U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5678617

Method and apparatus for making a drink hop along a bar or counter

A method for generating a drink which appears to hop from a remote spot on the bar or counter and take one or more leaps, before landing in a patron's glass.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 417/112 - With flexible pressure responsive sensing element (i.e., bellows, diaphragm, etc.)


Subclass of Class 417 - Pumps
Definition: Apparatus wherein said valve means is actuated by an associated
No. of patents: 9
Last issue date: 05/13/2008


NumberTitleIssue Date
7370706Gas lift valve for high pressure operation
A unique gas lift valve bellows assembly in which an internal piston incorporated within the bellows provides over travel prevention and over pressure protection during valve operation, independent of the set or operating gas pressures exerted on the gas lift valve....
05/13/2008
7341108Well downhole liquid dispenser
A well downhole liquid dispenser is disclosed in which an inlet/discharge port assembly is provided having an inlet port in fluid communication with the shoulders of a conical piston. The point of the conical piston is in physical contact with the discharge channel ...
03/11/2008
6932581Gas lift valve
A gas lift valve that is usable with a subterranean well includes a housing, a valve stem and at least one bellows. The housing has a port that is in communication with a first fluid, and the valve stem is responsive to the first fluid to establish a predefined thre...
08/23/2005
4625941Gas lift valve
A pressure-operated valve is disclosed including a choke positioned between one or more inlet ports to the valve and a flow port within the valve defined by a seat to which a valve element may be sealed to close the valve. The choke includes one or more o...
12/02/1986
4620597High pressure injection valve
Disclosed is a bellows control valve with means to pressurize the bellows chamber to very high pressure without creating a significant detrimental differential pressure across the bellows....
11/04/1986
4441519Gas lift valve and method of presetting
A gas lift valve having an adjustable stop for limiting valve stem travel such that the bellows may be preset to assure full valve opening in operation. To preset the valve, the stop is set so that the maximum stem travel is greater than that desired in o...
04/10/1984
4151857Gas lift valve
A gas lift valve for use in a continuous flow operation which has an externally biased bellows which is pressurized internally to open the valve. A noncompressible liquid surrounds the bellows and flows upwardly through a passage about the valve stem into...
05/01/1979
4128106Gas lift valve with a tension spring biasing element
A gas lift valve is characterized by a valve element biased to the first, closed, position within a valve housing by an extension spring biasing element. In the closed position the valve element interdicts communication between an annular region disposed ...
12/05/1978
4111608Gas lift system
A casing pressured operated, variable orifice valve is employed as the operating valve in a single point injection well assembly with tubing pressure (fluid) operated unloading valves acting above the operating valve to provide a continuous flow system. T...
09/05/1978
 
Sign InRegister
Username  
Password   
forgot password?