Patent application number | Description | Published |
20100025938 | Bearing Seal - A bearing seal is provided with an annular outer casing having an axially extending portion and a radially inwardly extending portion. A sleeve member is disposed within the annular casing and includes an axially extending portion adapted to be attached to a rotating shaft and a radially outwardly extending portion. An annular seal including a seal body is mounted to the annular casing. A first seal lip extends axially from the seal body and engages the radially outwardly extending portion of the sleeve member. A dual contact lip extends from the seal body and includes a first seal portion and a second seal portion each contacting the sleeve member at axially spaced locations. | 02-04-2010 |
20100219588 | Seal with Spiral Grooves and Contamination Entrapment Dams - A dynamic seal utilizes a groove on the active side of the seal to capture a leaked lubricant and pump the lubricant back into the lubricated side of the seal. The groove stops short of the leading edge of the seal that faces the lubricant side forming a static dam between the termination point of the groove and the seal edge. When the fluid pressure within the groove exceeds the opening pressure for the seal lip, the lubricant within the groove is pumped back into the lubricant side of the seal. The groove can have an induction zone wherein the fluid pressure rise is gradual and a booster zone wherein the fluid pressure rise is relatively faster than in the induction zone. The booster zone is disposed adjacent the static dam. Bars are provided across the spiral grooves to prevent contaminants from reaching and becoming trapped in the booster zone. | 09-02-2010 |
20100244390 | Lip Seal With Inversion Prevention Feature - A dynamic shaft seal assembly is provided including a dynamic seal for engaging a rotary shaft. The dynamic seal includes a mounting portion that is mounted within a casing and has an axially extending barrel portion extending from a radially inner end of the mounting portion. The axially extending barrel portion terminates in a radially extending leg portion which extends inwardly from an end of the axially extending portion. A generally conically shaped seal portion extends from an end of the radially extending portion and the seal portion includes a radially inner face engaging the shaft and a radially outer face having a stiffening bead integrally formed thereon. The mounting portion defines a bumper spaced from the axially extending barrel portion by a gap distance that is designed to prevent the seal lip from inverting under sustained high pressure or pressure spikes. | 09-30-2010 |
20100264604 | Dynamic Seal - A dynamic shaft seal assembly is provided including a dynamic seal for engaging a rotary shaft. The dynamic seal includes a base portion that is mounted within a casing and has an axially extending barrel portion extending from a radially inner end of the base portion. The axially extending barrel portion terminates in a radially extending leg portion which extends inwardly from an end of the axially extending portion. A generally conically shaped seal portion extends from an end of the radially extending portion and the seal portion includes a radially inner face engaging the shaft and a radially outer face having a stiffening bead integrally formed thereon. The stiffening bead reduces the seal's propensity for “bell mouthing” while the axially extending barrel portion provides improved shaft followability for the dynamic seal. | 10-21-2010 |
20110024989 | Dynamic Seal - A dynamic shaft seal assembly is provided including a dynamic seal for engaging a rotary shaft. The dynamic seal includes a base portion that is mounted within a casing and has an axially extending barrel portion extending from a radially inner end of the base portion. The axially extending barrel portion terminates in a radially extending leg portion which extends inwardly from an end of the axially extending portion. A generally conically shaped seal portion extends from an end of the radially extending portion and the seal portion includes a radially inner face engaging the shaft and a radially outer face having a stiffening bead integrally formed thereon. The stiffening bead reduces the seal's propensity for “bell mouthing” while the axially extending barrel portion provides improved shaft followability for the dynamic seal. | 02-03-2011 |
20110024990 | Dynamic Seal - A dynamic shaft seal assembly is provided including a dynamic seal for engaging a rotary shaft. The dynamic seal includes a base portion that is mounted within a casing and has an axially extending barrel portion extending from a radially inner end of the base portion. The axially extending barrel portion terminates in a radially extending leg portion which extends inwardly from an end of the axially extending portion. A generally conically shaped seal portion extends from an end of the radially extending portion and the seal portion includes a radially inner face engaging the shaft and a radially outer face having a stiffening bead integrally formed thereon. The stiffening bead reduces the seal's propensity for “bell mouthing” while the axially extending barrel portion provides improved shaft followability for the dynamic seal. | 02-03-2011 |
