69results about How to "Remove debris" patented technology

The present invention relates to viscosified treatment fluids used in industrial and oil field operations, and more particularly, to brine-based viscosified treatment fluids comprising xanthan gelling agents, and their use in industrial and oil field operations. In one embodiment, the present invention provides a method of treating a portion of a subterranean formation comprising the steps of: providing a viscosified treatment fluid that comprises a brine and a gelling agent that comprises a clarified xanthan; and treating the portion of the subterranean formation. The present invention also provides methods of fracturing, gravel packing, and making viscosified treatments fluids. Also provided are viscosified treatment fluid compositions, and gelling agent compositions.

A clip comprising: a body portion; one or more arms connected to the body portion and projecting away from the body portion; a deformable portion of the one or more arms that is distal from the body portion; and a lip on the one or more arms that is proximate to the body portion.

A digitally controlled aspirator is provided with a processor that allows the user to select operating conditions including one or more default settings. The processor further includes sensors for sensing operational and environmental conditions and adjusts the operation of the aspirator to reflect the sensed conditions.

The present invention relates to a method of delaying space allocation for parallel copying garbage collection in a data processing system comprising a memory divided in a current area (from-space) used by at least a program thread during current program execution and reserve area (to-space), and wherein a copying garbage collection is run in parallel by several collector threads, the garbage collection consisting in stopping the program threads and flipping the roles of the current area and reserved area before copying into the reserved area the live objects stored in the current area. Such a method comprises the steps of checking (12) by one collector thread the live objects of the current area to be copied in said reserved area, the live objects being referenced by a list of pointers; storing for each live object, a record into an allocation log, this record including at least the address of the object and its size; adding (14) the object size to a total_size which is the accumulated size of all the checked objects for which a record has been stored in the allocation log; and copying (20) all the checked objects into the reserved area when the value of total_size reaches a predetermined allocation bound.

A clip comprising: a body portion; one or more arms connected to the body portion and projecting away from the body portion; a deformable portion of the one or more arms that is distal from the body portion; and a lip on the one or more arms that is proximate to the body portion.

The invention relates to enhanced heat transfer surfaces and methods and tools for making enhanced heat transfer surface. Certain embodiments include a boiling surface that include a plurality of primary grooves, protrusions and secondary grooves to form boiling cavities. The boiling surface may be formed by using a tool for cutting the inner surface of a tube. The tool has a tool axis and at least one tip with a cutting edge and a lifting edge. Methods for making a boiling surface are also disclosed, including cutting through the inner surface of a tube to form primary grooves, then cutting and lifting the inner surface to form protrusions and secondary grooves.

An improved tool and method for enhancing the surface of a heat transfer tube are provided. The tool, which can be easily added to existing manufacturing equipment, includes cutting bits that may be retracted with a housing. The cutting bits include a cutting edge to cut through the surface of a tube and a lifting edge to lift the surface of the tube to form protrusions. A method for enhancing the inner surface of the tube includes mounting a tool on a shaft, positioning the tool in the tube and causing relative rotation and axial movement between the tube and the tool to cut at least partially through at least one ridge formed along the surface of the tube to form ridge layers and lift the ridge layers to form protrusions.

The invention relates to a block storage algorithm applicable to multiple paths of concurrent-written stream media data. In the security and protection monitoring industry, requirements on the storage property of a video server are higher and higher as the project scale is continuously expanded and a high-definition front-end camera is used. A bottleneck formed by concurrent writing of hundreds of external video data of the camera into a single storage server is analyzed. A file system breaks down easily and the data is seriously lost under the abnormal condition of the server. After a disk is repeatedly covered and written, a large number of disk fragmentations are generated and the storage property is also reduced. According to the invention, the problems are analyzed, and a strategy for establishing a self-cache system through bypassing a file system layer, as well as a block storage idea and an available block searching algorithm on the basis of the block storage idea are provided. Through the online use of a practical product, the feasibility and the reliability of the block storage algorithm are verified.

