Abstract: A computing system includes a processor, a program memory to store an application, and a database. The processor executes the application to store objects in the program memory, with the objects being organized in a relational hierarchy having a plurality of levels, with each object having a respective pseudo-key associated therewith. The processor writes the objects and their respective pseudo-keys in a first level of the relational hierarchy to the database to generate the first level of the relational hierarchy with real keys. The processor receives a first level key map mapping the pseudo-keys with the real keys for the objects in the first level of the relational hierarchy, reconciles the pseudo-keys for the objects in a second level of the relational hierarchy with the first level key map, and writes the objects and their respective reconciled pseudo-keys in the second level of the relational hierarchy to the database.

Abstract: A computing system includes a processor, a program memory to store an application, and a database. The processor executes the application to store objects in the program memory, with the objects being organized in a relational hierarchy having a plurality of levels, with each object having a respective pseudo-key associated therewith. The processor writes the objects and their respective pseudo-keys in a first level of the relational hierarchy to the database to generate the first level of the relational hierarchy with real keys. The processor receives a first level key map mapping the pseudo-keys with the real keys for the objects in the first level of the relational hierarchy, reconciles the pseudo-keys for the objects in a second level of the relational hierarchy with the first level key map, and writes the objects and their respective reconciled pseudo-keys in the second level of the relational hierarchy to the database.

Abstract: A bio-mass fueled boiler operating at delivered efficiencies in excess of 90%. Pre-heated, pressurized primary combustion air is supplied to a primary burn chamber via horizontal and vertical orifice containing conduits. Exhaust gases are directed past a reflective secondary burner supplying pre-heated, pressurized secondary combustion air into a secondary burn/ash collection chamber. Exhaust gases are directed from the secondary burn chamber via exhaust conduits having axial and cross-sectional shapes and wall geometries that promote internal turbulence and heat transfer. One or more gas/oil fired burners are fitted to or between the primary and secondary combustion chambers. Several operating modes are provided via associated blowers, air baffles, liquid and gas fuel conduits, pumps and sundry stove sensors and servos coupled to microprocessor control circuitry.

Abstract: A bio-mass fueled boiler operating at delivered efficiencies in excess of 90%. Pre-heated, pressurized primary combustion air is supplied to a primary burn chamber via horizontal and vertical orifice containing conduits. Exhaust gases are directed past a reflective secondary burner supplying pre-heated, pressurized secondary combustion air into a secondary burn/ash collection chamber. Exhaust gases are directed from the secondary burn chamber via exhaust conduits having axial and cross-sectional shapes and wall geometries that promote internal turbulence and heat transfer. One or more gas/oil fired burners are fitted to or between the primary and secondary combustion chambers. Several operating modes are provided via associated blowers, air baffles, liquid and gas fuel conduits, pumps and sundry stove sensors and servos coupled to microprocessor control circuitry.

Abstract: A bio-mass fueled boiler operating at delivered efficiencies in excess of 90%. Pre-heated, pressurized primary combustion air is supplied to a primary burn chamber via horizontal and vertical orifice containing conduits. Exhaust gases are directed past a reflective secondary burner supplying pre-heated, pressurized secondary combustion air into a secondary burn/ash collection chamber. Exhaust gases are directed from the secondary burn chamber via exhaust conduits having axial and cross-sectional shapes and wall geometries that promote internal turbulence and heat transfer. One or more gas/oil fired burners are fitted to or between the primary and secondary combustion chambers. Several operating modes are provided via associated blowers, air baffles, liquid and gas fuel conduits, pumps and sundry stove sensors and servos coupled to microprocessor control circuitry.

Abstract: A bio-mass fueled boiler operating at delivered efficiencies in excess of 90%. Pre-heated, pressurized primary combustion air is supplied to a primary burn chamber via horizontal and vertical orifice containing conduits. Exhaust gases are directed past a reflective secondary burner supplying pre-heated, pressurized secondary combustion air into a secondary burn/ash collection chamber. Exhaust gases are directed from the secondary burn chamber via exhaust conduits having axial and cross-sectional shapes and wall geometries that promote internal turbulence and heat transfer. One or more gas/oil fired burners are fitted to or between the primary and secondary combustion chambers. Several operating modes are provided via associated blowers, air baffles, liquid and gas fuel conduits, pumps and sundry stove sensors and servos coupled to microprocessor control circuitry.

Abstract: A slide joint that is fit over a first member and joints a second member to the first member includes a cylinder defining a bore having an axis and having a surface defining a groove and a ring including a flat body defining another bore having another axis and a sidewall extending from the body and fit over the cylinder with the bores partly overlapping each other to allow the first member to extend therethrough, the axes being eccentric with respect to each other. The ring is rotatable about the cylinder between a first position where the axes have a first eccentricity and a second position where the axes have a second eccentricity that is smaller than the first eccentricity whereby the bores tightly engage the first member to secure the slide joint on the first member.

Abstract: A chair includes a support assembly comprised of a first leg set having two space first bars and a second leg set having two space second bars located between and pivoted to the first bars. A backrest has is rotatable with respect to the support assembly to selectively change a tilting angle thereof. A tubular slide is movably fit over a free end of each first bar and is pivoted to the backrest. The slide has a fastening device to selectively secure the slide with respect to the first bar thereby releasably securing the backrest at a desired tilting angle. A wire and a spring are selectively connected between the slide and the first bar to prevent the slide from undesired separation from the first bar and to induce a returning force to move the backrest from a tilted position back to a regular position.

Abstract: An umbrella stand receives, holds and supports a post of an umbrella in an upright manner. The stand includes a vertical stack of blocks, including a bottom block positionable on a fixed surface, a top block located above the bottom block and at least one middle block interposed between the top and bottom blocks. The blocks define bores aligned with each other for receiving a lower end of the post. Mateable pits and bosses are formed between adjacent blocks for positioning the blocks with respect to each other and releasably engaging the blocks with each other. Recesses are defined in a lower surface of each block to accommodate fingers of a person in handling and moving the blocks. A pin is formed in the bore for engaging a releasable spring-biased pawl arranged in the post thereby releasably coupling the post of the umbrella to the stand. Alternatively, threading engagement is formed between the post and the bore to fix the post to the stand to replace the pin-pawl coupling.

Abstract: A chair includes a support assembly comprised of a first leg set having two space first leg bars and a second leg set having two space second leg bars that are located between and pivoted to the first leg bars. A backrest has lower ends pivoted to the second leg bars and is thus rotatable with respect to the support assembly to selectively change a tilting angle of the backrest with respect to the support assembly. A tubular slide is movably fit over a free end of each first leg bar and is pivoted to the backrest. The tubular slide has a fastening device to selectively secure the tubular slide with respect to the first leg bar thereby releasably securing the backrest with respect to the support assembly.

Abstract: Disclosed herein is a portable sunshade comprising a mast structure extending in a generally vertically direction, means for attaching the mast structure at its lower end to a support structure, a boom extending outwardly from the mast structure, having first and second ends, the first end being movably attached to the mast structure, a hub assembly attached to the second end of the boom, a plurality of elongated support ribs extending radially from the hub assembly, each of said support ribs, having one end rotatably attached to the hub assembly, a canopy positioned over the elongated support ribs and fastened thereto, the canopy having an opening in it corresponding to a predetermined position along the boom, and a boom support strut pivotably attached at one end to the upper end of the mast structure, and at the other end pivotably secured to boom at a predetermined position along the length of it, the boom support strut extending through the opening in the canopy at the point where it is connected to the