摘要:
a reservoir (10) for a scavenging system has a suction line (12) of a pump disposed within the reservoir and a float mechanism (24) that controls the fluid pathway (21) from the reservoir into the suction line (12) in response to the height (22) of the fluid within the reservoir. This system restricts large volume of air from being drawn into the suction line as the fluid level in the reservoir is lowered. The float mechanism includes a sealing arrangement (25) to restrict air from being introduced into the openings from around the float mechanism (24) during operation of the system. An apparatus (26) is also associated with the float mechanism (24) to cause the pathway (21) to be significantly lowered relative to the level (22) of the fluid and the openings (18) in the suction line (12). This system allows the fluid level (22) in the reservoir (10) to be at a very low level without drawing any appreciable amount of air into the suction line ( 12), while providing very low restriction to the flow of the fluid into the suction line (12) at high levels (22) of the fluid.
摘要:
A compression sleeve comprises a rolled blank having opposing ends coupled together to form a tubular body. A method of forming a compression sleeve comprises forming a blank having opposing ends. At least one notch with at least one relief portion is formed in the blank. The blank is rolled to form a tubular configuration, and the opposing ends are coupled to maintain the tubular configuration.
摘要:
A system for programming point of sale devices is provided. The system includes a terminal programming system that can program point of sale devices provided by different manufacturers and having different proprietary operating systems. A communications interface is connected to the terminal programming system that receives update requests from the plurality of point of sale devices, such as when the point of sale devices call in to the system or when the point of sale devices respond to a poll.
摘要:
A system for programming point of sale devices is provided. The system includes a terminal programming system that can program point of sale devices provided by different manufacturers and having different proprietary operating systems. A communications interface is connected to the terminal programming system that receives update requests from the plurality of point of sale devices, such as when the point of sale devices call in to the system or when the point of sale devices respond to a poll.
摘要:
An extensible framework provides a unified interface for data manipulation in a dynamic object-based format. A data access layer of the Transmission Control Protocol/Internet Protocol (TCP/IP) Graphical User Interface (GUI) component uses ODBC to read and write files. Four abstractions implement the framework. These are (1) a CDatabaseManager class that provides access to data stored in a database; (2) a CSpecializedFile class which composes a CDatabaseManager that abstracts the management of reading and writing to database files and provides a unified interface for use by accessors. If the base class functionality of the CSpecializedFile class is not sufficient then derived specialized file classes are implemented to override the CSpecializedFile commit method and update the file in a different-fashion and/or implement specialized get/set methods by column data item and data type; (3) a CRecordArray class which manages vectored access to information stored as objects in a CColumnData class; and (4) a CColumnData object which manages changes made to the information and saves it when requested.
摘要:
A fluidborne noise attenuator (14) comprises a dampening medium (27) which exhibits a bulk modulus (e.g., 50,000 psi to 180,000 psi) substantially greater than that of an inert gas, such as nitrogen, and substantially less than that of a hydraulic working fluid (e.g., 225,000 psi). The attenuator (14) is capable of attenuating noise levels of hydraulic fluid over wide frequency and mean system pressure ranges in contrast to conventional attenuators which are "tuned" for the attenuation of noise levels at a specific frequency and mean system pressure.
摘要:
A hydrodynamic torque converter is provided with means for varying the torque capacity of the torque converter, including means for varying the capacity of the impeller. The capacity of the impeller is varied by means of movable impeller blades which are movable radially outward to vary the radius of the respective blades.