Patents Assigned to PF WaterWorks LP
  • Publication number: 20240133168
    Abstract: A drain stopper and/or strainer comprises a stem, a cap preferably detachably attached to an upper end of the stem, a bristle strainer sleeve having a plurality of bristles removably received on the stem, and retaining means preferably detachably attached to the lower end of the stem for holding the bristle strainer sleeve on the stem. Retaining means include a two-prong fork that engages a pivot or ball rod between the forks, a plate having one or more holes for receiving a pivot or ball rod and an object that does not connect to anything other than the stem. A cap seal is included for stopper and strainer functionality and is omitted for strainer-only functionality. The bristle strainer sleeve may be designed to engage an inside wall of a drain pipe for holding the stopper and/or strainer in a desired position.
    Type: Application
    Filed: October 23, 2022
    Publication date: April 25, 2024
    Applicant: PF Waterworks LP
    Inventor: Sanjay Ahuja
  • Patent number: 11788266
    Abstract: A conventional bathroom sink has an overflow port and an overflow conduit. A conventional drain pipe for the conventional sink has overflow ports in fluid communication with the sink's overflow port. A vessel sink does not have an overflow port. A prior art drain pipe that does not have overflow ports has been used with vessel sinks. The present invention provides a new drain pipe with overflow ports for a conventional sink and means for covering and sealing the overflow ports in the new drain pipe so that the new drain pipe can also be used with a vessel sink that does not have an overflow port. Means for covering and sealing the overflow ports include an inner sleeve that fits inside the drain pipe, an outer sleeve that surrounds the drain pipe and grommets and hole plugs that that fit inside the overflow ports, where all of the means cover and seal the overflow ports so that the new drain pipe does not leak when used with a vessel sink that does not have an overflow port.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: October 17, 2023
    Assignee: PF Waterworks LP
    Inventors: Sanjay Ahuja, Harold Kent Beck
  • Publication number: 20230279650
    Abstract: A conventional bathroom sink has an overflow port and an overflow conduit. A conventional drain pipe for the conventional sink has overflow ports in fluid communication with the sink's overflow port. A vessel sink does not have an overflow port. A prior art drain pipe that does not have overflow ports has been used with vessel sinks. The present invention provides a new drain pipe with overflow ports for a conventional sink and means for covering and sealing the overflow ports in the new drain pipe so that the new drain pipe can also be used with a vessel sink that does not have an overflow port. Means for covering and sealing the overflow ports include an inner sleeve that fits inside the drain pipe, an outer sleeve that surrounds the drain pipe and grommets and hole plugs that that fit inside the overflow ports, where all of the means cover and seal the overflow ports so that the new drain pipe does not leak when used with a vessel sink that does not have an overflow port.
    Type: Application
    Filed: May 12, 2023
    Publication date: September 7, 2023
    Applicant: PF Waterworks LP
    Inventors: Sanjay Ahuja, Harold Kent Beck
  • Patent number: 11702829
    Abstract: A method is provided for a plumbing parts supplier to reduce inventory of sink drain assemblies. Drain assemblies for overflow-type sinks have an overflow port, while drain assemblies for vessel sinks do not. Some drain assemblies have open and closed positions, while a grid drain or an umbrella drain does not. A drain assembly may be available in different finishes. Rather than having an inventory of drain assemblies for all possible applications, kits are provided that allow an end-user to assemble one of two or more drain assemblies. One kit includes a drain assembly for an overflow-type sink and a sleeve that fits in the drain assembly and covers an overflow port. Other kits include a drain assembly with a push-type open-close mechanism and means for keeping the drain assembly in the open position. Another kit includes a push-button drain assembly with an overflow port, means for converting it an umbrella drain and a sleeve for covering the overflow port.
    Type: Grant
    Filed: January 5, 2021
    Date of Patent: July 18, 2023
    Assignee: PF Waterworks LP
    Inventors: Sanjay Ahuja, Harold Kent Beck
  • Patent number: 11680397
    Abstract: A drain stopper and strainer for a kitchen sink has a cap, a cap seal, an open-close mechanism, a strainer connected to a lower end of the open-close mechanism with an easy-connect mechanism, and an annular seal engaged with the strainer that seals an annular space between the strainer and a drain fitting. The cap seal preferably seals against the strainer. The stopper/strainer can be pushed into and pulled out of the drain fitting without assembly or disassembly. The strainer can be easily disconnected for cleaning and can be easily reconnected afterwards. For a drain fitted with a garbage disposal unit, the strainer has a hub-and-spoke structure for preventing eating and cooking utensils from falling into the garbage disposal unit.
