Patents by Inventor Philip L. Hoffman
Philip L. 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: 20150360381Abstract: A cutting apparatus for use on a stream of discrete objects is described and which includes a conveying surface for transporting a stream of discrete objects; an image capturing device for capturing images of the discrete objects; a controller coupled to the image capturing device and which identifies foreign objects and unacceptable features of objects being processed; a voice coil actuator mounted above the conveying surface; and a knife mounted on the voice coil actuator and which is reciprocally moved into and out of engagement with objects passing therebeneath.Type: ApplicationFiled: June 17, 2014Publication date: December 17, 2015Applicant: KEY TECHNOLOGY, INC.Inventors: Roydan T. Tomlinson, Sean G. Calvert, Philip L. Hoffman
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Patent number: 8662314Abstract: The present invention is an apparatus and method for sorting foreign material and undesirable articles from a product stream. A mechanical diverter having a concave shape is responsive to an inspection station coupled to the product stream. The mechanical diverter is employed to effectively launch or otherwise redirect undesirable articles in an alternate path. In addition, an air ejector in one form of the invention is provided and is responsive to the inspection station and is employed to dislodge foreign material from the product stream.Type: GrantFiled: December 6, 2011Date of Patent: March 4, 2014Assignee: Key Technology, Inc.Inventors: Peter T. Jones, Philip L. Hoffman, Hans G. Halmberger, Ken McGarvey, James Ruff, Mike Lemke, Timothy Reardon
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Patent number: 8220639Abstract: The present invention is an apparatus and method for sorting foreign material and undesirable articles from a product stream. A mechanical diverter having a concave shape is responsive to an inspection station coupled to the product stream. The mechanical diverter is employed to effectively launch or otherwise redirect undesirable articles in an alternate path. In addition, an air ejector is responsive to the inspection station and is employed to dislodge foreign material from the product stream.Type: GrantFiled: March 19, 2009Date of Patent: July 17, 2012Assignee: Key Technology, Inc.Inventors: Philip L. Hoffman, Hans G. Haimberger, Ken McGarvey, James Ruff, Mike Lemke, Timothy Reardon
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Publication number: 20100236994Abstract: The present invention is an apparatus and method for sorting foreign material and undesirable articles from a product stream. A mechanical diverter having a concave shape is responsive to an inspection station coupled to the product stream. The mechanical diverter is employed to effectively launch or otherwise redirect undesirable articles in an alternate path. In addition, an air ejector is responsive to the inspection station and is employed to dislodge foreign material from the product stream.Type: ApplicationFiled: March 19, 2009Publication date: September 23, 2010Inventors: Philip L. Hoffman, Hans G. Haimberger, Ken McGarvey, James Ruff, Mike Lemke, Timothy Reardon
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Patent number: 6152282Abstract: A laned conveyor apparatus includes an infeed roller and an outfeed roller rotatably mounted to a frame in spaced apart relation for movably supporting a flexible product-carrying belt that forms a closed loop about the rollers to define a conveying region having a length and a width. A plurality of elastic separating bands are removably positioned around the rollers and the product-carrying belt and spaced apart at intervals along the width of the conveying region to form lanes along the length of the conveying region. The separating bands contact an outer surface of the product-carrying belt to form a frictional interface with the product-carrying belt that causes the separating bands to move in coordination with movement of the product-carrying belt. A guide mechanism mounted to the frame includes multiple guide features spaced apart at intervals along the width of the conveying region for guiding the separating bands so that the lanes are accurately and precisely positioned in relation to the frame.Type: GrantFiled: February 1, 1999Date of Patent: November 28, 2000Assignee: SRC Vision, Inc.Inventors: James Ewan, Philip L. Hoffman
