Patents Assigned to Leseman Davis, LLC
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Patent number: 8801823Abstract: A system for separating contaminants from an airstream, including a centrifugal fan and housing; a contaminant containment vessel mounted to an outer surface of the housing; and a diverter in the airstream downstream of the fan and within the housing, the diverter being configured to separate a portion of the airstream from a remainder of the airstream, accelerate the portion of the airstream towards the containment vessel, and thereafter guide the portion of the airstream towards the remainder of the airstream. The diverter preferably does not negatively impact the rated performance of the fan, such that a performance of the system is not measurably different than the rated performance of the fan and housing combination. The diverter may accelerate contaminants entrained in the airstream toward the containment vessel, thereby separating the contaminants from the airstream.Type: GrantFiled: May 28, 2013Date of Patent: August 12, 2014Assignee: Leseman Davis, LLCInventors: Joseph Byron Davis, Gary Thelen Leseman
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Publication number: 20130255497Abstract: A system for separating contaminants from an airstream, including a centrifugal fan and housing; a contaminant containment vessel mounted to an outer surface of the housing; and a diverter in the airstream downstream of the fan and within the housing, the diverter being configured to separate a portion of the airstream from a remainder of the airstream, accelerate the portion of the airstream towards the containment vessel, and thereafter guide the portion of the airstream towards the remainder of the airstream. The diverter preferably does not negatively impact the rated performance of the fan, such that a performance of the system is not measurably different than the rated performance of the fan and housing combination. The diverter may accelerate contaminants entrained in the airstream toward the containment vessel, thereby separating the contaminants from the airstream.Type: ApplicationFiled: May 28, 2013Publication date: October 3, 2013Applicant: Leseman Davis, LLCInventors: Joseph Byron Davis, Gary Thelen Leseman
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Patent number: 8470064Abstract: A system for separating contaminants from an airstream, including a centrifugal fan and housing; a contaminant containment vessel mounted to an outer surface of the housing; and a diverter in the airstream downstream of the fan and within the housing, the diverter being configured to separate a portion of the airstream from a remainder of the airstream, accelerate the portion of the airstream towards the containment vessel, and thereafter guide the portion of the airstream towards the remainder of the airstream. The diverter preferably does not negatively impact the rated performance of the fan, such that a performance of the system is not measurably different than the rated performance of the fan and housing combination. The diverter may accelerate contaminants entrained in the airstream toward the containment vessel, thereby separating the contaminants from the airstream.Type: GrantFiled: March 30, 2011Date of Patent: June 25, 2013Assignee: Leseman Davis, LLCInventors: Joseph Byron Davis, Gary Thelen Leseman
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Patent number: 8070542Abstract: A primary exhaust bypass for a water-borne vessel having a seat member and a closure member coupled to the seat member, wherein the seat and closure members are configured to seal against exhaust leakage in the closed position and to allow exhaust leakage in the opened condition, and a locking mechanism, wherein the bypass is configured to open when the vessel lists a predetermined amount. A method of bypassing a blocked primary exhaust system may include establishing a bypass exhaust route, providing a normally-closed bypass mechanism at a distal portion of the bypass exhaust route, and changing the orientation of the bypass mechanism with respect to gravity, which may allow the bypass mechanism to open.Type: GrantFiled: December 12, 2008Date of Patent: December 6, 2011Assignee: Leseman Davis, LLCInventors: Joseph B. Davis, Gary T Leseman, David A. Peth
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Publication number: 20110247308Abstract: A system for separating contaminants from an airstream, including a centrifugal fan and housing; a contaminant containment vessel mounted to an outer surface of the housing; and a diverter in the airstream downstream of the fan and within the housing, the diverter being configured to separate a portion of the airstream from a remainder of the airstream, accelerate the portion of the airstream towards the containment vessel, and thereafter guide the portion of the airstream towards the remainder of the airstream. The diverter preferably does not negatively impact the rated performance of the fan, such that a performance of the system is not measurably different than the rated performance of the fan and housing combination. The diverter may accelerate contaminants entrained in the airstream toward the containment vessel, thereby separating the contaminants from the airstream.Type: ApplicationFiled: March 30, 2011Publication date: October 13, 2011Applicant: LESEMAN DAVIS, LLCInventors: Joseph Byron DAVIS, Gary Thelen LESEMAN
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Publication number: 20100313566Abstract: A system for manipulating engine exhaust gases away from inhabited areas comprises an air pressurization system coupled in fluid communication to a housing. The housing is adapted to reside adjacent a terminal portion of an exhaust pipe so that pressurized air injected into the housing entrains the exhaust gases and disperses them from the housing.Type: ApplicationFiled: May 4, 2010Publication date: December 16, 2010Applicant: LESEMAN DAVIS, LLCInventors: GARY THELEN LESEMAN, JOSEPH BYRON DAVIS
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Patent number: 7832772Abstract: An assembly for establishing a water-tight seal for a conduit passing through a wall or other structure wherein the conduit conveys heated fluid, such as exhaust gasses. The assembly is adapted to minimize the heat transferred to the wall or other structure by creating a circuitous heat transfer path in conjunction with thermally insulating materials.Type: GrantFiled: September 17, 2008Date of Patent: November 16, 2010Assignee: Leseman Davis, LLCInventors: Gary T. Leseman, Joseph B. Davis
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Patent number: 7707828Abstract: A system for manipulating engine exhaust gases away from inhabited areas comprises an air pressurization system coupled in fluid communication to a housing. The housing is adapted to reside adjacent a terminal portion of an exhaust pipe so that pressurized air injected into the housing entrains the exhaust gases and disperses them from the housing.Type: GrantFiled: December 8, 2006Date of Patent: May 4, 2010Assignee: Leseman Davis, LLCInventors: Gary Thelen Leseman, Joseph Byron Davis
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Publication number: 20090156071Abstract: A primary exhaust bypass for a water-borne vessel having a seat member and a closure member coupled to the seat member, wherein the seat and closure members are configured to seal against exhaust leakage in the closed position and to allow exhaust leakage in the opened condition, and a locking mechanism, wherein the bypass is configured to open when the vessel lists a predetermined amount. A method of bypassing a blocked primary exhaust system may include establishing a bypass exhaust route, providing a normally-closed bypass mechanism at a distal portion of the bypass exhaust route, and changing the orientation of the bypass mechanism with respect to gravity, which may allow the bypass mechanism to open.Type: ApplicationFiled: December 12, 2008Publication date: June 18, 2009Applicant: LESEMAN DAVIS LLCInventors: Joseph B. DAVIS, Gary T. LESEMAN, David A. PETH