Abstract: A system and method for vibration in a centrifuge is disclosed. A centrifuge for removing more dense material from a fluid medium includes a fluid separation wall placed within a non-rotating sleeve. The fluid separation wall rotates around the axis of rotation and includes an inner surface and an outer surface with at least one receptacle formed on the inner surface of the fluid separation wall. The receptacle aids in separation of more dense material from the fluid medium by forming a void space between the inner and outer surface. An excitation apparatus associated with the receptacle to create a vibration within the receptacle. A flow path may extend through the wall from the void area to the outer surface to transport more dense material to the containment zone.

Abstract: A system and method for vibration in a centrifuge is disclosed. A centrifuge for removing more dense material from a fluid medium includes a fluid separation wall placed within a non-rotating sleeve. The fluid separation wall rotates around the axis of rotation and includes an inner surface and an outer surface with at least one receptacle formed on the inner surface of the fluid separation wall. The receptacle aids in separation of more dense material from the fluid medium by forming a void space between the inner and outer surface. An excitation apparatus associated with the receptacle to create a vibration within the receptacle. A flow path may extend through the wall from the void area to the outer surface to transport more dense material to the containment zone.

Abstract: A system and method for receptacle wall vibration in a centrifuge is disclosed. A centrifuge for removing more dense material from a fluid medium includes a vibratory device associated with the receptacle wall to create a vibratory force.

Abstract: A centrifuge with specific wall and opening shapes for receptacles is disclosed. A centrifuge may include a fluid separation wall aligned substantially parallel to an axis of rotation and include an inner surface, a void area, and an outer surface. The inner surface may be placed in contact with the fluid medium. The inner surface may include at least one receptacle. The receptacle may aid in separation of the more dense particles from the fluid medium. The centrifuge may further include at least one fluid flow path extending through the separation wall from the inner surface to the outer surface. The fluid flow path may transport the more dense particles to the containment zone.

Abstract: A method for segregating and transporting heavy particles thrown by centrifugal force from a flowing, spinning column of liquid or gas, whereby an outer cylinder whose inner walls present or face the center core with horizontal, circular bands of pyramidal or conical shaped voids, which bands can be vertically stacked to surround a device of any length, and the voids of which present to the heavy particles being thrown from the fluid a receiving surface consisting entirely of outward sloping surfaces, all of which sloped-surface voids accept, accumulate and gravitationally guide said heavy particles towards exit orifices or nozzles, which nozzles penetrate the outer cylinder and together with the sloped voids, permit the continuous, non-mechanically assisted accumulation and ejection of said heavy particles along the entirety of a centrifugal device of any length and thus for any desired duration (or residence time) of fluid flow.

Abstract: A method for combining three different means of constructing the concentric layers of the outer collecting wall for industrial size centrifuges, whereby treating the inward-facing elements of easily cast or stamped materials using processes such as Physical Vapor Deposition, Chemical Vapor Deposition or metal plating, transforms them into an innermost member with superior hardness and durability, and whereby said wear surface member or deposited layer is physically supported by a middle composite layer made up of one or more investment castings designed to optimally transfer centrifugally-induced compression loads from the innermost wear surface toward the outer surface of the composite wall, such castings being of ceramic, metals or other materials, and whereby the outer surface of said composite wall is comprised of a filament-wound hoop strength reinforcement layer, using aramid, graphic, carbon or such fibers mixed and embedded in resin, such that all highly desirable characteristics for a centrifuge oute

Abstract: A connector assembly for electrically interconnecting first and second printed circuit board like members having electrical contacts thereon includes an elongated biasing member for being mounted on the first printed circuit board like member and flexible circuitry mounted on the biasing member. The biasing member possesses arm portions which are spaced apart to define therebetween a longitudinal opening for receiving a second printed circuit board like member. The flexible circuitry mounted on the biasing member includes a plurality of generally parallel-spaced electrical conductors for being electrically connected with the electrical contacts on the first printed circuit board like member when the biasing member is mounted on the first printed circuit board like member.

Abstract: A connector device for being mounted on a first printed circuit board like member to establish electrical connection between electrical contacts on the first printed circuit board like member and electrical contacts on a second printed circuit board like member includes a biasing element and flexible circuitry attached to the biasing element. The flexible circuitry is provided with a plurality of generally parallel-spaced electrical conductors for being electrically mated with electrical contacts on the first printed circuit board like member. To provide movement of individual ones of the electrical conductors relative to adjacent electrical conductors, the biasing member can be provided with slits or slots at places between the electrical conductors. In addition, or alternatively, slits or slots can be provided in the flexible circuitry.

