Patents by Inventor David L. Snodgrass

David L. Snodgrass 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).

  • Patent number: 11903537
    Abstract: A wireless dispenser beacon module for a product dispenser comprises a bottle presence trigger configured to detect one of presence or absence of a product bottle in the product dispenser; an actuation sensor configured to detect actuation of the product dispenser; and a module controller configured to wirelessly transmit dispenser data indicative of the detected one of presence or absence of the product bottle in the product dispenser associated with each detected actuation of the product dispenser.
    Type: Grant
    Filed: January 19, 2022
    Date of Patent: February 20, 2024
    Assignee: Ecolab USA Inc.
    Inventors: Jeffrey Rospierski, David L. Snodgrass, Andrew M. Schultz, Viktor Slobodyan, Cheryl A. Littau, Kenneth T. Dobizl
  • Patent number: 11711745
    Abstract: In an adaptive route wireless network and bi-directional protocol, each computing device along a route to a gateway appends the previous node's network address to downstream messages as they are transmitted along the route from an originating computing device to the gateway. The list of appended network addresses thus records the route taken by the downstream network message through the adaptive route network. A server computing device maintains a route table including the list of appended network addresses received with each downstream message. To send unsolicited upstream messages to any computing device on the wireless network, the server generates an upstream network message that includes the appended network address(es) from the portion of the route table corresponding to the destination computing device. The upstream route to the destination computing device is thus contained in the list of appended network addresses within the network message.
    Type: Grant
    Filed: March 10, 2022
    Date of Patent: July 25, 2023
    Assignee: Ecolab USA Inc.
    Inventor: David L. Snodgrass
  • Publication number: 20220358300
    Abstract: A zone antenna system includes a zone antenna mat including a substantially planar zone antenna and a zone beacon unit configured to establish a detection zone and detect presence of an electronic tag in the detection zone. The zone antenna system may form part of a compliance monitoring system in which presence of the electronic tag the detection zone is part of a monitored process. The zone antenna system establishes a detection zone, detects entry of one or more electronic tags into the detection zone, and stores and/or wirelessly transmits entry event data corresponding to one or more detected entry events for receipt by a remote or local computing device.
    Type: Application
    Filed: May 6, 2022
    Publication date: November 10, 2022
    Inventor: David L. Snodgrass
  • Publication number: 20220201590
    Abstract: In an adaptive route wireless network and bi-directional protocol, each computing device along a route to a gateway appends the previous node's network address to downstream messages as they are transmitted along the route from an originating computing device to the gateway. The list of appended network addresses thus records the route taken by the downstream network message through the adaptive route network. A server computing device maintains a route table including the list of appended network addresses received with each downstream message. To send unsolicited upstream messages to any computing device on the wireless network, the server generates an upstream network message that includes the appended network address(es) from the portion of the route table corresponding to the destination computing device. The upstream route to the destination computing device is thus contained in the list of appended network addresses within the network message.
    Type: Application
    Filed: March 10, 2022
    Publication date: June 23, 2022
    Inventor: David L. Snodgrass
  • Publication number: 20220142415
    Abstract: A wireless dispenser beacon module for a product dispenser comprises a bottle presence trigger configured to detect one of presence or absence of a product bottle in the product dispenser; an actuation sensor configured to detect actuation of the product dispenser; and a module controller configured to wirelessly transmit dispenser data indicative of the detected one of presence or absence of the product bottle in the product dispenser associated with each detected actuation of the product dispenser.
    Type: Application
    Filed: January 19, 2022
    Publication date: May 12, 2022
    Inventors: Jeffrey Rospierski, David L. Snodgrass, Andrew M. Schultz, Viktor Slobodyan, Cheryl A. Littau, Kenneth T. Dobizi
  • Patent number: 11284333
    Abstract: In an adaptive route wireless network and bi-directional protocol, each computing device along a route to a gateway appends the previous node's network address to downstream messages as they are transmitted along the route from an originating computing device to the gateway. The list of appended network addresses thus records the route taken by the downstream network message through the adaptive route network. A server computing device maintains a route table including the list of appended network addresses received with each downstream message. To send unsolicited upstream messages to any computing device on the wireless network, the server generates an upstream network message that includes the appended network address(es) from the portion of the route table corresponding to the destination computing device. The upstream route to the destination computing device is thus contained in the list of appended network addresses within the network message.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: March 22, 2022
    Assignee: Ecolab USA Inc.