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Patent number: 5957306Abstract: An air decelerator for an inspection and sorting system employing pneumatic ejectors, comprising an air plenum adapted to generally cause a stream of air to flow in a direction opposing acceptable articles moving in a trajectory, and thereby decelerate the velocity of the articles to reduce the impact of the articles when they come into contact with the receiving surface to minimize damage to the articles caused by the impact.Type: GrantFiled: June 18, 1997Date of Patent: September 28, 1999Assignee: SRC Vision, Inc.Inventor: Philip L. Hoffman
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Patent number: 5443164Abstract: A plastic container sorter (10) moves labeled plastic containers (14, 20, 48, 54, 58) of various colors and transparencies through an inspection zone (18). A pair of line-scanning color cameras (22, 24) capture respective transmittance and reflectance images of the containers and generate raw transmittance and reflectance image data. The raw container data are digitized, normalized, and binarized to provide accurate transmittance and reflectance container RGB image data and binarized image data for differentiating container image data from background data. Container sorting entails eroding (120) the binarized transmittance image and merging (122) the eroded image with the transmittance image data to yield a transmittance image. The eroded transmittance image is analyzed (124, 126) to determine whether the container is opaque. If the container is opaque, color analysis proceeds by analyzing the reflectance image data.Type: GrantFiled: August 10, 1993Date of Patent: August 22, 1995Assignee: Simco/Ramic CorporationInventors: Casey P. Walsh, Philip L. Hoffman, William S. Drummond, H. Parks Squyres
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Patent number: 5431289Abstract: A conveyor system for transporting and aligning articles to be sorted in an automated bulk processing system is disclosed. The conveyor comprises one or more product-carrying lanes, each lane comprising two side belts separated by a central product-carrying belt. Each of the side belts is raised with respect to the product-carrying belt, thereby guiding articles on to the product-carrying belt. In a preferred embodiment, the product-carrying belt has two product-carrying surfaces and is provided with a 180.degree. lengthwise twist whereby the product-carrying surfaces are alternately presented on the upper surface of the conveyor system for each complete belt travel cycle. The 180.degree. lengthwise twist is maintained in position by a belt guide or comb located on the underside of the conveyor system.Type: GrantFiled: February 15, 1994Date of Patent: July 11, 1995Assignee: Simco/Ramic CorporationInventor: Philip L. Hoffman
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Patent number: 5337884Abstract: An optical inspection system (10) has a conveyor belt (18) that turns at a non-rotating turning bar (22). An inner surface (20) of the conveyor belt contacts a turning surface (22T) of the turning bar. A reservoir (60) for holding a lubricant (62), such as water, is formed by a free surface (22F) of the turning bar, two reservoir side walls (54, 56), a free surface (52F) of a feed bar (52), and a lower surface (58). The feed bar has orifices (69) for discharge of the lubricant into the reservoir and is connected to a source of lubricant subject to volume regulation. When the conveyor belt is in operation, the volume of lubricant supplied to the reservoir keeps the line of contact (22L) between the inner surface and the turning surface covered with lubricant. Rods (64, 66) regulate the flow of lubricant so as to maintain adequate coverage with lubricant of the region (46) where the conveyor belt turns over the turning bar and of the line of contact between the inner surface and the turning surface.Type: GrantFiled: August 9, 1993Date of Patent: August 16, 1994Assignee: Simco/Ramic CorporationInventors: Philip L. Hoffman, Richard J. Signorello
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Patent number: 5297667Abstract: A stabilizing system stabilizes articles carried on conveyors for automated bulk processing equipment. In a preferred embodiment, a flow of gas (e.g., air) is projected along a conveyor belt in a direction generally parallel to that in which articles are carried by the belt. The air flow has a velocity (i.e., speed and direction) substantially the same as that of the belt to reduce aerodynamic resistance that would otherwise bear against the articles. As a result, the articles may be transported on the conveyor belt at high speeds with substantially increased stability or throughput.Type: GrantFiled: November 12, 1992Date of Patent: March 29, 1994Assignee: Simco/Ramic CorporationInventors: Philip L. Hoffman, David A. Welbon, Richard J. Signorello