    Type: Grant
    Filed: June 23, 2021
    Date of Patent: June 20, 2023
    Assignee: PF Waterworks LP
    Inventor: Sanjay Ahuja
  • Publication number: 20230160189
    Abstract: The present invention provides a ball rod assembly for a pop-up drain assembly that comprises a ball rod having a ball, a hollow stub adapter, a first gasket received on the rod on one side of the ball and a second gasket and a hollow nut received on the rod on the other side of the ball and engaged with the stub adapter to provide a single-piece, unitary ball rod assembly that can be installed in a pop-up drain assembly by engaging the stub adapter with a stub on a drain pipe with one end of the ball rod engaged with a drain stopper.
    Type: Application
    Filed: November 18, 2022
    Publication date: May 25, 2023
    Applicant: PF Waterworks LP
    Inventor: Sanjay Ahuja
  • Publication number: 20230078534
    Abstract: A drain stopper includes a cap, a seal and a strainer engaged with the cap, and a gripping element engaged with the strainer. The gripping element is resilient and has a generally tubular shape with longitudinal notches, which give it a segmented annular shape. A person grips and squeezes the gripping element to insert the stopper/strainer into a drain pipe, after which the gripping element expands and grips an inside wall of the drain pipe. The person pushes downwardly on the cap to place the stopper/strainer in a closed position and pulls up on the cap for an open position.
    Type: Application
    Filed: November 17, 2022
    Publication date: March 16, 2023
    Applicant: PF Waterworks LP
    Inventors: Sanjay Ahuja, Harold Kent Beck
  • Patent number: 11517155
    Abstract: A drain flange cover is provided for covering and hiding a drain flange in a sink or bathtub, which includes a drain cap and which may or may not include a longitudinal shaft and/or a strainer. The longitudinal shaft can be a perforated tube that serves as a strainer. Strainers can be cylindrical, regular-funnel shaped and inverted-funnel shaped. A drain stopper includes an open-close mechanism, a strainer and a drain flange cover. A drain stopper with a push-push mechanism can rest on a cross-member in a drain pipe, allowing easy removal to clean the strainer.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: December 6, 2022
    Assignee: PF Waterworks LP
    Inventors: Sanjay Ahuja, Harold Kent Beck
  • Patent number: 11519161
    Abstract: A drain stopper includes a cap, a seal and a strainer engaged with the cap, and a gripping element engaged with the strainer. The gripping element is resilient and has a generally tubular shape with longitudinal notches, which give it a segmented annular shape. A person grips and squeezes the gripping element to insert the stopper/strainer into a drain pipe, after which the gripping element expands and grips an inside wall of the drain pipe. The person pushes downwardly on the cap to place the stopper/strainer in a closed position and pulls up on the cap for an open position. Another drain stopper includes a cap, a seal, a push-push mechanism, a strainer engaged with the mechanism, and a flange or prongs that rest on a drain flange for holding and supporting the drain stopper.
    Type: Grant
    Filed: September 2, 2019
    Date of Patent: December 6, 2022
    Assignee: PF Waterworks LP
    Inventors: Sanjay Ahuja, Harold Kent Beck
  • Publication number: 20220282466
    Abstract: A bathtub overflow assembly comprises a holder and a faceplate that attaches to the holder using a snap-fit or threaded connection. The holder has rectangular shape, a length greater than the diameter of a bathtub overflow port and pass-through screw holes for attachment to an overflow fitting. The holder has a pair of posts that project from an outer surface, and each post has a shoulder near a distal end for the snap-fit connection. The faceplate has walls that project from an inner surface, and the walls have openings for receiving the shoulders for the snap-fit connection. The holder is attached to the overflow fitting using one or more screws, and the faceplate is pressed into engagement with the holder for the snap-fit connection. For the threaded connection, the holder has a central threaded tube, and the faceplate has a threaded element that engages the tube by rotating the faceplate.
    Type: Application
    Filed: March 4, 2022
    Publication date: September 8, 2022
    Applicant: PF Waterworks LP
    Inventor: Sanjay Ahuja
  • Publication number: 20220074178
    Abstract: A conventional bathroom sink has an overflow port and an overflow conduit. A conventional drain pipe for the conventional sink has overflow ports in fluid communication with the sink's overflow port. A vessel sink does not have an overflow port. A prior art drain pipe that does not have overflow ports has been used with vessel sinks. The present invention provides a new drain pipe with overflow ports for a conventional sink and means for covering and sealing the overflow ports in the new drain pipe so that the new drain pipe can also be used with a vessel sink that does not have an overflow port. Means for covering and sealing the overflow ports include an inner sleeve that fits inside the drain pipe, an outer sleeve that surrounds the drain pipe and grommets and hole plugs that that fit inside the overflow ports, where all of the means cover and seal the overflow ports so that the new drain pipe does not leak when used with a vessel sink that does not have an overflow port.
