Patents by Inventor David W. Purcell
David W. Purcell 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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Patent number: 8096552Abstract: An apparatus including a belt support system having a first belt support roller and a system for automatically moving the first belt support roller. The belt support system partially wraps a continuous belt on a belt drive roller. The belt support system includes the first belt support roller at an upstream side of the belt drive roller and a second belt support roller at a downstream side. The system for moving the first belt support roller moves the first roller from a first location relative to the belt drive roller to a second different location, based upon a predetermined load of the belt on the first belt support roller to thereby reduce an amount of wrap of the belt on the belt drive roller and reduce a length of the belt located proximate to the belt drive roller between the first and second belt support rollers.Type: GrantFiled: June 20, 2008Date of Patent: January 17, 2012Assignee: Pitney Bowes Inc.Inventors: Brad A. Swinford, Boris Rozenfeld, David W. Purcell
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Patent number: 8016282Abstract: A method of singulating overlapping items includes receiving the overlapping items in a singulation device, the device including a first transport element configured for rotation in a first direction and a second transport element in opposing relation to the first transport element, wherein the second transport element is configured for rotation in a second direction opposite to the first direction. The method further includes rotating the first transport element at a first transport speed, rotating the second transport element at a second transport speed substantially equal to the first transport speed, conveying the overlapping items between the transport elements along a transport path, decreasing the second transport speed to singulate the overlapping items, decreasing the first transport speed to reduce a speed of a lead item, and transporting the lead item away from the singulation device.Type: GrantFiled: September 26, 2008Date of Patent: September 13, 2011Assignee: Pitney Bowes Inc.Inventors: David W. Purcell, Steven J. Dacunha, Richard F. Stengl
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Publication number: 20100013142Abstract: A method of singulating overlapping items includes receiving the overlapping items in a singulation device, the device including a first transport element configured for rotation in a first direction and a second transport element in opposing relation to the first transport element, wherein the second transport element is configured for rotation in a second direction opposite to the first direction. The method further includes rotating the first transport element at a first transport speed, rotating the second transport element at a second transport speed substantially equal to the first transport speed, conveying the overlapping items between the transport elements along a transport path, decreasing the second transport speed to singulate the overlapping items, decreasing the first transport speed to reduce a speed of a lead item, and transporting the lead item away from the singulation device.Type: ApplicationFiled: September 26, 2008Publication date: January 21, 2010Applicant: Pitney Bowes Inc.Inventors: David W. PURCELL, Steven J. Dacunha, Richard F. Stengl
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Publication number: 20090318253Abstract: An apparatus including a belt support system having a first belt support roller and a system for automatically moving the first belt support roller. The belt support system partially wraps a continuous belt on a belt drive roller. The belt support system includes the first belt support roller at an upstream side of the belt drive roller and a second belt support roller at a downstream side. The system for moving the first belt support roller moves the first roller from a first location relative to the belt drive roller to a second different location, based upon a predetermined load of the belt on the first belt support roller to thereby reduce an amount of wrap of the belt on the belt drive roller and reduce a length of the belt located proximate to the belt drive roller between the first and second belt support rollers.Type: ApplicationFiled: June 20, 2008Publication date: December 24, 2009Applicant: Pitney Bowes Inc.Inventors: Brad A. SWINFORD, Boris Rozenfeld, David W. Purcell
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Patent number: 7611139Abstract: A method of transporting items includes receiving a group of one or more items in a singulation device, implementing a singulation routine, measuring a speed of a first portion of the group, measuring a speed of a second portion of the group, and comparing the speed of the first portion with the speed of the second portion. The method may further include continuing the singulation routine where the speed of the first portion is not equal to the speed of the second portion, and terminating the singulation routine where the speed of the first portion is equal to the speed of the second portion. The method may also include transporting a lead item away from the singulation device. The singulation device may include opposing transport elements.Type: GrantFiled: December 22, 2008Date of Patent: November 3, 2009Assignee: Pitney Bowes Inc.Inventors: David W. Purcell, Steven J. DaCunha, Richard F. Stengl
