Abstract:
Computer cooling equipment for computer equipment comprises: a primary heat transfer circuit; a secondary heat transfer circuit containing a secondary heat transfer fluid, a secondary condenser cooled by the primary heat transfer circuit and a secondary evaporator for cooling the computer equipment; and is characterised in that the secondary heat transfer fluid is a volatile fluid. The secondary heat transfer fluid may be carbon dioxide. The cooling system is of particular use in power hungry applications such as cooling of computer servers, particularly of blade servers as it can produce a heat load dissipation of up to 100 kW, compared to 10 kW or less using conventional systems. Heat exchange cabinets, air conditioning systems and building elements using a secondary heat transfer fluid which is a volatile fluid are also disclosed.
Abstract:
The present invention relates to s coaxial connector having a technical feature of a shield against unwanted radio frequency transfer in coaxial cable installations. Effective shields include perforated structures such as screens, fabrics, perforated plates, and perforated disks. In effect, these shields are waveguides tending to attenuate and/or reject passage of certain frequencies. An embodiment of the invention provides a smaller entry hole of 2 to 3.5 mm with a nominal thickness of between 0.5 to 1.5 mm. This combination of hole size and thickness acts as a waveguide to restrict ingress of low frequencies, typically under 100Mhz by 20-40dB of that of an open-ended F port.
Abstract:
A male coaxial cable connector includes spring with tines and a fastener wherein the spring is housed by the fastener and distal ends of the spring tines are arranged to provide a spring mouth.
Abstract:
A gear synchronizing system having a component carrier, wherein the component carrier accepts a splined shaft therethrough and interact with the splined shaft to allow transfer of rotation between the splined shaft and the component carrier while also allowing the component carrier to slide axially along the splined shaft relative to an associated friction plate. The component carrier includes a plurality of friction members pivotably coupled within walled recesses of the component carrier, such that when the component carrier is urged toward the associated friction plate, at least a portion of the contact surface of the friction members initially contacts a surface of the friction plate and, as the component carrier continues to be urged toward the associated friction plate, each friction member is rotated, such that at least a portion of the contact surface of each friction member continues to contact a surface of the friction plate.
Abstract:
A synchronizing clutch having a component carrier, wherein the component carrier accepts a splined shaft therethrough and interact with the splined shaft to allow transfer of rotation between the splined shaft and the component carrier while also allowing the component carrier to slide axially along the splined shaft relative to an associated friction plate. The component carrier includes a plurality of friction members pivotably coupled within walled recesses of the component carrier, such that when the component carrier is urged toward the associated friction plate, at least a portion of the contact surface of the friction members initially contacts a surface of the friction plate and, as the component carrier continues to be urged toward the associated friction plate, each friction member is rotated, such that at least a portion of the contact surface of each friction member continues to contact a surface of the friction plate.
Abstract:
A structure (10, 50) subjected to stresses that can lead to structural failure. The structure (10, 50) includes first and second conductive layers (16, 18, 56 ,58) and an intermediate layer (20, 60) therebetween formed of a dielectric, semiconductive, or resistive material, such that the first, second, and intermediate layers (16, 18, 20, 56, 58, 60) form in combination an electrical element, namely, a capacitive or resistive element. The electrical element is located within the structure (10, 50) so as to be physically responsive to transitory and permanent distortions of the structure (10, 50) resulting from extrinsic and intrinsic sources. The structure (10, 50) further includes applying an electrical potential to at least one of the first and second conductive layers (16, 18, 56, 58) so as to generate an electrical signal from the electrical element, sensing changes in the electrical signal generated by the electrical element in response to the electrical element physically responding to the transitory and permanent distortions, and transmitting the changes in the electrical signal to a location remote from the structure (10, 50).
Abstract:
In accordance with one example embodiment of the present invention an apparatus is disclosed. The apparatus includes a cover, a ground plane (34), a first inductor (36), and a second inductor (38). The cover includes a first end and an opposite second end. The cover is configured to operate as a first loop radiator portion. The ground plane (34) is proximate the cover. The ground plane (34) is configured to operate as a second loop radiator portion. The first inductor (36) is proximate the first end of the cover. The second inductor (38) is between the second end of the cover and the ground plane (34). The cover, the ground plane (34), the first inductor (36), and the second inductor (38) are configured to provide a loop radiator.
Abstract:
A method for monitoring a component (10,20,30,40) formed of a polymer material, and the polymer component (10,20,30,40). The component (10,20,30,40) includes an electrically-conductive polymer sensing element (12,14,22,30,40) integrally incorporated into the component (10,20,30,40). An electric potential is applied to the polymer sensing element (12,14,22,30,40), and an electric signal generated by the polymer sensing element (12,14,22,30,40) is sensed in response to the polymer sensing element (12,14,22,30,40) physically responding to a transitory or permanent distortion of the component (10,20,30,40). A signal can then be generated if the electric signal exceeds a predetermined threshold value for the component (10,20,30,40).
Abstract:
A structure (10, 50) subjected to stresses that can lead to structural failure. The structure (10, 50) includes first and second conductive layers (16, 18, 56 ,58) and an intermediate layer (20, 60) therebetween formed of a dielectric, semiconductive, or resistive material, such that the first, second, and intermediate layers (16, 18, 20, 56, 58, 60) form in combination an electrical element, namely, a capacitive or resistive element. The electrical element is located within the structure (10, 50) so as to be physically responsive to transitory and permanent distortions of the structure (10, 50) resulting from extrinsic and intrinsic sources. The structure (10, 50) further includes applying an electrical potential to at least one of the first and second conductive layers (16, 18, 56, 58) so as to generate an electrical signal from the electrical element, sensing changes in the electrical signal generated by the electrical element in response to the electrical element physically responding to the transitory and permanent distortions, and transmitting the changes in the electrical signal to a location remote from the structure (10, 50).