    Inventor: David L. Snodgrass
  • Patent number: 11272815
    Abstract: Monitoring modules for hand hygiene product dispensers may be installed in existing manual or touch free hand hygiene product dispensers to provide wireless communication of dispenser data to or from a dispenser. In one example, a manual dispenser beacon module is configured to be used with a manually actuated hand hygiene product dispenser to monitor hand hygiene compliance events (such as dispense events) associated with the dispenser, and to wirelessly transmit dispenser data to or from the manual dispenser. In another example, a touch free dispenser beacon module is configured to be used with a touch free hand hygiene product dispenser to monitor hand hygiene compliance events (such as dispense events) associated with the dispenser, and to wirelessly transmit dispenser data to or from the touch free dispenser.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: March 15, 2022
    Assignee: Ecolab USA Inc.
    Inventors: Jeffrey Rospierski, David L. Snodgrass, Andrew M. Schultz, Viktor Slobodyan, Cheryl A. Littau, Kenneth T. Dobizl
  • Publication number: 20200205055
    Abstract: In an adaptive route wireless network and bi-directional protocol, each computing device along a route to a gateway appends the previous node's network address to downstream messages as they are transmitted along the route from an originating computing device to the gateway. The list of appended network addresses thus records the route taken by the downstream network message through the adaptive route network. A server computing device maintains a route table including the list of appended network addresses received with each downstream message. To send unsolicited upstream messages to any computing device on the wireless network, the server generates an upstream network message that includes the appended network address(es) from the portion of the route table corresponding to the destination computing device. The upstream route to the destination computing device is thus contained in the list of appended network addresses within the network message.
    Type: Application
    Filed: December 20, 2019
    Publication date: June 25, 2020
    Inventor: David L. Snodgrass
  • Publication number: 20180255981
    Abstract: Monitoring modules for hand hygiene product dispensers may be installed in existing manual or touch free hand hygiene product dispensers to provide wireless communication of dispenser data to or from a dispenser. In one example, a manual dispenser beacon module is configured to be used with a manually actuated hand hygiene product dispenser to monitor hand hygiene compliance events (such as dispense events) associated with the dispenser, and to wirelessly transmit dispenser data to or from the manual dispenser. In another example, a touch free dispenser beacon module is configured to be used with a touch free hand hygiene product dispenser to monitor hand hygiene compliance events (such as dispense events) associated with the dispenser, and to wirelessly transmit dispenser data to or from the touch free dispenser.
    Type: Application
    Filed: March 6, 2018
    Publication date: September 13, 2018
    Inventors: Jeffrey Rospierski, David L. Snodgrass, Andrew M. Schultz, Viktor Slobodyan, Cheryl A. Littau, Kenneth T. Dobizl
  • Patent number: 8783511
    Abstract: A convertible fluid dispenser for dispensing personal care hygiene products has a chassis adapted to accept either a manual actuating unit or an automatic actuating unit, for upgrading or maintenance.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: July 22, 2014
    Assignee: UltraClenz, LLC
    Inventor: David L. Snodgrass
  • Patent number: 8564431
    Abstract: A monitoring and communication system for sanitizer compliance monitoring, comprises a plurality of sanitizer monitoring sensors for collecting sanitize compliance data at a respective plurality of sanitizer stations, each sensor located to monitor whether a person passing through a portal has undergone a sanitization procedure, at least one hub which wirelessly receives sanitizer compliance data transmitted from said plurality of sanitizer monitoring stations, a gateway which wirelessly receives sanitizer compliance data transmitted from the hub, and a wireless cellular telephone link for transmitting the sanitizer compliance data from the gateway to a central monitoring station.
    Type: Grant
    Filed: January 7, 2010
    Date of Patent: October 22, 2013
    Assignee: UltraClenz, LLC
    Inventor: David L. Snodgrass
  • Patent number: 8342365
    Abstract: An automatic touch-free dispenser provides dose dispensing of a product from a pressurized can by sensing or detecting the presence of a user's hands, and an actuator assembly which tilts the nozzle on the can in response to such detection, to thereby dispense product from the can. The can may hold a healthcare product, such as a sanitizer, food product, or any other fluid product pressurized in a can. The actuator assembly includes a DC motor which drives a cam, which in turn pushes an actuator lever into the nozzle for a certain dispensing time. The number of doses, detection range, and motor speed, can be adjusted.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: January 1, 2013
    Assignee: Ultraclenz, LLC
    Inventor: David L. Snodgrass
  • Publication number: 20120329438
    Abstract: A communication system for handwash compliance monitoring, comprises a plurality of handwash monitoring sensors for collecting handwash compliance data at a respective plurality of handwash stations, at least one hub which wirelessly receives handwash compliance data transmitted from said plurality of handwash monitoring stations, a gateway which wirelessly receives handwash compliance data transmitted from the hub, and a wireless cellular telephone link for transmitting the handwash compliance data from the gateway to a central monitoring station.
