WELKER, INC. Patent applications |
Patent application number | Title | Published |
20150198157 | LIQUID SAMPLE PUMP WITH INTEGRAL SELF-CLEANING FILTER ELEMENT - In combination, a liquid sample pump and an integral self-cleaning filter element will elongate the maintenance interval for the pump which saves on time and labor costs. The filter element itself is small, economical to make and forms an integral part of the liquid sample pump. A flow passageway continuously directs turbulent liquid to the underside of the filter element to sweep debris from the filter element and return such debris to the pipeline. When it is necessary to service the liquid sample pump, it is quick and easy to remove and replace the filter element, which also saves on time and labor costs. A bleed valve assembly allows air to be bled from the sample pump prior to operation, enhancing seal life. An optional muffler assembly excludes insects from the inside of the sample pump, again elongating maintenance intervals. An optional return valve assembly allows unused sample to be returned to the pipeline, thus benefitting the environment. The filter element may be formed from a metal screen or a sintered metal disk. | 07-16-2015 |
20140208873 | GASOLINE BLEND SPOT SAMPLING SYSTEM AND METHOD - A gasoline blend spot sampling system and method including an adjustable volume mechanism for retaining an adjustable volume of gasoline for sampling, a coolant system integrated with the adjustable volume mechanism, and a sample collection assembly using a blunt-end tube for use with an open-mouthed bottle. Various three-way valves are actuated to route gasoline through various stages of a sampling process, from a gasoline fast loop to a purge loop to a gasoline capture stage to a sample bottling stage. | 07-31-2014 |
20110192237 | TRANSPORTABLE LIQUID PHASE LNG SAMPLE APPARATUS AND METHOD - A transportable Sample Apparatus includes a vacuum flask (Dewar flask) and integral sample container. The Sample Apparatus may be used to capture a liquid phase LNG sample at a custody transfer point and to transport the sample to a laboratory for analysis. Vaporization of the liquid phase sample may take place at a variety of different locations. For example, vaporization may begin and/or be completed during transport from the collection point to the laboratory. In another example, vaporization may begin and be completed in the laboratory. In yet another example vaporization may begin during transport and be completed at the laboratory. The gas phase sample is typically analyzed by a gas chromatograph for Btu content, among other things. Prior to capture of the sample, the Sample Apparatus goes through a pre-cool cycle to chill a sample end cap and other components to a temperature compatible with capture of a cryogenic liquid sample which is about −250° F. | 08-11-2011 |
20100319468 | UNBURNED FLARE GAS SAMPLE SYSTEM - A sample system withdraws a sample of unburned flare gas from a feed line and delivers a liquid free sample to a high pressure gas chromatograph for analysis. In one embodiment, the sample system may be fitted with an automatic insertion system. In other embodiments, the sample system may be static or have manual insertion. The sample system includes a liquid separator to separate liquids from the sample. In one embodiment, the sample system is housed in an insulated and heated cabinet to prevent condensation of liquids as the sample moves through the sample system. | 12-23-2010 |
20100313656 | SIGHT GLASS WITH LIQUID SEPARATOR - A liquid separator with at least one flow passageway is used to detect and remove the presence of entrained liquids from natural gas during spot sampling procedures prior to analysis of the sample by a gas chromatograph. In one embodiment, the at least one flow passageway directs at least a portion of the gas flow to impinge upon the inside surface of a sight glass and swirl around in a chamber which may cause droplets of liquid to coalesce on the inside of the sight glass and may cause a fog to form inside the chamber, all of which make it easier to see the existence of liquids in the natural gas. The at least one flow passageway is less expensive to fabricate that some prior art flow directing elements. | 12-16-2010 |
20100313655 | SIGHT GLASS WITH A FLOW DIRECTING ASSEMBLY - A sight glass with a flow directing assembly is used to detect the presence of entrained liquids in natural gas during spot sampling procedures. The flow directing assembly directs at least a portion of the gas flow to impinge upon a first transparent window and swirl around in a chamber of the sight glass which may cause droplets of liquid to form on the inside of the window and may cause a fog to form inside the chamber, all of which make it easier to see the existence of liquids in the natural gas. At least one embodiment of this sight glass also acts as a fluid separator, collecting the liquids in the chamber which may then be periodically drained. | 12-16-2010 |
20100089454 | REMOVABLE AUTOMATIC INSERTION DEVICE WITH SEGMENTED DRAINAGE SHAFT - A removable automatic insertion device with segmented drainage shaft may be used to remove unwanted liquids from pipelines, tanks and other pressurized vessels. The insertion device inserts and withdraws the drainage shaft, one segment at a time into the pipeline or other pressurized vessel. A termination assembly is connected to the subsurface end of the drainage shaft and includes a normally closed drainage valve assembly. After insertion of the drainage shaft, the automatic insertion device is removed and a surface mounted discharge assembly is connected to the drainage shaft. To open the drainage valve assembly and commence drainage of unwanted liquids, pressurized fluid is injected through the discharge assembly, and a segmented hollow actuation tube to open the subsurface drainage valve assembly. Unwanted fluids then pass through the open drainage valve assembly, the drainage shaft to the surface mounted discharge assembly. | 04-15-2010 |
20100083469 | REUSABLE CARRYING HANDLE WITH A CABLE TIE - The present invention relates to various embodiments of a reusable handle with a cable tie for carrying a bag. A handle can be connected to an open end of a bag by means of a cable tie to provide a bag carrying system. The present handle generally comprises a body having a hand-grip portion and a strap receiving channel defined therein; and a mounting section attached to the body, the mounting section including a socket defined therein and adapted for receiving a cable tie such that a locking head of the cable tie is held in place within the socket. A distal end of the strap is inserted through the socket, through the strap receiving channel and through the strap receiving opening of the cable tie to form a loop such that the strap is locked within the locking head. | 04-08-2010 |
20100071484 | LNG SAMPLING CYLINDER AND METHOD - A sampling cylinder for LNG (liquefied natural gas) is provided. The sampling cylinder includes a piston cylinder arrangement having opposite end members closing the chamber inside the cylinder. Various porting arrangements are provided for allowing fluid to be fed into a chamber inside the cylinder on opposite sides of a piston. A sample chamber is provided at one end member of the cylinder. The end member containing the sample chamber is also provided with a heat exchanger that may be connected to a source of coolant and preferably the LNG to be sampled to effect cooling of the end member at least partially prior to the sample chamber having a sample of LNG injected thereinto. | 03-25-2010 |
20100012201 | LNG COLLECTION SYSTEM AND METHOD - An LNG sampling system is provided which includes a sampling probe. The sampling probe includes a backflow prevention check valve positioned within the probe adjacent the inlet end. The probe is inserted into a source of LNG to extract samples of LNG by providing a pressure differential between the probe piping system and the pressure of the LNG within the source. In the event the pressure in the piping system increases above a predetermined amount, the check valve will close preventing backflow of LNG from the sampling system back into the source. | 01-21-2010 |
20090137165 | NEWTONIAN THRUST COWL ARRAY - The three-way valve allows fluid flow to be selectively directed to a run outlet, a bypass outlet or both at the same time. The three-way valve includes a flow diffuser with a primary valve seat positioned opposite a bypass valve seat. Choke points and flow restrictions, strategically positioned in the flow diffuser create a substantially flat velocity profile downstream of the bypass outlet. Larger versions of this three-way valve may be used in Vertical Takeoff and Landing (“VTOL”) aircraft. Other versions may be used in ships and other watercraft. | 05-28-2009 |