Abstract:
A feedthrough filter capacitor assembly for use in active implantable medical devices and a related process for manufacturing a monolithic ceramic capacitor utilizing dielectric materials having a dielectric constant greater than 7000, and preferably in the range of 8500 to 22,000. In the manufacture of the monolithic ceramic capacitor, one or more Curie point shifters and/or other dopants are added to the dielectric material to optimize the dielectric constant at the human body temperature of 37° C. For manufacturing purposes, dopants may be added to the dielectric material to broaden the Curie point peak or point of maximum dielectric constant thereof. The effect is that when such capacitors and terminal assemblies are utilized in a high-voltage defibrillator circuit of an implantable medical device, the dielectric material is optimized so that during the delivery of high-voltage electrical energy, capacitance value of the capacitor drops substantially.
Abstract:
A chip capacitor is conductively coupled to spaced-apart (i.e., non-conductively coupled) circuit traces of an integrated circuit to provide a four terminal network. The chip capacitor includes a casing of dielectric material having first and second sets of electrode plates disposed therein, a first conductive lead frame which is conductively coupled to the first set of electrode plates, and a second conductive lead frame which is conductively coupled to the second set of electrode plates. The first and second lead frames are, in turn, conductively coupled to the circuit traces so as to route the output (or input) current of an electronic device through the capacitor.
Abstract:
An integrated electromagnetic interference (EMI) filter capacitor and DC blocking capacitor is provided in a single monolithic casing of ceramic dielectric material. First and second sets of electrode plates are disposed within the monolithic casing to form the DC blocking capacitor, and ground electrode plates are disposed between selected portions of the first and second sets of electrode plates to form the EMI filter. In several of the embodiments, the first and second sets of electrode plates form a plurality of distinct DC blocking capacitors. The ground electrode plates cooperatively form, with the first and second sets of electrode plates, EMI filters for each of the distinct DC blocking capacitors. Discontinuous lead wires may be provided which extend at least partially into the casing, wherein a first segment of the lead wire is conductively coupled to the first set of electrode plates, and a second set of the lead wire is conductively coupled to the second set of electrode plates. Grounded shields also may be co-planarly disposed between adjacent components of the first and second sets of electrode plates to reduce cross-talk therebetween.
Abstract:
An EMI filter feedthrough terminal assembly includes at least one conductive terminal pin, a feedthrough filter capacitor which has a passageway through which the terminal pin extends, and a conductive substrate through which the terminal pin passes in non-conductive relation. The conductive substrate includes a capture flange having a height that is less than an axial thickness of the capacitor and which is configured to at least partially surround an outer periphery of the capacitor. The height of the capture flange is preferably one-quarter to three-quarters of the axial thickness of the capacitor. A first set of capacitor electrodeplates is conductively coupled to the terminal pin, and a second set of electrode plates is conductively coupled to the capture flange by means of a thermal-setting conductive material disposed between the outer periphery of the capacitor and the capture flange. A related process is provided for manufacturing an EMI filter feedthrough terminal assembly that advantageously utilizes the capture flange.
Abstract:
An integrated hermetically sealed feedthrough capacitor filter assembly is provided for the shielding and decoupling of a conductive terminal pin or lead of the type used, for example, in an implantable medical device such as a cardiac pacemaker or cardioverter defibrillator against passage of external interference signals, such as caused by digital cellular phones. The simplified feedthrough assembly described herein eliminates the traditional terminal pin subassembly. In this novel approach, the ceramic feedthrough capacitor itself forms a hermetic seal with a conductive pacemaker housing to which it is mounted by welding or brazing. The feedthrough capacitor is configured such that its internal electrodes are not exposed to body fluids, with capacitor electrode plate sets coupled respectively to a conductive ferrule, pin or housing (which may be grounded) and to the non-grounded, or active, terminal pin(s) by conductive adhesive, soldering, brazing, welding or the like. In one preferred form, multiple feedthrough filter capacitors are provided in a substantially coplanar array within a common base structure, with each capacitor in association with a respective terminal pin.