20120068419 | Zero Torque Membrane Seal - A low friction seal for sealing between a shaft and a bore and includes an inner case adapted to be mounted on the shaft. An outer case is adapted to be mounted within the bore. A seal element is mounted to the inner case and includes a base portion attached to the inner case. A membrane extends from the base portion and an axially extending leg extends from the membrane. A seal lip extends from the axially extending leg and sealingly engages a radially extending portion of the outer case. As the shaft rotates, the centrifugal forces tend to cause the membrane to flex and the torque loads applied by the dynamic seal are reduced to the point that the seal lip can lift off and apply zero torque load. | 03-22-2012 |
20130175763 | Lubricated Shaft Seal - A seal for sealingly engaging a shaft or other rotatable element includes a sealing portion having a lubricant side and a non-lubricant side and extending generally inwardly toward the shaft when the seal is installed thereon. The sealing portion has an active lip portion including a shaft engagement surface engageable with the shaft and a lubricant vent extending through at least a portion of the active lip portion. The lubricant vent provides fluid communication between opposite sides of the active lip portion, thus maintaining adequate lubrication between the shaft engagement surface and the shaft, avoiding lubricant coking, or other degradation, and extending seal life. | 07-11-2013 |
20140021687 | Lip Seal With Inversion Prevention Feature - A dynamic shaft seal assembly is provided including a dynamic seal for engaging a rotary shaft. The dynamic seal includes a mounting portion that is mounted within a casing and has an axially extending barrel portion extending from a radially inner end of the mounting portion. The axially extending barrel portion terminates in a radially extending leg portion which extends inwardly from an end of the axially extending portion. A generally conically shaped seal portion extends from an end of the radially extending portion and the seal portion includes a radially inner face engaging the shaft and a radially outer face having a stiffening bead integrally formed thereon. The mounting portion defines a bumper spaced from the axially extending barrel portion by a gap distance that is designed to prevent the seal lip from inverting under sustained high pressure or pressure spikes. | 01-23-2014 |
20140110904 | Dynamic Lay Down Lip Seal With Bidirectional Pumping Feature - A dynamic lip seal is provided for sealing between a housing and a shaft and with a fluid medium to be sealed on an oil side and air on an air side of the seal. The seal includes a seal lip extending from a seal body and including a shaft contact portion adapted for engagement with the shaft and including a static band and a first set of spiral grooves disposed on an oil side of the static band, and a second set of spiral grooves on an air side of the static band. The first and second sets of spiral grooves are both configured to pump oil toward the static band when the shaft is rotated in a first direction, and the first and second sets of spiral grooves are both configured to pump oil away from the static band when the shaft is rotated in a second direction. | 04-24-2014 |
20150219218 | Energy Saving Seal With Vacuum Induced Counter-Balance And Rocking Feature - A seal includes an annular mounting portion having a bellows portion extending axially and radially inward from the mounting portion. An axial leg extends axially from the bellows portion. A lay down sealing lip extends radially inward and axially from an end of the axial leg. A dust lip extends from the end of the axial leg in a direction opposite the lay down sealing lip. When the oil side is under negative pressure and when the lay down sealing lip begins to lift radially off the shaft there is a counterbalance force applied to the axial leg through the bellows geometry which maintains the lay down sealing lip in contact with the shaft. In addition, the seal is designed to be flexible enough that the oil side vacuum “rocks” the seal bringing the dust lip into contact with the shaft and blocking airflow. | 08-06-2015 |
20150219219 | Energy Saving Self-Contact Seal With Pushing Bead - An energy saving seal seals between a bore and a shaft for separating an oil side from an air side of the seal. The seal includes an annular mounting portion having a bellows portion extending axially and radially inward from the mounting portion. An axial leg extends axially from the bellows portion toward the air side. A lay down sealing lip extends radially inward and axially toward the oil side from an end of the axial leg. The sealing lip includes a bead on an outer surface. A dust lip extends from the end of the axial leg in a direction opposite the lay down sealing lip. When the oil side is under a negative pressure, the axial leg flexes inward in response to the negative pressure and engages the bead to provide a self-contact feature that holds the lay down sealing lip in engagement with the shaft. | 08-06-2015 |
