Trebor International, Inc.

Trebor Incorporated

New Draulics, Inc.

Michael R Dunn

Ricky B Steck

Troy Jesse Orr

Matthew J Stillings

David Kingsbury

Michael A Lind

Clay Northrop

Gregory D Moss

A mechanical pump having a unitary construction such that the fluid being pumped is prevented from leaking without requiring the use of discrete seal elements. The absence of discrete seal elements and integral coupling of various components of the pump substantially reduces the likelihood of failure of potential leak points. This allows the pump to operate continuously for a longer period and with greater reliability than previously utilized pumps. The pump can be utilized in a greater number of applications without requiring special design consideration for the fluid being pumped. The absence of discrete seal elements also reduces the cost and complexity of manufacturing the pump.

Molded disposable pneumatic pump

A fiber optic system for detecting a stroke of a pump, the fiber optic system including a first fiber optic line configured for directing light onto a portion of the pump that moves during the stroke of the pump. The system further includes a second fiber optic line configured for receiving light that has been transmitted from the first fiber optic line and reflected by the portion of the pump, wherein receipt of the light by the second fiber optic line occurs at a specified point during the stroke of the pump. The moving portion of the pump may be the diaphragm, the reciprocating portion, or any other part of the pump that cycles at regular intervals as the pump operates.

Fiber optic system for detecting pump cycles

A pump for ultra-pure fluids comprises a flexible diaphragm separating a fluid chamber from an air chamber. The diaphragm creates an airtight seal between the fluid chamber and the air chamber. Any leak from the fluid chamber into the air chamber is detected by a fiber optic system comprising an element and two optical fibers that are disposed such that light is detected by the second optical fiber only when the element is not in contact with liquid. A second fiber optic system can also be used to determine the stroke of an oscillating member by disposing the fiber optic lines at an angle calculated to reflect light off of the oscillating member when the member arrives at a predetermined location. The fiber optics are adapted to be resistant to corrosion, non-igniting, and non-contaminating.

Fiber optics systems for high purity pump diagnostics

A pump for ultra-pure fluids comprises a flexible diaphragm separating a fluid chamber from an air chamber. The diaphragm creates an airtight seal between the fluid chamber and the air chamber when a self-centering and trapezoidal shaped wedge compressively forces the diaphragm into a trapezoidal shaped perimeter cavity surrounding the chambers. Any leak from the fluid chamber into the air chamber is detected by a fiber optic system comprising two optical fibers that are disposed at an angle that is calculated to enable light to pass between the fibers only in the presence of a liquid having a predetermined index of refraction. The fiber optic system can also be used to determine the stroke of the pump by disposing the fiber optic lines at an angle calculated to reflect light off of the oscillating diaphragm when the diaphragm arrives at a predetermined location.

Free-diaphragm pump

A pump for ultra-pure fluids, such as hot, de-ionized water, processing acids, and the like, such as those used in the semiconductor processing industries, is designed to operate at greater than 10 and often 30 or 50 million cycles without failure, and to be failclean. A diaphragm pump maintains a free diaphragm, supported in a contoured chamber for driving and being driven by a piston, able to move radially, rather than absorbing misalignment or distortions. A self-energizing, self-centering, trapezoidal seal captures a constant-thickness diaphragm between a head and body forming the chamber of the pump, separating a body portion and a head portion. An oriented, calendered, multi-layered chlorofluorocarbon diaphragm may be the same material chemically as the body, head, or both. Non-reactive pilots control an operating (motive) fluid, detecting the end-of-stroke whether near the head or near the body. An integrated base controller for the operating fluid supports the apparatus, has a quick exhaust for dumping external-controller air overboard after use, and a bias disk to provide precise, digital, spool positioning within an operational range of pressure differentials. The heads may connect to the body by slip rings, so heads remain registered. Cantilevered portions of the head may absorb secondary creep and provide continued spring loading using exclusively non-reactive materials, no metals, and no elastomers, as a failclean system.

