in the space between the paired arms and having opposing edges for locating in slots formed in opposed faces of the paired arms. An anti-rotation block is provided, where a portion of the anti-rotation block is removably located in opposed openings formed in the paired arms and is engaged with the seal strip to resist movement of the seal strip relative to the paired arms. A detachable engagement member is detachably fastened to the anti-rotation block for maintaining the anti-rotation block in engagement with the seal strip. | 06-11-2009 |
20090191050 | SEALING BAND HAVING BENDABLE TANG WITH ANTI-ROTATION IN A TURBINE AND ASSOCIATED METHODS - The turbine includes a plurality of successive stages each having a rotatable disk and blades carried thereby. A pair of adjacent rotatable disks define an annular gap therebetween and have respective opposing sealing band receiving slots aligned with the annular gap. At least one of the rotatable disks has at least one notch therein coupled to the respective sealing band receiving slot, and a sealing band is in the opposing sealing band receiving slots to seal the corresponding annular gap. The sealing band includes at least one sealing strip and at least one movable locking tang carried thereby and extending into the at least one notch to define an anti-rotational feature for the sealing band. | 07-30-2009 |
20110268579 | GAS TURBINE SPINDLE BOLT STRUCTURE WITH REDUCED FRETTING MOTION - A spindle bolt structure is provided in a gas turbine engine. The gas turbine engine includes a rotor including a plurality of turbine disks for supporting rows of blades, a torque tube located on a compressor side of the turbine disks, and a seal disk located between the torque tube and a first stage turbine disk. The spindle bolt structure includes a plurality of spindle bolts extending through the turbine disks and disposed offset from a rotational axis of the turbine disks. The spindle bolts include a first terminal end located adjacent to the compressor side of the turbine disks, and a sleeve member is provided extending over a portion of the first terminal end of each spindle bolt and embedded within a compressor side of the seal disk for effecting a reduction in fretting movement of the spindle bolt relative to the seal disk. | 11-03-2011 |
Hank Shaefer, Newtown Square, PA US
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20090008105 | High Flow Mobile Fire Fighting System - A mobile fire fighting foam delivery system. The system can include a trailer towable behind a vehicle. The trailer includes a frame with top, bottom and side surfaces, and is formed with a stabilizing ballast assembly. The trailer is mounted with an inlet that is connected with a nozzle assembly. The nozzle assembly includes a discharge nozzle device, and is structured and configured with a limited range of motion. Also included is a pump and hose system that can provide high volume flow of water and foam to the trailer in a variety of configurations. Also included is a manifold having a main body having an outlet, a plurality of inlets coupled to the main body, and at least one pressure relief valve coupled to the main body. | 01-08-2009 |
John K. Shaefer, Knoxville, TN US
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20100127195 | IMPULSE ACTUATED VALVE - A valve for controlling flow of pressurized fluid from a confined area that is operable to relieve an overpressure condition as well as to allow flow of fluid in response to a pressure relief command. The valve including a valve body with a fluid passage therethrough, a reverse buckling rupture disc in the valve body in normally blocking relationship to the flow of fluid through the passage, and a selectively actuatable device carried by the valve body adjacent the convex surface. The actuatable device is operable to disrupt, without puncturing, the disc so as to initiate reversal and rupture of the disc and to permit flow of the pressurized fluid through the passage. | 05-27-2010 |
Leonard Arthur Shaefer, Leesburg, VA US
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20080215562 | System and Method for Improved Name Matching Using Regularized Name Forms - A system and method for improved name matching using regularized name forms is presented. A regularization rule engine uses culture-specific regularization rules to iteratively convert candidate names and query names to a canonical form, which are regularized candidate names and regularized query names, respectively. The regularization rules are context-sensitive or context-free rules that pertain to a name's originating culture. Subsequently, a name search engine compares the regularized query name with the regularized candidate names and identifies the regularized candidate names that meet a particular regularization matching threshold. In turn, name search engine selects the candidate names that correspond to the identified regularized candidate names and provides the selected candidate names to a user. | 09-04-2008 |
Michael Shaefer, Port Orchard, WA US
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20130269330 | SYSTEMS AND METHODS FOR ENERGY STORAGE AND RECOVERY USING GAS EXPANSION AND COMPRESSION - In various embodiments, energy-storage systems are based upon an open-air arrangement in which pressurized gas is expanded in small batches from a high pressure of, e.g., several hundred atmospheres to atmospheric pressure. The systems may be sized and operated at a rate that allows for near isothermal expansion and compression of the gas. | 10-17-2013 |
Robert Shahram Shaefer, Camarillo, CA US
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20150235717 | CELLULAR STRUCTURES WITH INTERCONNECTED MICROCHANNELS - A method for fabricating a cellular tritium breeder component includes obtaining a reticulated carbon foam skeleton comprising a network of interconnected ligaments. The foam skeleton is then melt-infiltrated with a tritium breeder material, for example, lithium zirconate or lithium titanate. The foam skeleton is then removed to define a cellular breeder component having a network of interconnected tritium purge channels. In an embodiment the ligaments of the foam skeleton are enlarged by adding carbon using chemical vapor infiltration (CVI) prior to melt-infiltration. In an embodiment the foam skeleton is coated with a refractory material, for example, tungsten, prior to melt infiltration. | 08-20-2015 |