Patents by Inventor David Purcell
David 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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Publication number: 20230337873Abstract: A collapsible wheeled walker with two side frames and two height adjustable upper body supports. Each upper body support includes a height adjustment tube. And each height adjustment tube may be set to a recoupable height by a height memory device coupled to the height adjustment tube for quick an easy height setting. The apparatus may include a seat that is slidably attached to the two side frames and is movable between a front position to facilitate an ample walking space inside the frames and a rear position for a user to sit. It may include an X-folder that facilitates collapsing the walker to a small footprint It may also include two forearm gutters as, part of the upper both supports that give the user an upright walking posture for health benefits.Type: ApplicationFiled: April 22, 2022Publication date: October 26, 2023Inventors: David A Purcell, Yichuan Pan
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Patent number: 10828226Abstract: A collapsible upright wheeled walker with adjustable armrests that support sufficient user upper-body weight to facilitate a natural upright gait and provide unassisted mobility for a wide range of mobility-impaired individuals. The apparatus may be easily and quickly folded (and unfolded) and may include bilateral stabilizing wheel suspensions to facilitate navigation over uneven terrain. The apparatus includes a frame-stiffening folder assembly and may also include mechanical brakes, an adjustable upper armrest assembly with removable padded forearm supports and two pairs of handles, at least one of which is disposed sufficiently forward to place the user within the polygonal footprint defined by the front and rear wheels to provide support without leaning, stooping, or risking falls.Type: GrantFiled: March 10, 2020Date of Patent: November 10, 2020Assignee: Protostar, Inc., a Delaware CorporationInventors: Peter James Fellingham, Yichuan Pan, David A Purcell, Nebojsa Sataric
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Publication number: 20200206068Abstract: A collapsible upright wheeled walker with adjustable armrests that support sufficient user upper-body weight to facilitate a natural upright gait and provide unassisted mobility for a wide range of mobility-impaired individuals. The apparatus may be easily and quickly folded (and unfolded) and may include bilateral stabilizing wheel suspensions to facilitate navigation over uneven terrain. The apparatus includes a frame-stiffening folder assembly and may also include mechanical brakes, an adjustable upper armrest assembly with removable padded forearm supports and two pairs of handles, at least one of which is disposed sufficiently forward to place the user within the polygonal footprint defined by the front and rear wheels to provide support without leaning, stooping, or risking falls.Type: ApplicationFiled: March 10, 2020Publication date: July 2, 2020Applicant: Protostar, Inc., a Delaware CorporationInventors: Peter James Fellingham, Yichuan Pan, David A. Purcell, Nebojsa Sataric
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Patent number: 10588815Abstract: A collapsible upright wheeled walker with adjustable armrests that support sufficient user upper-body weight to facilitate a natural upright gait and provide unassisted mobility for a wide range of mobility-impaired individuals. The apparatus may be easily and quickly folded (and unfolded) and may include bilateral stabilizing wheel suspensions to facilitate navigation over uneven terrain. The apparatus includes a frame-stiffening folder assembly and may also include mechanical brakes, an adjustable upper armrest assembly with removable padded forearm supports and two pairs of handles, at least one of which is disposed sufficiently forward to place the user within the polygonal footprint defined by the front and rear wheels to provide support without leaning, stooping, or risking falls.Type: GrantFiled: April 29, 2019Date of Patent: March 17, 2020Assignee: Protostar, Inc.Inventors: Peter James Fellingham, Yichuan Pan, David A Purcell, Nebojsa Sataric
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Publication number: 20190254918Abstract: A collapsible upright wheeled walker with adjustable armrests that support sufficient user upper-body weight to facilitate a natural upright gait and provide unassisted mobility for a wide range of mobility-impaired individuals. The apparatus may be easily and quickly folded (and unfolded) and may include bilateral stabilizing wheel suspensions to facilitate navigation over uneven terrain. The apparatus includes a frame-stiffening folder assembly and may also include mechanical brakes, an adjustable upper armrest assembly with removable padded forearm supports and two pairs of handles, at least one of which is disposed sufficiently forward to place the user within the polygonal footprint defined by the front and rear wheels to provide support without leaning, stooping, or risking falls.Type: ApplicationFiled: April 29, 2019Publication date: August 22, 2019Applicant: Protostar, Inc., a Delaware CorporationInventors: Peter James Fellingham, Yichuan Pan, David A. Purcell, Nebojsa Sataric
