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    • 5. 发明授权
    • Guitar mute
    • 吉他静音
    • US4753147A
    • 1988-06-28
    • US97740
    • 1987-09-17
    • Michael Berardi
    • Michael Berardi
    • G10D3/04
    • G10D3/046
    • A guitar mute has a tubular body of elasticized terrycloth. Hook and eye fasteners provide selectable tension on the strings when the mute is attached to the neck of the guitar. A felt pad sewn into the middle of the mute adapts to the contour of the fingerboard. Being slightly shorter than the distance between the two outermost strings, the felt pad, along with the elastic in the tubular body, provides an even pressure to all strings. The mute can be slid along the neck with one hand without removing the mute from the guitar.
    • 吉他静音有一个弹性纤维布的管状体。 当静音连接到吉他琴颈上时,钩和眼睛紧固件可以在琴弦上提供可选择的张力。 缝在静音中间的毡垫适应指板的轮廓。 稍微短于两个最外层之间的距离,毡垫与管状体中的弹性件一起为所有的串提供均匀的压力。 静音可以用一只手沿颈部滑动,而不会从吉他上移除静音。
    • 7. 发明授权
    • Expandable and contractible hose
    • 可扩展和可收缩的软管
    • US08291941B1
    • 2012-10-23
    • US13289447
    • 2011-11-04
    • Michael Berardi
    • Michael Berardi
    • F16L11/00
    • F16L11/12F16L11/20
    • A hose which automatically expands longitudinally and automatically expands laterally upon the application of a fluid pressure is disclosed. The hose can automatically expand longitudinally up to six times its unexpanded or contracted length. Upon release of the fluid pressure within the hose, the hose will automatically contract to a contracted condition. The hose includes an inner tube made from an elastic material and an outer tube made from a non-elastic material. The inner tube is positioned concentrically within the outer tube in both a contracted condition and an expanded condition. The outer tube is secured to the inner tube only at a first end of the inner and outer tubes and at a second end of the inner and outer tubes. The outer tube moves laterally and longitudinally with respect to the inner tube when the tubes are transitioning between a contracted condition and an expanded condition.
    • 公开了一种在施加流体压力时自动纵向自动扩张并自动地横向膨胀的软管。 软管可以自动纵向膨胀至其未膨胀或收缩长度的六倍。 当释放软管内的流体压力时,软管将自动收缩至收缩状态。 软管包括由弹性材料制成的内管和由非弹性材料制成的外管。 在收缩状态和扩张状态下,内管同心地位于外管内。 外管仅在内管和外管的第一端处以及在内管和外管的第二端处固定到内管。 当管在收缩条件和膨胀状态之间转换时,外管相对于内管横向和纵向移动。
    • 8. 发明申请
    • Expandable hose assembly
    • 可扩展软管总成
    • US20120234425A1
    • 2012-09-20
    • US13488515
    • 2012-06-05
    • Michael Berardi
    • Michael Berardi
    • F16L11/20
    • F16L11/20F16L11/10F16L11/12F16L33/01F16L35/00F16L2201/60
    • A hose which automatically expands longitudinally and automatically expands laterally upon the application of a fluid pressure is disclosed. The hose can automatically expand longitudinally up to six times its unexpanded or contracted length. Upon release of the fluid pressure within the hose, the hose will automatically contract to a contracted condition. The hose includes an inner tube made from an elastic material and an outer tube made from a non-elastic material. The inner tube is positioned concentrically within the outer tube in both a contracted condition and an expanded condition. The outer tube is secured to the inner tube only at a first end of the inner and outer tubes and at a second end of the inner and outer tubes. The outer tube moves laterally and longitudinally with respect to the inner tube when the tubes are transitioning between a contracted condition and an expanded condition.
    • 公开了一种在施加流体压力时自动纵向自动扩张并自动地横向膨胀的软管。 软管可以自动纵向膨胀至其未膨胀或收缩长度的六倍。 当释放软管内的流体压力时,软管将自动收缩至收缩状态。 软管包括由弹性材料制成的内管和由非弹性材料制成的外管。 在收缩状态和扩张状态下,内管同心地位于外管内。 外管仅在内管和外管的第一端处以及在内管和外管的第二端处固定到内管。 当管在收缩条件和膨胀状态之间转换时,外管相对于内管横向和纵向移动。