[특허]Vacuum cup control apparatus

Vacuum cup control apparatus 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B25J-015/06 F04F-005/48
출원번호	US-0756497 (1991-09-09)
발명자 / 주소	Golden Michael J. (Sterling Heights MI)
출원인 / 주소	Blatt John A. (Grosse Pointe Farms MI 04)
인용정보	피인용 횟수 : 25 인용 특허 : 0

초록 ▼

A vacuum cup control apparatus for applying and releasing vacuum in a vacuum cup includes a venturi passage for inducing a vacuum within the vacuum cup upon the flow of pressurized air therethrough. Another air flow passage extends through the housing for injecting a flow of air under pressure to the vacuum cup to relieve the vacuum therein. A sensor senses the vacuum level attained in the vacuum cup. A feedback signal is sent by the control apparatus to the external controller as an indication that a predetermined, selectable vacuum level has been achieved. The control apparatus is responsive to the sensor and signals from an external controller for applying vacuum to the vacuum cup until a predetermined vacuum level is attained in the vacuum cup. After the initial application of vacuum and prior to the injection of air under pressure to the vacuum cup, if the vacuum level within the vacuum cup decreases below the predetermined set level, the control apparatus will automatically reapply vacuum until the predetermined vacuum level is reached. A plurality of comparators, each provided with offset reference signal inputs, are responsive to the output of the sensor and generate a plurality of discrete vacuum select levels. A selector switch selects one of the comparator outputs to specify a predetermined vacuum level in the vacuum cup.

대표청구항 ▼

A vacuum control apparatus for applying a flow or pressurized air through a venturi to create a vacuum in a vacuum responsive device, the vacuum control apparatus comprising: sensor means, disposed in fluid flow communication with a fluid flow conduit connected to the vacuum responsive device, for sensing the vacuum level applied to the vacuum responsive device and providing an output signal proportional thereto; connector means, for receiving electrical signals specifying the application and release of vacuum in the vacuum responsive device; first valve means for controlling the flow of pressurized air to the venturi; control means, responsive to the sensor means and the connector means, for controlling the selective application of a predetermined vacuum pressure to the vacuum responsive device and the re-application of vacuum to the vacuum responsive device in the event of a decrease of vacuum below a predetermined level after vacuum is applied to the vacuum responsive device, the control means including: comparator means, responsive to the sensor means output signal and a plurality of discrete, different reference signals, for comparing the sensor means output signal with each of the reference signal and generating one of a plurality of discrete outputs, each corresponding to a different vacuum level output; means for selecting one of the comparator means outputs as an output specifying a predetermined amount of vacuum to the vacuum responsive device; and first driver means, responsive to the output of the selecting means, for energizing the first valve means to supply pressurized air to the venturi to supply a specified vacuum level to the vacuum responsive device when the output signal of the sensor means indicates a vacuum level in the vacuum responsive device less than the selected vacuum level.

이 특허를 인용한 특허 (25)

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Perlman, Maurice, Auto-release venturi with vacuum switch.
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Nagai Shigekazu (Ibaraki-ken JPX) Matsushima Hiroshi (Ibaraki-ken JPX) Ito Yoshiharu (Ibaraki-ken JPX) Saitoh Akio (Ibaraki-ken JPX), Fluid pressure device.
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Michael J. Golden ; Kenneth Dellach, Method for maintaining the operating condition of a vacuum responsive device during loss and resumption of power.
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Dunkmann, Walter; Schmierer, Gernot, Method for operating a vacuum handling device.
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Cheval, Alain, Safety device.
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Schroer John M. (Arlington VA) Smith Gary E. (Berryville VA), Vacuum clamping system for assembling cabinets.
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Michael J. Golden ; Kenneth Dellach, Vacuum control apparatus for maintaining the operating condition of a vacuum responsive device during loss and resumption of power.
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Medow, Ralf; Bretzler, Markus; Krehl, Yvonne, Vacuum generating device and method for the operation thereof.
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William V. Pabst, Vacuum pressure generator circuit with non-volitile memory function.
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Morroney, Wayne D.; Wheeler, Timothy E., Valve and position control system integrable with clamp.
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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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Vacuum cup control apparatus 원문보기

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이 특허를 인용한 특허 (25)

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