Sealing assemblies are illustrated for heaters, pumps, conduits, and the like for handling process fluids used in the semiconductor-processing industry. Clean, particle-free, nonreactive, non-trapping, ultra-pure, thermally tolerant, sealed systems are required to maintain process fluids with contaminant levels below parts per billion, or even trillion. A lip seal connects a tube, having a lip at each end, to a face of a creeping material. A creeping fluorocarbon sealing material may form the interface for reducing stress concentrations on the tube, and for providing a consistent reliable seal between the lip and the creeping face. A face seal between creeping faces may be effected by a creeping sealant there between. The faces may be loaded entirely by their own creeping structural materials. No flanges are required. In certain embodiments, retaining rings may be provided for preventing unrestrained creep of sealing assemblies. Heat soaking may accelerate primary creep and expanded fluorocarbon materials may provide creeping sealants having inherent dimensional stability in at least one dimension without relying on fillers or fibers of other materials.

Ultra-pure, non-reactive, elevated-temperature seal assembly

A hand held tool for inserting a forward end of a cylindrical insert member into an open end of a relatively thick-walled plastic tube. The tool comprises a pistol grip having a hand engaged member that is squeezed by one's hand. A push shaft is positioned at the top end of the pistol grip, with the push shaft having a forward end that extends away from the pistol grip. The hand engaged member cooperates with a mechanism for moving the push shaft forward in longitudinal movement along the longitudinal axis of the push shaft when the hand engaged member is squeezed. A housing extends from the pistol grip around and along the push shaft, with a distal end of the housing extending beyond the forward end of the push shaft. An access opening is provided in the housing through which the forward end of the push shaft is accessible for positioning the cylindrical insert member in axial alignment with the longitudinal axis of the push shaft at the forward end of the push shaft. A gripping mechanism is provided at the distal end of the housing for gripping the open end of the plastic tube and holding the open end of the tube in axial alignment with the longitudinal axis of the push shaft. As the forward end of the push shaft moves forward, it engages the cylindrical insert member and forces the leading end of the cylindrical insert member into the open end of the plastic tube.

Hand held tool for inserting a cylindrical insert in an open end of a

Chemical pumps are disclosed in which all parts wetted by the fluid being pumped are made of fluoroplastic material, with the pumps having check valves that include floating ball members and O-rings positioned adjacent to the floating ball members. The retainer area in which the O-ring is received has a diameter that is at least about 0.01 inch larger that the diameter of the O-ring so as to allow the O-ring to move slightly. The intake and discharge ports of the pumps comprise a bore extending into the body of the pump, with a threaded counterbore formed concentric with the bore to form a flat, annular surface between the bore and the counterbore at the inner end of the counterbore. A threaded fitting is received in the counterbore, and a seal is formed by compressing an O-ring against the annular surface at the inner end of the counterbore. The head of the pump is secured to the body thereof using spring type means that either (1) continuously applies a spring force against the head to force the head into sealing engagement with the body of the pump or (2) forms an expanding spring seal between the head and the body of the pump.

Reciprocating chemical pumps

A novel hydraulic tool used to cut cables, rods, bars and the like or crimp various items such as cable connectors and which is operated manually and with ease by a single man. The improved cable cutting hydraulic tool comprises dual manually held handles which centrally receive and exhaust the operating pressurized hyraulic fluid, a safety trigger assembly which prevents the inadvertent closing of the cutting or crimping jaws, and an operating trigger assembly, a control valve which directs and redirects the flow of hydraulic fluid under pressure, and a piston cylinder assembly which relatively reciprocates to displace operating rods which in turn causes the cutting jaws to close and open by rotation about a pivot pin. This cable cutting and crimping tool is light weight and compact in comparison with other contemporary designs and is much easier to handle and control during use.

Cable cutting and crimping

A novel hydraulic tool used to cut cables, rods, bars and the like or crimp various items such as cable connectors and which is operated manually and with ease by a single man. The improved cable cutting hydraulic tool comprises dual manually held handles which centrally receive and exhaust the operating pressurized hydraulic fluid, a safety trigger assembly which prevents the inadvertent closing of the cutting or crimping jaws, and an operating trigger assembly, a control valve which directs and redirects the flow of hydraulic fluid under pressure, and a piston cylinder assembly which relatively reciprocates to displace operating rods which in turn causes the cutting jaws to close and open by rotation about a pivot pin.

Growing community of inventors

Sandy, UT, United States of America

Michael R Dunn