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Publication number: 20190191205Abstract: Devices, computer-readable media, and methods for presenting a secondary content in connection with a presentation of a video program on a primary screen device are disclosed. For example, a processing system may receive a timed event metadata set associated with a video program, receive a timestamp associated with the video program from a primary screen device, and detect that the timestamp matches a timed event record from the timed event metadata set. The processing system may additionally access a secondary content in accordance with the timed event record in response to the detecting and present the secondary content on a screen of the device.Type: ApplicationFiled: December 19, 2017Publication date: June 20, 2019Inventors: David B. DeLorme, Dale W. Malik, David Purcell
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Patent number: 10322056Abstract: A collapsible upright wheeled walker with adjustable armrests that support sufficient user upper-body weight to facilitate a natural upright gait and provide unassisted mobility for a wide range of mobility-impaired individuals. The apparatus may be easily and quickly folded (and unfolded) and may include bilateral stabilizing wheel suspensions to facilitate navigation over uneven terrain. The apparatus includes a frame-stiffening folder assembly and may also include mechanical brakes, an adjustable upper armrest assembly with removable padded forearm supports and two pairs of handles, at least one of which is disposed sufficiently forward to place the user within the polygonal footprint defined by the front and rear wheels to provide support without leaning, stooping, or risking falls.Type: GrantFiled: August 28, 2018Date of Patent: June 18, 2019Assignee: Protostar, Inc., a Delaware CorporationInventors: Peter James Fellingham, Yichuan Pan, David A Purcell, Nebojsa Sataric
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Publication number: 20180360686Abstract: A collapsible upright wheeled walker with adjustable armrests that support sufficient user upper-body weight to facilitate a natural upright gait and provide unassisted mobility for a wide range of mobility-impaired individuals. The apparatus may be easily and quickly folded (and unfolded) and may include bilateral stabilizing wheel suspensions to facilitate navigation over uneven terrain. The apparatus includes a frame-stiffening folder assembly and may also include mechanical brakes, an adjustable upper armrest assembly with removable padded forearm supports and two pairs of handles, at least one of which is disposed sufficiently forward to place the user within the polygonal footprint defined by the front and rear wheels to provide support without leaning, stooping, or risking falls.Type: ApplicationFiled: August 28, 2018Publication date: December 20, 2018Applicant: Protostar, Inc., a Delaware CorporationInventors: Peter James Fellingham, Yichuan Pan, David A Purcell, Nebojsa Sataric
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Publication number: 20180280226Abstract: A collapsible upright wheeled walker with adjustable armrests that support sufficient user upper-body weight to facilitate a natural upright gait and provide unassisted mobility for a wide range of mobility-impaired individuals. The apparatus may be easily and quickly folded (and unfolded) and may include bilateral stabilizing wheel suspensions to facilitate navigation over uneven terrain. The apparatus includes a frame-stiffening folder assembly and may also include mechanical brakes, an adjustable upper armrest assembly with removable padded forearm supports and two pairs of handles, at least one of which is disposed sufficiently forward to place the user within the polygonal footprint defined by the front and rear wheels to provide support without leaning, stooping, or risking falls.Type: ApplicationFiled: January 25, 2017Publication date: October 4, 2018Applicant: Protostar, Inc., a Delaware CorporationInventors: Peter James Fellingham, Yichuan Pan, David A Purcell, Nebojsa Sataric
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Patent number: 10085909Abstract: A collapsible upright wheeled walker with adjustable armrests that support sufficient user upper-body weight to facilitate a natural upright gait and provide unassisted mobility for a wide range of mobility-impaired individuals. The apparatus may be easily and quickly folded (and unfolded) and may include bilateral stabilizing wheel suspensions to facilitate navigation over uneven terrain. The apparatus includes a frame-stiffening folder assembly and may also include mechanical brakes, an adjustable upper armrest assembly with removable padded forearm supports and two pairs of handles, at least one of which is disposed sufficiently forward to place the user within the polygonal footprint defined by the front and rear wheels to provide support without leaning, stooping, or risking falls.Type: GrantFiled: January 25, 2017Date of Patent: October 2, 2018Assignee: Protostar, Inc., a Delaware CorporationInventors: Peter James Fellingham, Yichuan Pan, David A Purcell, Nebojsa Sataric
