摘要:
The present invention is a collapsible self-propelled chair on wheels that is lightweight in construction and easily collapsed, carried, stored and transported by public or private means. The chair performs the function of a wheelchair while avoiding the appearance of a traditional wheelchair thus avoiding the invalid stigma often associated with wheelchairs. It can be configured as an assistive mobility device to fill the unmet needs of aging healthy adults who wish to retain their independence and social interactions or a medical device to assist those with medical needs. Additional features such as an armrest, a footrest, or a reclining back are easily added during manufacture and because of the chairs uncomplicated design and duplicity of parts, it is very economical to manufacture.
摘要:
The present invention relates to collapsible cribs. The cribs have one or more of the following characteristics: adjustable length and/or, width and/or height, lightweight, easily collapsed, very compact when collapsed and easily carried, stored and transported. Embodiments disclosed relate to pens, cribs, and play yards with and without wheels.
摘要:
The present invention relates to collapsible cribs. The cribs have one or more of the following characteristics: adjustable length and/or, width and/or height, lightweight, easily collapsed, very compact when collapsed and easily carried, stored and transported. Embodiments disclosed relate to pens, cribs, and play yards with and without wheels.
摘要:
A motor incorporating a bearing guided labyrinth system of the present invention includes a shaft, a hub, a bearing assembly, and a bearing guided labyrinth. The bearing assembly includes an inner bearing ring and an outer bearing ring separated by a plurality of ball bearings. The inner bearing ring has an inner annular ring surface and the outer bearing ring has an outer annular ring surface. The bearing guided labyrinth has an inner prong and an outer prong. The inner prong is at least partially positionable between the inner ring surface and the shaft. The outer prong is at least partially positionable between the outer ring surface and the hub. The outer prong grips the bearing assembly and specifically the outer annular ring surface of the outer bearing ring.
摘要:
The present invention pertains to acridone and acridine compounds of formula (I), wherein either: (a) K is ═O, L is —H, alpha is a single bond, beta is a double bond, gamma is a single bond (acridones): or, (b) K is a 9-substituent. L is absent, alpha is a double bond, beta is a single bond, gamma is a double bond and wherein: J1 is a 2- or 3-substituent; J2 is a 6- or 7-substituent; J1 and J2 are each independently a group of the formula —NHCO(CH2)nNR1R2, wherein: n is an integer from 1 to 5; and, R1 and R2 are independently hydrogen, C1-7alkyl, C3-20heterocyclyl, or C5-20aryl, or R1 and R2, taken together with the nitrogen atom to which they are attached, form a heterocyclic ring having from 3 to 8 ring atoms; and wherein, when K is a 9-substituent, K is a group of the formula —N(RN)Q, wherein: RN is an amino substituent and is hydrogen. C1-7alkyl, C3-20heterocyclyl, or C5-20aryl; and, Q is C1-7alkyl, C3-20heterocyclyl, or C5-20aryl, and is optionally substituted; and pharmaceutically acceptable salts, esters, amides, solvates, hydrates and protected forms thereof. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo to inhibit telomerase, to regulate cell proliferation, and in the treatment of proliferative conditions, such as cancer.
摘要:
This invention pertains to certain acridine and acridine compounds of the formula (1) which inhibit telomerase, regulate cell proliteration, etc., and/or treat cancer proliferative conditions, etc.: wherein either: (a) K is ═O, L is —H, alpha single bond beta is a double bond, gamma is a single bond (acridines); or, (b) K is a 9-substituent, L is absent, alpha is a double bond, beta is a single bond, gamma is a double bond (acridines); and wherein: J1 is a 2- or 3-substituent; J2 is a 6- or 7-substituent; J1 and J2 are each a group of the formula —N(RN)—W, wherein: RN is a nitrogen substituent and is hydrogen, C1-7alkyl, C3-20 heterocyclyl, or C5-20aryl, and is optionally substituted; and, W is C1-7alkyl, C3-20heterocyclyl, or C5-20aryl, and is optionally substitute; and wherein when K is a 9-substituent, K is a group of the formula —N(RN)-Q, wherein: RN is an amino substituent and is hydrogen, C1-7alkyl, C3-20heterocyclyl, or C5-20aryl; and, Q is C1-7alkyl, C3-20heterocyclyl, or C5-20aryl, and is optionally substituted; and pharmaceutically acceptable salts, esters, amides, solvates, hydrates, and protected forms thereof. The present invention also pertains to pharmaceutical compositions comprising such compounds, and the use of such compounds and compositions, both in vitro and in vivo, to inhibit telomerase, to regulate cell proliferation, etc., and/or in the treatment of cancer, proliferative conditions, etc.
摘要:
A press fit machine for assembling an electric motor which includes a hub having an upper bearing and a stator assembly having a lower bearing, includes an upper and lower press fit fixtures for holding the hub and stator respectively in a preloaded condition prior to motor assembly and for a predetermined period of time afterward. The machine press fits the two halves of the motor together while maintaining appropriate preloads on the upper and lower bearings to prevent excess looseness in the bearings or excessive stiffness. The preload ensures that the bearing will function correctly after assembly because it is maintained during a period of time that the glue joining the hub and stator assembly together sets.
摘要:
A pipe structure suitable for being laid in the sea comprises an inner pipe (2) for conveying fluid to be transported along the pipe structure and an outer pipe (3) around the inner pipe and supporting the inner pipe with space between the inner and outer pipes, the outer pipe having openings to allow water first to flow into the space between the inner pipe and the outer pipe and then to flow out of the space.
摘要:
The present invention relates to collapsible cribs. The cribs have one or more of the following characteristics: adjustable length and/or, width and/or height, lightweight, easily collapsed, very compact when collapsed and easily carried, stored and transported. Embodiments disclosed relate to pens, cribs, and play yards with and without wheels.
摘要:
A driving transmission has two half shafts connected to a pair of land wheels driven by a differential gear mechanism connected to the half shafts, and a differential lock coaxial with one of the half shafts and drivingly connectable with the differential carrier. The differential lock is separated from the differential carrier by a hollow shaft encircling said one half shaft, and the hollow shaft is adapted to be driven by the differential carrier and drivingly connectable with the differential lock. Drive means are also provided in driving relation between the hollow shaft and a second pair of land wheels.