Patents by Inventor William Hoffman
William Hoffman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20040204718Abstract: An apparatus (10) for insertion into a body lumen (16) includes an elongate member (30) having a proximal end (32) and a distal end (34) insertable into the body lumen (16). At least one clamping arm (100) includes a first end (102) having a pivotal connection with the distal end (34) of the elongate member (30). The pivotal connection provides pivotal movement of the at least one clamping arm (100) relative to the elongate member (30). The at least one clamping arm (100) extends away from the pivotal connection toward the proximal end (32) of the elongate member (30). The apparatus (10) also includes a control mechanism (40) for controlling the pivotal movement of the at least one clamping arm (100) relative to the elongate member (30). The apparatus (10) may also include an assembly (150) for controlling advancement of the member (30) in the body lumen (16).Type: ApplicationFiled: March 18, 2004Publication date: October 14, 2004Applicant: The Cleveland Clinic FoundationInventor: Steven William Hoffman
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Publication number: 20030131846Abstract: Improved full-face, flushed-seal respirators are provided having a primary sealing element adjacent to a breathing space and a secondary sealing element. Exhaled air (i.e., clean air obtained by passage through a filtering element or elements) is passed from the breathing space into a flushing channel formed between the primary and secondary seals. If there is leakage in the primary seal, air from this flushing channel leaks into the breathing space rather than ambient air. Air within the flushing channel will predominately be air that has already passed through the filtering elements. The present invention provides, therefore, an inexpensive respirator which provides significantly more protection than conventional negative-pressure respirators.Type: ApplicationFiled: December 10, 2002Publication date: July 17, 2003Inventors: Donald L. Campbell, Christopher C. Coffey, William A. Hoffman, Judith B. Hudnall
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Publication number: 20030098835Abstract: A device (10) for controlling common mode electrode voltage in a liquid crystal display includes at least a first sensor (12) for measuring flicker resulting from applying a video signal with a predetermined color and drive level to an imager. A detector (18) for determining a difference between a positive field detector voltage and a negative field detector voltage is used to provide a feedback loop for feeding back the difference to a controller to adjust the common mode electrode voltage.Type: ApplicationFiled: July 30, 2002Publication date: May 29, 2003Inventors: Eugene Murphy O'Donnell, Brent William Hoffman
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Patent number: 6452538Abstract: A low-cost satellite system and method for using it for continuously monitoring near space and providing real-time data, both astronomical and space-environmental, is described and claimed. Low cost is achieved by disposing outwardly facing active and passive detection means aboard telecommunications and other satellites, and providing data from such means to subscribers. The system and method enable practical means to monitor space for approaching foreign bodies, providing high quality information for e.g., underfunded educational institutions while making enhanced use of geostationary orbits, a scarce resource, among other benefits.Type: GrantFiled: September 16, 2000Date of Patent: September 17, 2002Assignee: Robill ProductsInventor: William A. Hoffman, III
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Patent number: 6248831Abstract: A process for production of a polyethylene blend in situ comprising contacting ethylene and at least one alpha-olefin with a magnesium/titanium based catalyst system including a partially activated precursor and a cocatalyst in each of two fluidized bed reactors connected in series, one of the provisos being that the precursor is formed by contacting an alkylaluminum halide with a solid reaction product prepared from a magnesium alkoxide, a titanium tetraalkoxide, and a solubility enhancing agent.Type: GrantFiled: December 6, 1999Date of Patent: June 19, 2001Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Vinayak Maheshwari, Robert Charles Job, William A. Hoffman, III, William James Michie, Jr.
