Patent application number | Description | Published |
20110100746 | VISCOELASTIC PHONONIC CRYSTAL - A sound barrier and method of sound insulation are disclosed. In one aspect of the disclosure, a sound barrier comprises a first, solid medium, such as a viscoelastic solid and a second medium, such as air. At least one of the two media forms a periodic array disposed in the other medium. The solid medium has a speed of propagation of longitudinal sound wave and a speed of propagation of transverse sound wave, the speed of propagation of longitudinal sound wave being at least about 30 times the speed of propagation of transverse sound wave. | 05-05-2011 |
20120000726 | SOLID-STATE ACOUSTIC METAMATERIAL AND METHOD OF USING SAME TO FOCUS SOUND - A phonemic crystal is made of a first solid medium having a first density and a substantially periodic array of structures disposed in the first medium, the structures being made of a second solid medium having a second density different from the first density. The first medium has a speed of propagation of longitudinal sound waves and a speed of propagation of transverse sound waves, the speed of propagation of longitudinal sound waves being approximately that of a fluid, and the speed of the propagation of transverse sound waves being smaller than the speed of propagation of longitudinal sound waves. | 01-05-2012 |
20140318886 | ACOUSTIC AND ELASTIC FLATBAND FORMATION IN PHONONIC CRYSTALS:METHODS AND DEVICES FORMED THEREFROM - A phononic device is provided suitable for attenuating mechanical vibration, as well as acoustic vibration that propagate through a medium. Through the periodic inclusion of domains of a material in a matrix that vary in the ratio of the longitudinal speed of sound (CL) and the transverse speed of sound (CT) between the domains and the matrix of equal to or greater than 2.0 and 40, respectively; improved significant attenuation of vibration is achieved. | 10-30-2014 |
20150144502 | ELECTROCHEMICALLY-ASSISTED MEGASONIC CLEANING SYSTEMS AND METHODS - An electrochemically-assisted megasonic cleaning method includes applying an electrical potential to a conductive surface immersed in solution to form bubbles of gaseous molecules produced by electrochemical reaction, and applying a megasonic field to the solution to oscillate the bubbles and clean the conductive surface without causing damage. An electrochemically-assisted megasonic cleaning system includes an electrical supply for applying electrical potential to a conductive surface immersed in solution to induce bubble formation in the solution and at the surface through an electrochemical reaction, and a transducer for applying a megasonic field to the solution to induce oscillation of the bubbles. | 05-28-2015 |
Patent application number | Description | Published |
20120325699 | Golf Bags Having a Flip Pocket and/or a Symmetric Club Separator - Golf bags may include a main compartment for holding golf clubs and a flip pocket attached with the golf bag body but movable between an engaged position and a disengaged position. The bag may further include: (a) a releasable connector system for releasably holding the flip pocket at the engaged position; (b) an anti-slip element for preventing movement of the golf bag body with respect to a securing strap; and/or (c) a divider to help keep the golf clubs separated from one another when stored in the main compartment. Optionally, an outer perimeter of the divider may be symmetric about a first axis extending in a front-to-rear direction, symmetric about a second axis extending in a side-to-side direction, and/or symmetric about a third axis extending in a top-to-bottom direction (when the golf bag is oriented in an upright manner). Methods of making and using such golf bags also are described. | 12-27-2012 |
20120325700 | Golf Bags Having a Flip Pocket and/or a Symmetric Club Separator - Golf bags may include a main compartment for holding golf clubs and a flip pocket attached with the golf bag body but movable between an engaged position and a disengaged position. The bag may further include: (a) a releasable connector system for releasably holding the flip pocket at the engaged position; (b) an anti-slip element for preventing movement of the golf bag body with respect to a securing strap; and/or (c) a divider to help keep the golf clubs separated from one another when stored in the main compartment. Optionally, an outer perimeter of the divider may be symmetric about a first axis extending in a front-to-rear direction, symmetric about a second axis extending in a side-to-side direction, and/or symmetric about a third axis extending in a top-to-bottom direction (when the golf bag is oriented in an upright manner). Methods of making and using such golf bags also are described. | 12-27-2012 |
20130092573 | Lightweight Modular Golf Bag Having External Frame - A modular golf bag having an external frame is provided. A plurality of poles connect a frame top capable of receiving golf clubs to a frame bottom. A pliable bag body internal to the plurality of poles extends between the frame top and the frame bottom such that a cavity capable of receiving golf clubs through the frame top is formed. A plurality of pole sleeves are attached to the pliable bag body. Each pole sleeve surrounds at least a portion of the length of a pole such that each pole runs through at least one pole sleeve. The plurality of pole sleeves provide structure to the pliable bag body by securing the pliable bag body to the plurality of poles in an extended position. At least one additional storage compartment may be detachably connected between at least two of the plurality of poles. | 04-18-2013 |
20130092574 | Lightweight Modular Golf Bag With Frame - A modular golf bag having an external frame is provided. Poles connect a frame top capable of receiving golf clubs to a frame bottom. A pliable bag body extends between the frame top and the frame bottom such that a cavity capable of receiving golf clubs through the frame top is formed. Poles may be affixed to the pliable bag body using internally positioned pole sleeves, one or more slits in the pliable bag body, or a combination thereof. Also, storage compartments may be detachably connected between the poles. | 04-18-2013 |
20150083618 | Lightweight Modular Golf Bag With Frame - A modular golf bag having an external frame is provided. Poles connect a frame top capable of receiving golf clubs to a frame bottom. A pliable bag body extends between the frame top and the frame bottom such that a cavity capable of receiving golf clubs through the frame top is formed. Poles may be affixed to the pliable bag body using internally positioned pole sleeves, one or more slits in the pliable bag body, or a combination thereof. Also, storage compartments may be detachably connected between the poles. | 03-26-2015 |