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Publication number: 20170319424Abstract: A collapsible upright wheeled walker with adjustable armrests that support sufficient user upper-body weight to facilitate a natural upright gait and provide unassisted mobility for a wide range of mobility-impaired individuals. The apparatus may be easily and quickly folded (and unfolded) and may include bilateral stabilizing wheel suspensions to facilitate navigation over uneven terrain. The apparatus includes a frame-stiffening folder assembly and may also include mechanical brakes, an adjustable upper armrest assembly with removable padded forearm supports and two pairs of handles, at least one of which is disposed sufficiently forward to place the user within the polygonal footprint defined by the front and rear wheels to provide support without leaning, stooping, or risking falls.Type: ApplicationFiled: January 25, 2017Publication date: November 9, 2017Applicant: Protostar, Inc., a Delaware CorporationInventors: Peter James Fellingham, Yichuan Pan, David A Purcell, Nebojsa Sataric
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Publication number: 20170258664Abstract: An upright wheeled walker with bilateral stabilizing wheel suspensions, and an automatic braking system integrated with obstacle avoidance systems, terrain sensors and user feedback controls. The walker provides user upper body weight support in a wheeled walker with a user safety system including a plurality of sensor, processor and control elements and an automatic braking system for avoiding unseen obstacles and automatic speed limiting on inclines.Type: ApplicationFiled: January 26, 2017Publication date: September 14, 2017Applicant: Protostar, Inc., a Delaware CorporationInventor: David A. Purcell
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Patent number: 9585807Abstract: A collapsible upright wheeled walker with adjustable armrests that support sufficient user upper-body weight to facilitate a natural upright gait and provide unassisted mobility for a wide range of mobility-impaired individuals. The apparatus may be easily and quickly folded (and unfolded) and may include bilateral stabilizing wheel suspensions to facilitate navigation over uneven terrain. The apparatus includes a frame-stiffening folder assembly and may also include mechanical brakes, an adjustable upper armrest assembly with removable padded forearm supports and two pairs of handles, at least one of which is disposed sufficiently forward to place the user within the polygonal footprint defined by the front and rear wheels to provide support without leaning, stooping, or risking falls.Type: GrantFiled: May 6, 2016Date of Patent: March 7, 2017Assignee: Protostar, Inc., a Delaware CorporationInventors: Peter James Fellingham, Yichuan Pan, David A Purcell, Nebojsa Sataric
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Publication number: 20170046723Abstract: A server implemented method and system for providing merchants with customer information by receiving customer profile data from a social network onto which a customer has logged-in using a customer's device over a network, storing the customer profile data in a storage device, generating reward data for products or services offered by merchants, the respective reward data identifying the merchants offering the respective reward, transmitting the reward data over the network to a customer's device, receiving a customer's selection of reward data for a product or service from the customer's device, receiving a message related to the product or service associated with the selected reward data from the customer's device and forwarding the message to the social network over the network for posting on the social network, storing data indicating the selection of the reward to be redeemed at the merchant by the customer; and transmitting information on the selected reward data and the stored customer profile data toType: ApplicationFiled: August 12, 2016Publication date: February 16, 2017Inventors: Joseph David Purcell, Stephen Daniel Hughes
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Publication number: 20160331626Abstract: A collapsible upright wheeled walker with adjustable armrests that support sufficient user upper-body weight to facilitate a natural upright gait and provide unassisted mobility for a wide range of mobility-impaired individuals. The apparatus may be easily and quickly folded (and unfolded) and may include bilateral stabilizing wheel suspensions to facilitate navigation over uneven terrain. The apparatus includes a frame-stiffening folder assembly and may also include mechanical brakes, an adjustable upper armrest assembly with removable padded forearm supports and two pairs of handles, at least one of which is disposed sufficiently forward to place the user within the polygonal footprint defined by the front and rear wheels to provide support without leaning, stooping, or risking falls.Type: ApplicationFiled: May 6, 2016Publication date: November 17, 2016Applicant: Protostar, Inc., a Delaware CorporationInventors: Peter James Fellingham, Yichuan Pan, David A. Purcell, Nebojsa Sataric