Abstract:
FIG. 1 is a perspective view of a wine bottle expansion chamber embodying our new design; FIG. 2 is another perspective view of the structure of FIG. 1 from a different perspective view in relation to FIG. 1; FIG. 3 is another perspective view of the structure of FIG. 1 from a different perspective view in relation to FIG. 1; FIG. 4 is another perspective view of the structure of FIG. 1 from a different perspective view in relation to FIG. 1; FIG. 5 is a front elevation view of the structure of FIG. 1; FIG. 6 is a rear elevation view of the structure of FIG. 1; FIG. 7 is a left side elevation view of the structure of FIG. 1; FIG. 8 is a right side elevation view of the structure of FIG. 1; FIG. 9 is a top plan view of the structure of FIG. 1; and, FIG. 10 is a bottom plan view of the structure of FIG. 1. In the drawings, the broken lines show portions of a wine bottle expansion chamber that form no part of the claim.
Abstract:
A hollow expansion chamber of the present invention is configured to temporarily contain an expansion of bubbles during an aeration process for aerating a liquid, where a chamber body of the expansion chamber has a rounded shape. When moving circumferentially downward along the chamber body starting from a maximum inside diameter, the rounded shape of a bottom portion has a first integral transition that is a tangential transition to a first frustoconical shape. Continuing moving circumferentially downward, the first frustoconical shape has a second integral transition to a second frustoconical shape. The second frustoconical shape at a distal end has a bottom opening configured to fit within an opened bottleneck. The first frustoconical shape may have a minimum angle of 5 degrees relative to a horizontal plane. The second integral transition may be a radial second integral transition having an inside surface radius of at least 0.25 inches.
Abstract:
A hollow expansion chamber of the present invention is configured to temporarily contain an expansion of bubbles during an aeration process for aerating a liquid, where a chamber body of the expansion chamber has a rounded shape. When moving circumferentially downward along the chamber body starting from a maximum inside diameter, the rounded shape of a bottom portion has a first integral transition that is a tangential transition to a first frustoconical shape. Continuing moving circumferentially downward, the first frustoconical shape has a second integral transition to a cylindrical extension. The cylindrical extension at a distal end has a bottom opening configured to fit within an opened bottleneck. The first frustoconical shape has a minimum angle of 15 degrees relative to a horizontal plane. The second integral transition is a radial second integral transition having an inside surface radius of at least 0.25 inches.
Abstract:
FIG. 1 is a perspective view of a wine bubbler device embodying our new design; FIG. 2 is another perspective view of the structure of FIG. 1 from a different perspective view in relation to FIG. 1; FIG. 3 is a front elevation view of the structure of FIG. 1; FIG. 4 is a rear elevation view of the structure of FIG. 1; FIG. 5 is a left side elevation view of the structure of FIG. 1; FIG. 6 is a right side elevation view of the structure of FIG. 1; FIG. 7 is a top plan view of the structure of FIG. 1; FIG. 8 is a bottom plan view of the structure of FIG. 1; FIG. 9 is a perspective view of another embodiment of a wine bubbler device embodying our new design; FIG. 10 is another perspective view of the structure of FIG. 9 from a different perspective view in relation to FIG. 9; FIG. 11 is a front elevation view of the structure of FIG. 9; FIG. 12 is a rear elevation view of the structure of FIG. 9; FIG. 13 is a left side elevation view of the structure of FIG. 9; FIG. 14 is a right side elevation view of the structure of FIG. 9; FIG. 15 is a top plan view of the structure of FIG. 9; and, FIG. 16 is a bottom plan view of the structure of FIG. 9. The broken lines depict environmental subject matter, are for illustration only and form no part of the claimed design.
Abstract:
A pair of pants or suit includes a sealable opening for relief of bodily fluids. A frame is sealed in a waterproof manner to the pair of pants or suit disposed in a groin section, the frame forming a frame aperture separating an outside and inside of the pair of pants or suit. A lid is movably connected to the frame disposed on the outside of the pair of pants or suit and configured to engage the frame aperture, wherein the lid in an open position allows access through the frame aperture and the lid in a closed position does not allow access through the frame aperture. A seal is disposed between the frame and the lid forming a waterproof closure of the frame aperture when the lid is in the closed position.