[특허]Flow through cap for attenuating any noise caused by air flow in a pneumatic servomotor

[미국특허] Flow through cap for attenuating any noise caused by air flow in a pneumatic servomotor 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F15B-009/10
출원번호	US-0640363 (1975-12-15)
발명자 / 주소	Putt James B. (South Bend IN) Welsh Jr. Harold H. (South Bend IN)
출원인 / 주소	The Bendix Corporation (South Bend IN 02)
인용정보	피인용 횟수 : 15 인용 특허 : 0

초록

A muffler for absorbing the noise created by air flowing around a cylindrical body and into the interior thereof by maintaining a predetermined cross sectional area through which the air can freely flow.

대표청구항 ▼

In a servomotor having a first shell joined to a second shell to form a closed chamber therein, the closed chamber being separated by a wall means to form a frOnt chamber and a rear chamber, the wall means having a hub means with a cylindrical body which extends through an axial opening in the second shell, said cylindrical body having an axial passageway therethrough for communicating the front chamber with the rear chamber and the rear chamber with the atmosphere, said axial passageway retaining a control valve means for regulating the communication of air into the rear chamber in response to movement of a control rod by an operator for developing a pressure differential with vacuum in the front chamber to produce an output force, muffler means for attenuating the noise created as a result of air flowing into said axial passageway from the atmosphere, said muffler means comprising: retainer means connected to said second shell and surrounding said axial opening, said retainer means having a plurality of ribs which engage said second shell to allow air to be presented to the peripheral surface of said cylindrical body; boot means having a sleeve section which surrounds the cylindrical body and a closed end section, said sleeve section having a bead on the end thereof for engaging said retainer means, said closed end section having a lip on the end thereof for engaging the control rod, said boot means establishing a flow path along the peripheral surface of said cylindrical body; cap means having a tubular member with a first shoulder thereon for engaging the cylindrical body and a second shoulder thereon for holding said closed end section of the boot means away from said axial passageway, said tubular member having a plurality of radial openings located between the first shoulder and the second shoulder to establish a fixed cross-sectional area for the flow path to assure that the air present along the peripheral surface can be freely communicated to said axial passageway; and acoustical barrier means located between said second shoulder and said closed end section of the boot means for absorbing noise caused by air inflowing to the control valve means by way of said radial openings in the cap means and the axial passageway.

이 특허를 인용한 특허 (15) 인용/피인용 타임라인 분석

Rudolph Robert S. (Osceola IN) Hoffman Thomas J. (Granger IN) Cage Jerry L. (Granger IN) Gatt Michael E. (Osceola IN), Brake vacuum modulator traction control with pressure source variable as function of engine load during incipient wheel.
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Macht Egid (Tretting DEX) Hagel Thomas (Ebern DEX), Braking-power boosters with noise suppression.
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Mason, Jeffrey Lee; Sieg, Daniel Alexander; Gutierrez, Carlos Eduardo; Glessner, John Carl; Lawless, Charles Steve, Compact high-pressure exhaust muffling devices.
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Shirai Akira (Toyoake JPX) Nagasawa Sigeo (Toyota JPX), Dust-boot for a vacuum booster.
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Haugen, Christina Granger Morrissey; Klasing, Kevin Samuel; Potokar, Christopher Jon; Proctor, Robert, High bleed flow muffling system.
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Klasing, Kevin Samuel; Fintel, Bradley Willis; Glessner, John Carl; Mason, Jeffrey Lee; Potokar, Christopher Jon; Proctor, Robert, High pressure drop muffling system.
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Potokar, Christopher Jon, High pressure muffling devices.
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Hirt William J. (Bellevue WA) Caldwell Jack H. (Kent WA) Stachowiak Claude R. (Renton WA) Rushwald Ira B. (Seattle WA) Kumasaka Henry A. (Seattle WA), Jet engine noise suppressor.
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Haugen, Christina Granger Morrissey; Fintel, Bradley Willis; Green, Brian Richard; Klasing, Kevin Samuel, Modular louver system.
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Yamakoshi Mutsuro (Sakado JPX), Muffler for brake booster system.
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Seki Masayuki (Nagano JPX), Negative pressure type booster arrangement.
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Fecher Douglas A. (Granger IN) Yoder David C. (South Bend IN), Plunger for a control valve of a servomotor.
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Takayama Toshio (Kanagawa JPX) Ando Hiromi (Tokyo JPX) Endou Mitsuhiro (Kanagawa JPX), Pneumatic servo booster.
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Nishii Michiharu (Kariya JPX) Furuta Youichi (Kariya JPX) Tsubouchi Kaoru (Kariya JPX) Murata Takeo (Toyota JPX) Shibatani Juichi (Toyota JPX) Kiriyama Takashi (Toyota JPX), Vacuum brake booster assembly.
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Boehm Peter (Frankfurt am Main DEX) Volz Peter (Darmstadt DEX) Bischoff Gilbert (Hattersheim DEX) Booten Sigmund (Oberursel DEX) Engert Klaus (Buerstadt DEX) Loew Albin (Karben DEX), Vacuum-operated brake power booster.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Flow through cap for attenuating any noise caused by air flow in a pneumatic servomotor 원문보기