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| Number | Title | Issue Date |
| 7883094 | Offset stacked sealing system The invention is a sealing system that employs a unique array of offset components, including multiple seal rings, to provide an improved seal with enhanced functionality. In the preferred embodiment, a groove contains two canted-coil springs that are located in a s... | 02/08/2011 |
| 7448934 | Motor yo-yo The invention is a yo-yo in which at least one of the yo-yo's sides includes a powered rotation system capable of maintaining the yo-yo's rotation when the yo-yo is sleeping at the end of its tether. The system functions by converting one of the yo-yo's sides into a... | 11/11/2008 |
| 6955008 | Aerating base plate for a flowerpot An aerating base plate designed for placement in the bottom of a conventional plant receptacle, such as a flowerpot. The plate has a sidewall that extends downwardly from the perimeter of a convex top. The top includes a number of perforations that function to enabl... | 10/18/2005 |
| 6905144 | Spring-loaded ‘L’-shaped seal ring A sealing system adapted for placement into an exterior groove of a structure. The sealing system includes a seal ring having a generally ‘L’-shaped cross-section. The sealing system further includes a canted-coil spring. The seal ring includes an inner surface,... | 06/14/2005 |
| 6887122 | Yo-yo having visual indication of response setting The invention is a yo-yo that features a visual indication system capable of facilitating the setting of the yo-yo's variable response system and then providing an indication to the user of the yo-yo's responsiveness setting. Preferably, the yo-yo includes relativel... | 05/03/2005 |
| 6880863 | Flexible coupling for gas conduits A flexible joint for connection between a pair of conduits for transferring a gas, under pressure, between the conduits. The joint includes a hollow, annular inner member for connection to one of the conduits which defines a spherically shaped, convex seal receiving... | 04/19/2005 |
| 6599165 | Yo-yo having an active starburst tether engagement system The invention is a yo-yo that employs an active starburst tether engagement system located in one or both of the yo-yo's side members. The system makes use of a starburst-shaped array of movable engagement ribs that face the tether and are located near th... | 07/29/2003 |
| 6585004 | Multi-stage flow control Disclosed is system for controlling a dynamic hydraulic component, such as a hydraulic actuator or motor. The system allows for either zero, restricted or full fluid flow to the hydraulic component. This enables either no movement, slow, precise movements... | 07/01/2003 |
| 6485181 | Thrust bearing assembly Disclosed is a self-lubricating thrust bearing having a number of axially-aligned parts. The bearing is preferably in cartridge form and includes an internal circular spring. The spring is located between two adjacent disks and functions to force the disk... | 11/26/2002 |
| 6481329 | System for remote control and operation A system for remotely controlling an undersea device. The system employs a gas-pressurized liquid reservoir that can be recharged from at least one replaceable gas bottle. A pressure-regulating valve is employed to control the pressure of the liquid leavi... | 11/19/2002 |
| 5871527 | Microwaveable mixture and heating pad A mixture designed to be heated by microwave energy and a container that can inwardly contain the mixture. The mixture is in a dry form and includes a quantity of salt that functions as a heat storage medium. The mixture further includes a quantity of sta... | 02/16/1999 |
| 5848612 | Servovalve employing a rotatable feedback linkage The invention is a mechanical-type position-sensing and feedback system employed between a main stage spool valve and a pilot stage spool valve of an electro-hydraulic servovalve. The feedback mechanism makes use of a rotatable feedback link that directly... | 12/15/1998 |
| 5813898 | Yo-yo having engagement pads proximate its axle A yo-yo having unique tether engagement areas adjacent the axle. The engagement areas include an array of grooves and/or rubber pads located in the tether-facing surface of each of the yo-yo's side pieces. The grooves and/or pads extend from a point proxi... | 09/29/1998 |
| 5813897 | Yo-yo having an improved tether engagement area A yo-yo having unique tether engagement areas adjacent the axle. The engagement areas include a starburst pattern of grooves located in the tether-facing surface of each of the yo-yo's side pieces. The grooves extend from a point proximate the axle to a p... | 09/29/1998 |
| 5573036 | Electro-hydraulic servovalve having mechanical feedback The invention is a multi-stage electro-hydraulic servovalve having a mechanical feedback between the valve's main and pilot stages. The feedback mechanism makes use of an interconnected set of linkages that transform a linear motion of the main stage slid... | 11/12/1996 |