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Patent number: 6196107Abstract: The inventive device includes a box-shaped steel shell and rigid polyurethane foam which partially occupies the shell's interior so as to leave a compartment to be used for situation of a suspected explosive object. The compartment is accessed by a doored entrance which is provided in the shell. Some inventive embodiments include a polyethylene liner for foam wear protection, and/or a high-strength layer for attenuating explosive fragmentation. Foam bodies are carefully packed inside the compartment for separating the suspected explosive device from the doored entrance and for stabilizing the suspected explosive object during transit. Upon detonation, the foam pulverizes and the shell inelastically deforms into an ovaloid or cylindroid shape. The shell's edges and corners are convexly contoured for thwarting localized strain concentrations in the shell.Type: GrantFiled: April 10, 1998Date of Patent: March 6, 2001Assignee: The United States of America as represented by the Secretary of the NavyInventors: William A. Hoffman, David T. Wilson
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Patent number: 6003823Abstract: A platform adaptor for attachment to a support stand for supporting a large object such as a boat at dry dock includes a support beam which is pivotally connected to a center pole of the support stand and two support struts which extend downwardly from the support beam to attachment to two legs of the support stand such that the support beam will be generally horizontally oriented. A platform plank can be positioned on support beams of two platform adaptors attached to two spaced apart support stands to provide a platform for people and equipment located adjacent the supported object.Type: GrantFiled: December 9, 1997Date of Patent: December 21, 1999Inventor: William Hoffman
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Patent number: 5972975Abstract: Substituted 2-aminopyridine compounds of Formula (I) and pharmaceutically acceptable salts which have been found useful in the treatment of nitric oxide synthase mediated diseases and disorders.Type: GrantFiled: May 22, 1997Date of Patent: October 26, 1999Assignee: Merck & Co., Inc.Inventors: Craig Esser, William Hagmann, William Hoffman, Shrenik Shah, Kenny Wong, Renee Chabin, Ravindra Guthikonda, Malcolm Maccoss, Charles Caldwell, Philippe Durette
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Patent number: 5869950Abstract: A hybrid electric vehicle includes a lead-acid traction battery made up of a plurality of series-connected modules. During operation of the vehicle, the traction battery is discharged for acceleration, and charged by an ancillary power source. To maximize the capacity of the traction battery to accept regeneration charge current from dynamic braking, and to produce useful traction motor current, the modules of the traction battery are equalized during normal operation of the hybrid electric vehicle.Type: GrantFiled: October 30, 1997Date of Patent: February 9, 1999Assignee: Lockheed Martin Corp.Inventors: David William Hoffman, Jr., Timothy Michael Grewe
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Patent number: 5828201Abstract: A hybrid electric vehicle includes a lead-acid traction battery made up of a plurality of series-connected modules. During operation of the vehicle, the traction battery is discharged for acceleration, and charged by an ancillary power source. The traction battery is desirably not fully charged at the beginning of a day's operation, so that overcharging cannot occur, so the battery spends long periods of time in a partially charged condition. When not fully charged for long periods of time, sulfation may reduce the charge storage capacity of the battery. A maintenance procedure takes place when the vehicle is not operating, in which one or more modules of the traction battery, but less than all the modules, are fully charged, then partially discharged. The full charging tends to reduce sulfation in the particular module being maintained, and the partial discharge restores its charge condition to that prior to the full charge. Each of the modules is eventually maintained by a programmed controller.Type: GrantFiled: October 30, 1997Date of Patent: October 27, 1998Assignee: Lockheed Martin CorporationInventors: David William Hoffman, Jr., Timothy Michael Grewe
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Patent number: 5786373Abstract: Novel fibrinogen receptor antagonists of the formula: X--Y--Z-Aryl-A--B and the pharmaceutically acceptable salts thereof, wherein Aryl is a 5-membered aromatic ring system containing 1 or 2 heteroatoms chosen from N, O or S wherein ring atoms may be unsubstituted or substituted with R.sup.5 and wherein S may be substituted with 0, 1 or 2 oxygen atoms; and X comprises various Nitrogen substituents including aromatic or nonaromatic systems; Y comprises, for example, alkyl or alkylaminocarbonylalkyl groups and Z and A are substituents which when present are independently chosen from alkyl or alkyloxyalkyl or other groups as defined herein; B is (a) or (b). The claimed compounds exhibit fibrinogen receptor antagonist activity, inhibit platelet aggregation and are therefore useful in modulating or preventing thrombus formation.Type: GrantFiled: May 31, 1995Date of Patent: July 28, 1998Assignee: Merck & Co., Inc.Inventors: George D. Hartman, John D. Prugh, Melissa S. Egbertson, Mark E. Duggan, William Hoffman
