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Patent No. 5996568

Process For Propelling Foodstuffs or the Like into a Crowd

A method of launching foodstuffs into a crowd for promotional and entertainment purposes.

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Class 91/297 - With passage for pilot fluid in working member


Subclass of Class 91 - Motors: expansible chamber type
Definition: Apparatus in which the output motor working member is provided
No. of patents: 7
Last issue date: 04/05/2005


NumberTitleIssue Date
6874997Pump system using a control fluid to drive a switching valve mechanism for an actuating fluid
There is provided a pump system excellent in a maintenance ability and compatibility. The pump system comprises a pump (1) for transferring a liquid by alternately supplying air to air chambers (17a, 17b) to extend and contract a p...
04/05/2005
6866485Double-acting hydraulic pressure intensifier
A double-acting hydraulic pressure intensifier includes a supply connection, a return connection, a high-pressure connection. An intensifier piston assembly includes a low-pressure piston arranged in a low-pressure cylinder and two high-pressure pistons connected to...
03/15/2005
6776080Hydraulic pressure intensifier
A hydraulic pressure intensifier includes a supply connection, a return connection, and a high-pressure connection. An intensifier piston assembly includes a high-pressure cylinder with a high-pressure piston displaceable therein and a low-pressure cylinder having a...
08/17/2004
5967921Hydraulic chain tensioner with molded plastic body
A hydraulic tensioner is designed for low cost and ease of manufacturing. A housing has a bore and a sleeve member received within the bore. A piston is slidably received within the sleeve member, forming a high pressure fluid chamber with the sleeve memb...
10/19/1999
5199504High efficiency pneumatic impacting mechanism with a plunger valve
A pneumatic impacting mechanism comprising a first cylinder and a piston with a rear air distributing bar and a front air distributing bar which simultaneously acts as an impacting head of the same, said rear distributing bar having an axially extending a...
04/06/1993
4659294Hydrualic pressure amplifier
A hydraulic pressure amplifier, e.g. for generating high water pressure for rock cutting and the like, in which a differentially displaced piston drives plungers alternately to pressurize the water and is driven by a primary fluid under the exclusively of...
04/21/1987
4645431Hydraulic pumping apparatus and method of operation
A hydraulically actuated pumping apparatus including a piston-driven, plunger-type injection pump in combination with a three-way normally closed pilot-operated relay valve, and a variable restrictor adjustable during operation of the pumping apparatus fo...
02/24/1987
 
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