Abstract: A connector assembly for a electrically interconnecting two printed circuit board like members comprises a connector member for being mounted on a first printed circuit board like member. The connector member includes generally parallel-spaced electrical conductors for being electrically connected to electrical circuitry positioned on the first printed circuit board like member when the connector member is mounted on the first printed circuit board like member. The electrical conductors are positioned along at least one side of an opening which extends along the connector member and which is adapted to receive a second printed circuit board like member having electrical circuitry thereon.

Abstract: An electrical connector, bridge connector and opening accessory to protect the contacts on flexible circuitry of such connectors from being damaged by the sharp edges of a printed circuit board like member wherein the opening accessory is provided with spaced apart cam means that spread apart cam bearing portions of the connectors outside flexible circuitry mounted thereon is disclosed.

Abstract: A high density and multiple insertion connector that minimizes the amount of friction created by coupling and uncoupling of the connector wherein a generally hourglass-shaped insertion member isolates sliding contact between the components to surfaces of low frictional resistance material during the majority of the insertion and removal movements while providing wiping and high contact forces between electrical contacts.

Abstract: A high-performance, multi-row contact matrix electrical connector having a spring element in the form of an elongated hollow split tube with a mechanical actuator operatively connected to the tube and including first and second sets of parallel spaced conductors terminating at least at one end thereof in a first and second matrix of contact pads, the matrices and the pads being positioned within the split, movement of the mechanical actuator overcoming the spring element to open and close the connector.

Abstract: There is provided a method and an apparatus for adapting a conventional freeze and rain sensors to be used with a water irrigation system in which a water valve is retracted by a latching solenoid.

Abstract: A rotation lock and wipe connector having a biasing member which is generally C-shaped and flexible circuitry containing a plurality of electrical contacts mounted about the biasing member, insertion and rotation of a circuit board within the biasing member mechanically and electrically interconnecting the circuit board with the electrical contacts of the flexible circuitry and simultaneously generating a wiping action between the contacts and the circuit board inserted therein is disclosed.

Abstract: A high-performance, multi-row contact matrix electrical connector having a spring element in the form of an elongated hollow split tube with a heat-recoverable member of shape-memory alloy positioned within the tube and including first and second sets of parallel spaced conductors terminating at least at one end thereof in a first and second matrix of contact pads, the matrices and the pads being positioned within the split, a change in temperature changing the shape-memory alloy from one metallurgical state to another, causing movement of the heat-recoverable member and the spring means to open and close the connector.

Abstract: A high-performance, multi-row contact matrix electrical connector having a spring element in the form of an elongated hollow split tube with a heat-recoverable member of shape-memory alloy positioned within the tube and including first and second sets of parallel spaced conductors terminating at least at one end thereof in a first and second matrix of contact pads, the matrices and the pads being positioned within the split, a change in temperature changing the shape-memory alloy from one metallurgical state to another, causing movement of the heat-recoverable member and the spring means to open and close the connector.

Abstract: Rings of shape memory metal are deformed to be insertable between coaxial and overlapping surfaces of a conduit and a coupler so that upon heating above their transition temperature, the rings attempt to return to their undeformed shape and seal the opening between the two surfaces; the sealing rings being concave-convex with the convex surface directed toward the adjacent end of the conduit whereby interval pressure in the conduit tends to further expand the metal and increase the seal. Retainer rings in the general form of the section of a conic may be employed to provide additional strength against separation.

Abstract: Shape memory materials, preferably metals, are employed to replace levers to control opening and closing of opposed pairs of contacts in multicontact, zero insertion force connectors; the shape memory material replacing levers for opening the connectors.

Abstract: A tube for use in a flow controller of an intravenous or other slow flow control apparatus has a configuration somewhat like the opening defined by the open eyelids of the human eye whereby to provide relatively sharp corners and narrow width of the opening to reduce materially the force required to close relative to that required to close a round tube and to reduce the movement of the flow control element of the controller, which controller is configured to take advantage of the shape of the tube and employs a shape memory control element to adjust rate of flow of the fluid; the controller also including a brake element to lock the flow rate at a particular preselectable rate.

Abstract: A tube for use in a flow controller of an intravenous or other slow flow control apparatus has a configuration somewhat like the opening defined by the open eyelids of the human eye whereby to provide relatively sharp corners and narrow width of the opening to reduce materially the force required to close relative to that required to close a round tube and to reduce the movement of the flow control element of the controller, which controller is configured to take advantage of the shape of the tube and employs a shape memory control element to adjust rate of flow of the fluid; the controller also including a brake element to lock the flow rate at a particular preselectable rate.