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Patent number: 5648368Abstract: Novel fibrinogen receptor antagonists of the formula:X--Y--Z--Aryl--A--Bare provided in which the claimed compounds exhibit fibrinogen receptor antagonist activity, inhibit platelet aggregation and are therefore useful in modulating thrombus formation.Type: GrantFiled: June 1, 1995Date of Patent: July 15, 1997Assignee: Merck & Co., Inc.Inventors: Melissa S. Egbertson, Laura M. Vassallo, George D. Hartman, Wasyl Halczenko, David B. Whitman, James J. Perkins, Amy E. Krause, Nathan Ihle, David Alan Claremon, William Hoffman, Mark E. Duggan
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Patent number: 5559127Abstract: Fibrinogen receptor antagonists of the formula: ##STR1## wherein A,B,D,E,Y are as defined in the specification, are disclosed for use in inhibiting the binding of fibrinogen to blood platelets and for inhibiting the aggregation of blood platelets.Type: GrantFiled: May 31, 1995Date of Patent: September 24, 1996Assignee: Merck & Co., Inc.Inventors: George D. Hartman, John D. Prugh, Melissa S. Egbertson, Mark E. Duggan, William Hoffman, Wasyl Halezenko, Ben Askew
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Patent number: 4839200Abstract: The present invention describes a pre-treated recording media capable of receiving a high resolution aqueous-based ink jet printed layer as well as a method of preparing the same, wherein the method comprises the steps of: printing a recording media with an oil-based printing ink; drying the oil-based ink layer; coating over the oil-based ink layer with a water-soluble adhesive-like substance; drying the coating of adhesive-like substance; ink jet printing an aqueous-based ink layer onto the adhesive-like substance; and, drying the aqueous-based ink jet printed layer.Type: GrantFiled: May 4, 1987Date of Patent: June 13, 1989Assignee: Webcraft Technologies, Inc.Inventors: William Hoffman, Marcelo Lanas, Douglas Weiss
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Patent number: 4207155Abstract: A new composition of matter particularly useful as a diluent in ultraviolet coating compositions is disclosed, having the formulae : ##STR1## wherein R is --CH.sub.3 or --CH.sub.2 CH.sub.3, R' is hydrogen, C.sub.1 -C.sub.3 alkyl or C.sub.1 -C.sub.3 halogenated alkyl, R" is hydrogen or methyl, and n is 1-4.Type: GrantFiled: June 20, 1978Date of Patent: June 10, 1980Assignee: Celanese CorporationInventors: Preston K. Martin, William A. Hoffman, III, John C. Trebellas
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Patent number: 4196976Abstract: A multi-colored illuminated display device whereby colors are constantly changing due to small variations of temperature in the air moving about a contoured sheet of encapsulated cholesteric phase liquid crystal-coated polymeric film situated in a clear, colorless chimney. The rear interior surface of the chimney is coated to prevent the transmission of light therethrough, thus enhancing the reflected colors on the viewing faces. A source of heat and light such as a light bulb is used at the base. The heat rises by convection assisted by louvres or a small low speed fan may be installed. Many colorful designs may be achieved by varying the shape of the liquid crystal sheel and the range of heat temperatures used.Type: GrantFiled: January 30, 1978Date of Patent: April 8, 1980Inventor: William A. Hoffman, III
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Patent number: 4100294Abstract: 5-[Hydroxy(substituted)methyl]-2,3-dihydrobenzo-furan-2-carboxylic acids, the pharmaceutically acceptable salt, ester and amide derivatives thereof and combinations of these compounds with antikaluretic agents are disclosed having diuretic-saluretic, uricosuric and antihypertensive activity.Type: GrantFiled: December 6, 1976Date of Patent: July 11, 1978Assignee: Merck & Co., Inc.Inventors: Edward J. Cragoe, Jr., Otto W. Woltersdorf, Jr., William Hoffman
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Patent number: 4054614Abstract: Water soluble polyester coating compositions convertible to baked coatings characterized by chemical resistance, hardness and flexibility comprising a polyol component incorporating a minor proportion of pentaerythritol and a coupling agent constituted by phthalic anhydride. After neutralizing with a base the water soluble polyester can be interacted with a cross-linking agent, e.g., an aminoplast.Type: GrantFiled: February 23, 1976Date of Patent: October 18, 1977Assignee: Celanese CorporationInventor: William A. Hoffman, III
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Patent number: 3936026Abstract: A swivel base assembly for supporting a device such as a video display terminal (including a video monitor and a keyboard) and including means for rotating the device through a large angle, for example, 270.degree.. The swivel base assembly includes a tray on which the device is positioned and a circular base member having a space for containing a circularly- wound data-carrying cable, such as a coaxial cable, for use by the device on the tray. The base member also includes a pair of upstanding spaced stop members formed therein and arranged to cooperate with a depressed stop member formed in the tray to establish the aforementioned 270.degree. range of angular rotation.Type: GrantFiled: March 24, 1975Date of Patent: February 3, 1976Assignee: Ultronic Systems CorporationInventors: Herbert J. Hampel, William A. Hoffman