A system, including an ink supply system configured to supply ink to a printhead; and an autopurge unit configured to automatically clean the printhead. The autopurge unit includes a solvent supply in fluid communication with a solvent line, a solenoid housing, and a waste container. The solenoid housing includes a first solenoid assembly disposed within an ink line, wherein the ink line is in fluid communication with the ink supply and a first outlet that is configured to be in fluid communication with the printhead; and a second solenoid assembly disposed within a solvent line. The waste container is in fluid communication with a waste delivery line having a waste inlet. The waste inlet is configured to be in fluid communication with a waste line that is in communication with the printhead so that fluid waste from the printhead is deposited into the waste container.

In a passive optical network, dynamic bandwidth allocation and queue management methods and algorithms, designed to avoid fragmentation loss, guarantee that a length of a grant issued by an OLT will match precisely the count for bytes to be transmitted to an ONU. The methods include determining an ONU uplink transmission egress based on a three-stage test, and various embodiments of methods for ONU report 700 threshold setting

A toilet flange is provided with a planar perimeter portion to assist the installer in accurately determining the distance to an adjacent wall as well as insuring the toilet fastening bolts are aligned parallel thereto. The toilet flange assembly includes a cover to store needed fastening elements while simultaneously preventing debris from entering the plumbing riser pipe. Additionally, a sleeve is provided that protects the threads of the toilet fastening bolts during construction and acts as an extendable flexible guide sleeve. The guide sleeve functionally extends the height of the toilet fastening bolt thereby assisting the toilet installer as a visual aid during installation.

A card-cleaning assembly for printers is provided. The assembly can be used in any suitable card printing apparatus, particularly thermal dye printers. Such card printers are used to print driver's licenses, employee badges, student cards, and the like. The assembly includes a card-cleaning roller and an adhesive tape cartridge. The cleaning roller contacts the card and removes dust and dirt particles and other debris from the surface of the card. The tape cartridge is attached to a pivoting arm on the printer which pivots so that the adhesive tape engages the cleaning roller and removes the debris from the roller as the roller rotates.

The disclosure provides for a wiper system for cleaning a surface of a sensor housing, such as a sensor housing positioned on top of a vehicle. The wiper system includes a plurality of windows spaced around a sensor housing, and a plurality of wipers positioned around the sensor housing, each of the wipers includes a wiper blade configured to clean a corresponding window of the plurality of windows. The wiper system further includes a drive system including a movable part coupled to a motor. The motor is configured to drive the drive system to simultaneously rotate the plurality of wipers around the sensor housing such that the plurality of wipers remove debris from the plurality of windows.

A digitally controlled aspirator is provided with a processor that allows the user to select operating conditions including one or more default settings. The processor further includes sensors for sensing operational and environmental conditions and adjusts the operation of the aspirator to reflect the sensed conditions.

A control system for a surface controlled sub-surface safety valve has first and second control lines. The first control line communicates control fluid to the sub-surface safety valve and preferably has a sump and in-line filters. Hydraulic pressure applied to the safety valve with this first control line can open the safety valve. The second control line also communicates control fluid to the sub-surface safety valve and preferably has a sump. A connecting valve is connected between the first and second control lines. The connecting valve allows control fluid to communicate from the first control line to the safety valve but prevents fluid communication from the second control line to the first control line. To open the valve, the second control line is exhausted to a reservoir. The dual control lines provide redundant control of the safety valve and can also be cycled to remove debris from the system.

An improvement on pruning shears which allows the user to quickly saw off branches and keep debris confined during use of the shears so that clean up operations after pruning are made in a shorter time and with less effort.

A reorganization system permitting reorganization in an operating implementation of the data storage and retrieval system invention disclosed in Japanese Patent Hei11-310096 Japanese Patent 3345628. The invention permits the reorganization of primary keys and blocks storing records by means of the provision of current location tables LC and new location tables LN and writing location table entries from LC to LN for one or multiple blocks in a given reorganization pass. Alternate-key indices may also be reorganized in the same fashion. Reorganization is performed continuously. The use of reorganization pointers to indicate during reorganization how far reorganization has advanced permits reorganization of a database without suspending the database while executing data retrieval, addition, updating and deletion by means of primary keys and alternate keys.