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Publication number: 20090194469Abstract: A sorter system comprises a transport for advancing items along a transport path, a diverter for directing items from the transport path into a selected pocket along a sort path, and a pocket brake disposed in the selected pocket. In one embodiment, the pocket brake comprises a pivotable flange defining a pivot axis, at least one support element disposed on the flange, a braking element disposed on the at least one support element for decreasing a velocity of an item entering the selected pocket along the sort path, and a registration surface for stopping translation of the item along the sort path.Type: ApplicationFiled: February 6, 2008Publication date: August 6, 2009Applicant: Pitney Bowes Inc.Inventors: David P. Chastain, Brad A. Swinford, Allen L. Simers, David W. Purcell
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Publication number: 20090160118Abstract: A method of transporting items includes receiving a group of one or more items in a singulation device, implementing a singulation routine, measuring a speed of a first portion of the group, measuring a speed of a second portion of the group, and comparing the speed of the first portion with the speed of the second portion. The method may further include continuing the singulation routine where the speed of the first portion is not equal to the speed of the second portion, and terminating the singulation routine where the speed of the first portion is equal to the speed of the second portion. The method may also include transporting a lead item away from the singulation device. The singulation device may include opposing transport elements.Type: ApplicationFiled: December 22, 2008Publication date: June 25, 2009Applicant: Pitney Bowes Inc.Inventors: David W. Purcell, Steven J. Dacunha, Richard F. Stengl
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Patent number: 7497435Abstract: A backing plate support system is provided for a mailpiece feeder mechanism wherein mailpieces are conveyed vertically, on-edge along a transport deck to a transfer station for subsequent sortation and delivery. The backing plate support system includes a guide track disposed along and adjacent to the transport deck and a plurality of backing plates each having a guide support fitting at its base. The guide support fitting engages the guide track and supports the backing plate in an orthogonal position relative to the transport deck. The backing plate support system, furthermore, includes an advancing belt disposed adjacent the guide track and adapted to be driven linearly along the transport deck and a mechanism for coupling each backing plate to the advancing belt. The mechanism facilitates relative movement of the backing support plate relative to the advancing belt in one direction while inhibiting relative motion thereof in an opposing direction.Type: GrantFiled: December 23, 2005Date of Patent: March 3, 2009Assignee: Pitney Bowes Inc.Inventors: David P. Chastain, David W. Purcell, Adam W. Fleming
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Publication number: 20080067114Abstract: A system and method for separating batches of mail in a mailpiece sorter. The system employs a card stock interposed between batches of mail, which card stock includes a ferromagnetic symbology disposed on a face surface of the card stock. An inductive proximity detector is employed to scan the ferromagnetic symbology and produce a ferromagnetic signature signal indicative of the ferromagnetic parameters of the symbology. The system conveys batches of mail containing the card stock past the inductive proximity detector such that the signature signals may be read and compared to predefined ferromagnetic signature signals stored in a signal processor. The processor may then determine the beginning and/or ending of a mailpiece job run for use by the mailpiece sorter.Type: ApplicationFiled: September 18, 2006Publication date: March 20, 2008Applicant: Pitney Bowes IncorporatedInventors: David P. Chastain, Allen L. Simers, Joshua A. Schriver, Jason W. Harbert, David W. Purcell
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Patent number: 5790429Abstract: A system for processing and encoding mail including a bin configured to hold mail and a transport coupled to said bin to receive mail therefrom. The transport displays multiple moving pieces of mail to an operator. The system includes a data entry device operable to enter data from mail moving on the transport and a coding device to receive mail from the conveyor. A controller is operatively coupled to the transport, data entry device, and coding device. The controller includes an address signal corresponding to at least a portion of an address of a mail piece entered with the data entry device by the operator, a routing code signal determined in accordance with the address signal, a performance signal corresponding to data entry capability of the operator, and a transport speed signal corresponding to speed of the transport.Type: GrantFiled: March 4, 1996Date of Patent: August 4, 1998Assignee: M.A.I.L. Code, Inc.Inventors: Christopher A. Baker, Donald Caddy, David W. Purcell, Peter N. Baker, Adam W. Fleming, David P. Chastain