 Hydraulic control valve unit |
| What is claimed is: 1. Valving apparatus comprising a main valve, said main valve including a main ... |
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| Indicator assembly |
| These and other objects of the present invention are achieved by an indicator assembly comprised of ... |
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| Valve combination |
| The invention provides a valve combination which may be used in place of conventional solenoid ... |
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| Freely programmable position indicating apparatus |
| OF PREFERRED EMBODIMENTS Throughout all the Figures, same or corresponding elements are generally ... |
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| Fluid control element |
| OF THE INVENTION Referring now to FIGS. 1 and 2, the configuration of the control elements in ... |
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| Inline liquid flow control valve |
| For the purposes of promoting an understanding of the principles disclosed herein, reference will ... |
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| Directional gate valve |
| What is calimed is: 1. A directional gate valve which can be used as a control element and consists ... |
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| Steering control unit |
| Accordingly, it is an object of the present invention to provide an improved fluid controller of ... |
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| Tapered boom hose |
| A boom hose for use in a concrete pumping system of the type utilizing a concrete pump to provide ... |
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| Laminar flow element and method for metering fluid flow |
| These objects and other objects are obtained with the instant invention of an adjustable laminar ... |
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Implantable heart monitors having flat capacitors with curved profiles
| Details |
Inventors: O'Phelan, Michael J.; Schmidt, Brian L.;
Assignee: Cardiac Pacemakers, Inc. (St. Paul, MN)
Primary Examiner: Thomas; Eric W.
Assistant Examiner:
Attorney, Agent or Firm: Schwegman, Lundberg, Woessner & Kluth, P.A.
Implantable heart-monitoring devices, such as defibrillators, pacemakers, and cardioverters, detect onset of abnormal heart rhythms and automatically apply corrective electrical therapy, specifically one or more bursts of electric charge, to abnormally beating hearts. Critical parts in these devices include the capacitors that store and deliver the bursts of electric charge. Some devices use flat aluminum electrolytic capacitors have cases with right-angle corners which leave gaps when placed against the rounded interior surfaces of typical device housings. These gaps and voids not only waste space, but ultimately force patients to endure implantable devices with larger housings than otherwise necessary. Accordingly, the inventors devised several capacitor structures that have curved profiles conforming to the rounded interior surfaces of device housings. Some exemplary capacitor embodiments include two or more staggered capacitor elements, and other embodiments stagger capacitors of different types and/or sizes. |
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DETAILED DESCRIPTION OF THE EMBODIMENTS The following detailed description, which references and incorporates the above-identified figures, describes and illustrates one or more specific embodiments of the invention.
These embodiments, offered not to limit but only to exemplify and teach, are shown and described in sufficient detail to enable those skilled in the art to implement or practice the invention.
Thus, where appropriate to avoid obscuring the invention, the description may omit certain information known to those of skill in the art.
As used herein, the term "profile" refers to the general outline of a portion of an object taken in or projected onto a plane generally perpendicular to a major surface of the object.
Thus, for example, in some flat capacitors, profile means the outline of the capacitor case and/or the capacitor stack taken in a plane perpendicular to the major surfaces of the case or the capacitor stack.
As used herein, the term "staggered" refers to the existence of an offset between respective adjacent surfaces of two or more juxtaposed or proximate objects.
Thus, for example, the offset can result from offsetting one of the objects relative the other object or controlling the relative size and placement of the objects.
FIG.
1 shows a portion of an exemplary capacitor 100 incorporating the present invention.
Capacitor 100 includes a stack 102 of two or more electrically coupled capacitor modules 102a, 102b, 102c, 102d, and 102e within a capacitor case 104.
Modules 102a-102e are staggered so that their edges generally (or at least a portion of side of the stack) define a profile 106 that generally conforms or is substantially congruent to an adjacent curved interior portion 104a of capacitor case 104.
FIG.
2, a section view of capacitor 100 taken along line 2—2 shows that modules 102a-102e are staggered in two dimensions.
In this view, capacitor modules 102a-102e define a profile 108, which is generally congruent to a curved portion 104b of case 104.
Although profiles 106 and 108 are quite distinct in this exemplary embodiment, other embodiments make profiles 106 and 108 substantially congruent
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Metal Working 