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Patent number: 8987626Abstract: A stacking assembly is operative to protect stacked mailpieces from damage due to abrasion. The stacking assembly includes a support blade moveably mounted to a bin for accepting a stack of mailpieces and an ingestion assembly including a Leading Edge (LE) urge roller and Trailing Edge (TE) alignment device. The LE urge roller is operative to accept mailpieces from a supply of mailpieces, and urge a leading edge portion thereof toward a sidewall of the stacking bin. The TE alignment device includes a first cam driven about an axis of rotation by a digital rotary positioning device which cam defines a surface operative to urge the trailing edge portion of each mailpiece into parallel alignment with the support blade. The stacking assembly also includes an anti-abrasion linkage responsive to rotation of the digital rotary positioning device to forcibly displace a surface of the stacked mailpieces away from a moving surface of the ingestion assembly.Type: GrantFiled: October 24, 2012Date of Patent: March 24, 2015Assignee: Pitney Bowes Inc.Inventors: Robert J. Allen, Thomas M Lyga, David Purcell, Brad A Swinford
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Patent number: 8748769Abstract: A divert assembly is described for a mailpiece sorter operative to sort mailpieces into one of a plurality of sortation bins. The divert assembly comprising a re-direct mechanism for selectively re-directing mailpieces travelling along a feed path into the sortation bin and causing each selected mailpiece to be re-directed at an angle relative to the stack of mailpieces to be accumulated in the sortation bin. The divert assembly also including a stacking assembly including a Leading Edge (LE) urge roller, a support blade, and a Trailing Edge (TE) alignment device. The LE urge roller accepts and urges each of the selected mailpieces toward a sidewall of the sortation bin while the support blade holds each of the selected mailpieces between the urge roller and the support blade and in an on-edge parallel relationship relative thereto. The support blade is moveably mounted relative to the LE urge roller to allow the accumulation of additional mailpieces between the LE urge roller and the support blade.Type: GrantFiled: October 24, 2012Date of Patent: June 10, 2014Assignee: Pitney Bowes Inc.Inventors: Robert J. Allen, Thomas M. Lyga, David Purcell, Brad A. Swinford
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Publication number: 20140110312Abstract: A divert assembly is described for a mailpiece sorter operative to sort mailpieces into one of a plurality of sortation bins. The divert assembly comprising a re-direct mechanism for selectively re-directing mailpieces travelling along a feed path into the sortation bin and causing each selected mailpiece to be re-directed at an angle relative to the stack of mailpieces to be accumulated in the sortation bin. The divert assembly also including a stacking assembly including a Leading Edge (LE) urge roller, a support blade, and a Trailing Edge (TE) alignment device. The LE urge roller accepts and urges each of the selected mailpieces toward a sidewall of the sortation bin while the support blade holds each of the selected mailpieces between the urge roller and the support blade and in an on-edge parallel relationship relative thereto. The support blade is moveably mounted relative to the LE urge roller to allow the accumulation of additional mailpieces between the LE urge roller and the support blade.Type: ApplicationFiled: October 24, 2012Publication date: April 24, 2014Applicant: PITNEY BOWES INC.Inventors: Robert J. Allen, Thomas M. Lyga, David Purcell, Brad A. Swinford
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Publication number: 20140110313Abstract: A stacking assembly is operative to protect stacked mailpieces from damage due to abrasion. The stacking assembly includes a support blade moveably mounted to a bin for accepting a stack of mailpieces and an ingestion assembly including a Leading Edge (LE) urge roller and Trailing Edge (TE) alignment device. The LE urge roller is operative to accept mailpieces from a supply of mailpieces, and urge a leading edge portion thereof toward a sidewall of the stacking bin. The TE alignment device includes a first cam driven about an axis of rotation by a digital rotary positioning device which cam defines a surface operative to urge the trailing edge portion of each mailpiece into parallel alignment with the support blade. The stacking assembly also includes an anti-abrasion linkage responsive to rotation of the digital rotary positioning device to forcibly displace a surface of the stacked mailpieces away from a moving surface of the ingestion assembly.Type: ApplicationFiled: October 24, 2012Publication date: April 24, 2014Applicant: Pitney Bowes, Inc.Inventors: Robert J. Allen, Thomas M. Lyga, David Purcell, Brad A. Swinford
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Patent number: D686882Type: GrantFiled: July 25, 2012Date of Patent: July 30, 2013Assignee: Wilton Industries, Inc.Inventors: Jeffrey Chiu, David Starr, David Purcell, Stephen Melamed, Luc Heiligenstein