摘要:
A self-propelled swimming pool cleaner which randomly covers the bottom of the pool. Water pumped from the bottom of the unit filters dirt carried thereby, then uses the pumped water to propel the device either forward or backward. A pivoted front axle causes the path of the unit to vary when changing from forward to backward so that the unit randomly covers the entire pool bottom. Spring loaded doors may be provided to allow water to exit when the unit is lifted out of the pool. A sealed motor unit has a metal portion to transfer heat from the motor.
摘要:
An apparatus for developing in a development zone a latent image recorded on a surface, including a housing defining a chamber storing at least a supply of toner therein; a donor member disposed of at least partially in the chamber of the housing and spaced from the surface, the donor member being adapted to rotate about a longitudinal axis to transport toner to the development zone in a region opposed from the surface; and a wire assembly module mounted the development zone and extending in a direction transverse to the longitudinal axis, the wire assembly module including a wire and a drive system for translating portions of the wire in the development zone, and power supply for electrically biasing the wire to detach toner from the donor member so as to form a toner powder cloud in the development zone with detached toner from the toner cloud developing the latent image.
摘要:
An apparatus 10 for training a physician in performing surgery, such as performing a sphincterotomy or papillotomy, includes a model of the human or animal tissue in which a sphincter is located, the model being cuttable by an electrosurgical tool 28 such as a sphincterotome or papillotome. More particularly, the apparatus 10 first includes a porous, nonconductive form 12 having mechanical properties comparable to those of human or animal tissue in which a sphincter is located. The apparatus 10 also includes an electroconductive gel, such as conventional electrocardiogram gel, disposed in the porous form in an amount adequate to permit cutting of the form 12 by an electrosurgical tool 28, such as a sphincterotome or papillotome. The form 12 preferably has a plurality of pores 14 formed in it. More preferably, the form 12 can be an open-cell foam of polyurethane or another synthetic elastomer, although the form 12 can also be composed of a fabric. In this latter case the pores 14 can be formed in the threads of the fabric, so that the gel 16 is absorbed into the threads themselves, or can be formed as the open spaces between the fibers of a woven or nonwoven fabric, mesh, web or felt. The electroconductive gel 16 is preferably a conventional electrocardiogram gel, based on a salt disposed in an aqueous jelly, although soap solution-based gels may also be useful. The apparatus 10 also preferably includes a stand 34 for establishing the position of the form 12 and restricting movement of the electrosurgical tool 28; this permits the apparatus 10 to mimic the manipulations which would be needed when the electrosurgical tool 28 is actually positioned within the body of the patient.
摘要:
A retractable and extendable electrical cord, for positioning in a wall and having a hollow housing, one or more reels rotatably mounted within the hollow housing, an electrical cord wound upon each reel, a retraction spring connected to each reel for rewinding the reel to retract the cord, first and second electrical contact members mounted on the reel in spaced apart relation, and ends of the electrical cord being connected to the contacts of said reel, first and second contact rings mounted within the housing and engageable by respective first and second electrical contacts, as the reel rotates, and electrical supply connections connected to the first and second contact rings. Also disclosed is a portable electrical cord extension and retraction device which can be plugged in to a conventional wall socket so that the cord can be extended to reach an appliance, and can be retracted when not required.
摘要:
The present invention describes methods of performing rapid nucleic acid detection using a flow through process. The methods comprise single-step signal amplification and/or a one-step hybridization protocol. Using the flow through hybridization process, the present invention provides a more efficient, faster and less expensive genotyping method. This invention further provides a Single Nucleotide Polymorphism (SNP)-based DNA fingerprinting method for rapid and accurate genotyping, identification as well as DNA analyses of genetic materials from human beings and other different organisms. In addition this invention also discloses devices for rapid and sensitive analysis of target analysts.
摘要:
An underwater light for use with soft-sided aboveground pools includes a watertight light fixture utilizing a low voltage (12V) current for use in underwater illumination of a swimming pool. A mounting assembly is provided that is attached to the light fixture for allowing attachment of the assembly to a support frame of a soft-sided aboveground pool. A transformer is provided for containing controls for an automatic timer and for providing variable intensity lighting to the system.
摘要:
A method for removing a residue, such as lateral charge migration (LCM) film, from an imaging member includes contacting at least a portion of the imaging member with a wash liquid capable of removing the residue. The wash liquid containing the residue is then removed, for example, by applying an absorbent material such as a toner, to the contacted portion of the imaging member.
摘要:
This invention provides methods for determining whether a target nucleic acid sequence is present in a sample and methods for determining the amount of a target nucleic acid sequence present in a sample using flow-through hybridisation technology. This invention also provides different embodiments of these methods. Finally, this invention also provides devices where these methods are carried out.
摘要:
The present invention describes methods of performing rapid nucleic acid detection using a flow through process. The methods comprise single-step signal amplification and/or a one-step hybridization protocol. Using the flow through hybridization process, the present invention provides a more efficient, faster and less expensive genotyping method. This invention further provides a Single Nucleotide Polymorphism (SNP)-based DNA fingerprinting method for rapid and accurate genotyping, identification as well as DNA analyses of genetic materials from human beings and other different organisms. In addition this invention also discloses devices for rapid and sensitive analysis of target analysts.
摘要:
The present invention discloses methods and devices for rapid genotyping. In one embodiment, the present invention is applied to human papillomavirus (HPV) genotyping, comprising the use of viral genotype-specific-oligonucleotide probes, reversed-dot-blotting genotype array format and flow through hybridization process, thereby providing a more efficient, faster and less expensive method for HPV genotyping. The genotyping method further comprises the use of generic probes to expand the detection of HPV genotypes.