    Type: Application
    Filed: September 10, 2012
    Publication date: December 27, 2012
    Applicant: ULTRACLENZ, LLC
    Inventor: David L. Snodgrass
  • Patent number: 8264343
    Abstract: A communication system for handwash compliance monitoring, comprises a plurality of handwash monitoring sensors for collecting handwash compliance data at a respective plurality of handwash stations, at least one hub which wirelessly receives handwash compliance data transmitted from said plurality of handwash monitoring stations, a gateway which wirelessly receives handwash compliance data transmitted from the hub, and a wireless cellular telephone link for transmitting the handwash compliance data from the gateway to a central monitoring station.
    Type: Grant
    Filed: September 15, 2009
    Date of Patent: September 11, 2012
    Assignee: Ultraclenz, LLC
    Inventor: David L. Snodgrass
  • Patent number: 8056768
    Abstract: A foam pump assembly for dispensing foam comprises a dual piston pump engine having an air cylinder and fluid cylinder each with pistons, a mixing chamber in communication with the liquid cylinder for receiving liquid, and in communication with the air cylinder for receiving air, an outlet chamber providing a flow path with turns, whereby when air and fluid is fed into said mixing chamber foam is created which passes into the outlet chamber, through the flow path and out of the pump outlet.
    Type: Grant
    Filed: December 28, 2007
    Date of Patent: November 15, 2011
    Inventor: David L. Snodgrass
  • Publication number: 20110273298
    Abstract: Method and apparatus for monitoring and reporting hand washing at a sanitizing station employs a sensor for signaling the dispensation of a sanitizing agent from a dispenser and setting a clear signal to permit passage through a portal, such as an entrance to a room. The module in turn includes an input element, an output element, a processor, and memory. The module operates in person and administrator modes. In the person mode, the module responds to an input signaling that a person has dispensed sufficient sanitizer to mitigate the spread of germs from care giver/health care worker to patient. The person activates the sanitizer to dispense the sanitizer liquid or foam and that action signals that the cleaning agent has been dispensed and turns on the entrance permitted light. If the dispenser is not activated or the amount of sanitizer dispensed is not adequate to sanitize the person's hands, a sensor positioned at the entrance of the door alarms.
    Type: Application
    Filed: January 7, 2010
    Publication date: November 10, 2011
    Inventors: David L. Snodgrass, Joel S. Douglas
  • Patent number: 8020733
    Abstract: A dispensing system for dispensing cleaning product for hand washing at a faucet comprises a cartridge having an internal reservoir for containing hand wash cleaning product, a nozzle configured in one of a plurality of key shapes, and a dispenser having a receptacle opening adapted to receive and engage the nozzle of the cartridge when the receptacle opening is configured in one of a plurality of key shapes corresponding to the key shape of the nozzle, the dispenser having a fluid communication passage for dispensing fluid for hand washing, whereby only cartridges and dispensers which have matched key shapes will engage each other for operative discharge of the hand wash cleaning product.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: September 20, 2011
    Assignee: UltraClenz, LLC
    Inventor: David L. Snodgrass
  • Publication number: 20110163870
    Abstract: A monitoring and communication system for sanitizer compliance monitoring, comprises a plurality of sanitizer monitoring sensors for collecting sanitize compliance data at a respective plurality of sanitizer stations, each sensor located to monitor whether a person passing through a portal has undergone a sanitization procedure, at least one hub which wirelessly receives sanitizer compliance data transmitted from said plurality of sanitizer monitoring stations, a gateway which wirelessly receives sanitizer compliance data transmitted from the hub, and a wireless cellular telephone link for transmitting the sanitizer compliance data from the gateway to a central monitoring station.
    Type: Application
    Filed: January 7, 2010
    Publication date: July 7, 2011
    Inventor: David L. Snodgrass
  • Publication number: 20110063106
    Abstract: A communication system for handwash compliance monitoring, comprises a plurality of handwash monitoring sensors for collecting handwash compliance data at a respective plurality of handwash stations, at least one hub which wirelessly receives handwash compliance data transmitted from said plurality of handwash monitoring stations, a gateway which wirelessly receives handwash compliance data transmitted from the hub, and a wireless cellular telephone link for transmitting the handwash compliance data from the gateway to a central monitoring station.
    Type: Application
    Filed: September 15, 2009
    Publication date: March 17, 2011
    Applicant: ULTRACLENZ, LLC
    Inventor: David L. Snodgrass
  • Publication number: 20100308076
    Abstract: An automatic touch-free dispenser provides dose dispensing of a product from a pressurized can by sensing or detecting the presence of a user's hands, and an actuator assembly which tilts the nozzle on the can in response to such detection, to thereby dispense product from the can. The can may hold a healthcare product, such as a sanitizer, food product, or any other fluid product pressurized in a can. The actuator assembly includes a DC motor which drives a cam, which in turn pushes an actuator lever into the nozzle for a certain dispensing time. The number of doses, detection range, and motor speed, can be adjusted.
    Type: Application
    Filed: June 8, 2009
    Publication date: December 9, 2010
    Inventor: David L. Snodgrass