20150219220 | Energy Saving Seal With Rocking Dust Lip - A seal includes an annular mounting portion having an axial leg extending axially from the annular mounting portion toward the air side. A radial leg portion extends radially inward from an end of the axial leg. A lay down sealing lip extends radially inward and axially toward the oil side from an end of the radial leg portion. A dust lip extends from the end of the radial leg portion in a direction opposite the lay down sealing lip. When the oil side is under negative pressure and when the lay down sealing lip begins to lift radially off the shaft, there is a counterbalance force applied to the axial leg that is designed to be flexible enough that the oil side vacuum “rocks” the seal bringing the dust lip into contact with the shaft and blocking airflow. | 08-06-2015 |
Patent application number | Description | Published |
20100216010 | System and method for fusibly linking batteries - A system and method links batteries in parallel to conductors using wire bonds that act as fuses in the event of an overcurrent condition in a battery. To protect the wire bonds in the case of a larger overcurrent condition, a fuse may be added in series to the parallel batteries. | 08-26-2010 |
20110091760 | System and Method for Inhibiting the Propagation of an Exothermic Event - A system and method disperses a sudden increase in heat generated by one battery cell to a large area including multiple battery cells, thereby preventing the sudden increase from being absorbed primarily by a small number of other battery cells, such as a single battery cell, that could otherwise cause the other battery cells to fail or release their own heat. | 04-21-2011 |
20140178722 | BATTERY MOUNTING AND COOLING SYSTEM - A battery system is provided in which the batteries are mounted between a pair of substrates, the system further including at least one cooling tube mounted next to the batteries, the cooling tube used to withdraw heat from the batteries via a circulating liquid coolant. | 06-26-2014 |
20150244047 | Battery mounting and cooling system - A battery system is provided in which the batteries are mounted between a pair of substrates, the system further including at least one cooling tube mounted next to the batteries, the cooling tube used to withdraw heat from the batteries via a circulating liquid coolant. | 08-27-2015 |
Patent application number | Description | Published |
20110111296 | OPEN STRUCTURES IN SUBSTRATES FOR ELECTRODES - Provided are conductive substrates having open structures and fractional void volumes of at least about 25% or, more specifically, or at least about 50% for use in lithium ion batteries. Nanostructured active materials are deposited over such substrates to form battery electrodes. The fractional void volume may help to accommodate swelling of some active materials during cycling. In certain embodiments, overall outer dimensions of the electrode remain substantially the same during cycling, while internal open spaces of the conductive substrate provide space for any volumetric changes in the nanostructured active materials. In specific embodiments, a nanoscale layer of silicon is deposited over a metallic mesh to form a negative electrode. In another embodiment, a conductive substrate is a perforated sheet with multiple openings, such that a nanostructured active material is deposited into the openings but not on the external surfaces of the sheet. | 05-12-2011 |
20110111300 | INTERMEDIATE LAYERS FOR ELECTRODE FABRICATION - Provided are novel electrodes for use in lithium ion batteries. An electrode includes one or more intermediate layers positioned between a substrate and an electrochemically active material. Intermediate layers may be made from chromium, titanium, tantalum, tungsten, nickel, molybdenum, lithium, as well as other materials and their combinations. An intermediate layer may protect the substrate, help to redistribute catalyst during deposition of the electrochemically active material, improve adhesion between the active material and substrate, and other purposes. In certain embodiments, an active material includes one or more high capacity active materials, such as silicon, tin, and germanium. These materials tend to swell during cycling and may loose mechanical and/or electrical connection to the substrate. A flexible intermediate layer may compensate for swelling and provide a robust adhesion interface. Provided also are novel methods of fabricating electrodes containing one or more intermediate layers. | 05-12-2011 |
20110229761 | INTERCONNECTING ELECTROCHEMICALLY ACTIVE MATERIAL NANOSTRUCTURES - Provided are various examples of lithium electrode subassemblies, lithium ion cells using such subassemblies, and methods of fabricating such subassemblies. Methods generally include receiving nanostructures containing electrochemically active materials and interconnecting at least a portion of these nanostructures. Interconnecting may involve depositing one or more interconnecting materials, such as amorphous silicon and/or metal containing materials. Interconnecting may additionally or alternatively involve treating a layer containing the nanostructures using various techniques, such as compressing the layer, heating the layer, and/or passing an electrical current through the layer. These methods may be used to interconnect nanostructures containing one or more high capacity materials, such as silicon, germanium, and tin, and having various shapes or forms, such as nanowires, nanoparticles, and nano-flakes. | 09-22-2011 |