Abstract: Ethylenically unsaturated, particularly acrylic, monomers are polymerised using a catalyst system including a manganese carbonyl initiator, an organic halogen reactive substrate and an allylic halide chain termination agent. Desirably the manganese carbonyl initiator is a dimanganese compound, particularly dimanganese decacarbonyl (Mn2(CO)10). The catalysis mechanism appears to involve initiator homolysis, abstraction of halogen from the reactive substrate forming an organic free radical which acts as a chain initiator for polymerisation and eventual reaction of the propagating chain radical with the chain terminating agent. The speed or extent of reaction may be modified by the inclusion of Lewis acids in the reaction mixture. The resulting polymers are telechelic and may have different end groups. The polymers can be reacted further to functionalise them and/or to form block copolymers.

Abstract: Ethylenically unsaturated, particularly acrylic, monomers are polymerized using a catalyst system including a manganese carbonyl initiator, an organic halogen reactive substrate and an allylic halide chain termination agent. Desirably the manganese carbonyl initiator is a dimanganese compound, particularly dimanganese decacarbonyl (Mn2(CO)10). The catalysis mechanism appears to involve initiator homolysis, abstraction of halogen from the reactive substrate forming an organic free radical which acts as a chain initiator for polymerization and eventual reaction of the propagating chain radical with the chain terminating agent. The speed or extent of reaction may be modified by the inclusion of Lewis acids in the reaction mixture. The resulting polymers are telechelic and may have different end groups. The polymers can be reacted further to functionalize them and/or to form block copolymers.

Abstract: 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 removable armrest, seat belts, 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.

Abstract: 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.

Abstract: 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.

Abstract: The present invention relates to collapsible self-supported cribs which 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. The cribs contain one or more of the following elements: anti-torque posts, crossed support arms, telescoping crossed support arms, flexible liners, Structure Locking Elements, Anti-Collapse Locking Elements and Anti-Tipping Assemblies.

Abstract: The present invention is a portable chair with caster wheels that is lightweight in construction and easily collapsed, carried, stored and transported by public or private means. The chair 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. It can also be configured as a collapsible office chair to meet the needs of employers with temporary working staff and for use by college students in crowded dorm rooms. Additional features such as an armrest, a foot rest, 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.

Abstract: The present invention is a method for preventing the onset of mastitis in female mammals. The specification discloses the incorporation of one or more lysogenic bacteriophages with specificity to mastitis causing bacteria into a formulation which is applied to a female mammal's udders.

Abstract: The present invention is a portable chair with caster wheels that is lightweight in construction and easily collapsed, carried, stored and transported by public or private means. The chair 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. It can also be configured as a collapsible office chair to meet the needs of employers with temporary working staff and for use by college students in crowded dorm rooms. Additional features such as an arm rest, a foot rest, 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.

Abstract: The present invention is a portable chair with caster wheels that is lightweight in construction and easily collapsed, carried, stored and transported by public or private means. The chair 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. It can also be configured as a collapsible office chair to meet the needs of employers with temporary working staff and for use by college students in crowded dorm rooms. Additional features such as an armrest, a foot rest, 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.

Abstract: The present invention relates to collapsible self-supported structures. All of these structures 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.

Abstract: In an adjustable valve means in a sprinkler device, a locking system that includes a breakaway wedging member connected to an adjustable two part sprinkler device and a wedging cavity positioned between the two parts of the sprinkler device to lock the two relatively moveable parts together.

Abstract: A one-piece flexible guard for excluding dirt and other foreign matter from the internal parts of a pop-up sprinkler. More particularly, a flexible circularly shaped piece of material which can be attached to the edge of the fixed housing assembly of a pop-up sprinkler. Said material having a circular hole in its center in which the pop-up sprinkler protrudes, said movable part being securely attached to said material along the edge of said circular hole. The guard being attached to the sprinkler in such a way so as to exclude foreign matter from the internal parts of the sprinkler while permitting the movable nozzle portion free vertical or horizontal movement. In an up position the outer perimeter of the guard forms a dam. The sprinkler also may provide fluid to wash the dirt from outside of the dam portion of the guard when the nozzle is in the extended or up position.