    Type: Application
    Filed: November 15, 2021
    Publication date: March 10, 2022
    Applicant: PF Waterworks LP
    Inventors: Sanjay Ahuja, Harold Kent Beck
  • Publication number: 20220042292
    Abstract: A drain stopper assembly that can be simply pushed into and pulled out of a drain pipe includes an open-close mechanism, a cap, a drain seal, and a means for engaging the open-close mechanism with the drain pipe and preferably also includes a strainer. The means includes a wheel-shaped disc that rests on crossbars in the drain pipe and has an annular seal about its perimeter; a ball-and-spring detent mechanism for attaching the drain stopper to crossbars; and a magnet attached to the open-close mechanism, preferably with a ferrous adapter for the drain pipe. The open-close mechanism is a push mechanism, a lift-and-lock mechanism or a lift-and-turn mechanism.
    Type: Application
    Filed: October 20, 2021
    Publication date: February 10, 2022
    Applicant: PF Waterworks LP
    Inventors: Sanjay Ahuja, Harold Kent Beck
  • Publication number: 20210395986
    Abstract: A drain stopper and strainer for a kitchen sink has a cap, a cap seal, an open-close mechanism, a strainer connected to a lower end of the open-close mechanism with an easy-connect mechanism, and an annular seal engaged with the strainer that seals an annular space between the strainer and a drain fitting. The cap seal preferably seals against the strainer. The stopper/strainer can be pushed into and pulled out of the drain fitting without assembly or disassembly. The strainer can be easily disconnected for cleaning and can be easily reconnected afterwards. For a drain fitted with a garbage disposal unit, the strainer has a hub-and-spoke structure for preventing eating and cooking utensils from falling into the garbage disposal unit.
    Type: Application
    Filed: June 23, 2021
    Publication date: December 23, 2021
    Applicant: PF Waterworks LP
    Inventor: Sanjay Ahuja
  • Patent number: 11193261
    Abstract: A conventional bathroom sink has an overflow port and an overflow conduit. A conventional drain pipe for the conventional sink has overflow ports in fluid communication with the sink's overflow port. A vessel sink does not have an overflow port. A prior art drain pipe that does not have overflow ports has been used with vessel sinks. The present invention provides a new drain pipe with overflow ports for a conventional sink and means for covering and sealing the overflow ports in the new drain pipe so that the new drain pipe can also be used with a vessel sink that does not have an overflow port. Means for covering and sealing the overflow ports include an inner sleeve that fits inside the drain pipe, an outer sleeve that surrounds the drain pipe and grommets and hole plugs that that fit inside the overflow ports, where all of the means cover and seal the overflow ports so that the new drain pipe does not leak when used with a vessel sink that does not have an overflow port.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: December 7, 2021
    Assignee: PF Waterworks LP
    Inventors: Harold Kent Beck, Sanjay Ahuja
  • Patent number: 11162251
    Abstract: A bathtub drain stopper includes an open-close mechanism having threaded upper and lower ends, a cap, a seal, and means for anchoring the open-close mechanism in a drain pipe, where the length can be adjusted and fixed with a lock nut. A threaded anchor is provided for a tub shoe having a crossbar with a threaded opening. An anchor having prongs is provided for a tub shoe having a crossbar with no opening. A wheel-shaped anchor having an O-ring about its perimeter is provided for a drain that does not have a crossbar.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: November 2, 2021
    Assignee: PF Waterworks LP
    Inventors: Harold Kent Beck, Sanjay Ahuja
  • Publication number: 20210207351
    Abstract: A method is provided for a plumbing parts supplier to reduce inventory of sink drain assemblies. Drain assemblies for overflow-type sinks have an overflow port, while drain assemblies for vessel sinks do not. Some drain assemblies have open and closed positions, while a grid drain or an umbrella drain does not. A drain assembly may be available in different finishes. Rather than having an inventory of drain assemblies for all possible applications, kits are provided that allow an end-user to assemble one of two or more drain assemblies. One kit includes a drain assembly for an overflow-type sink and a sleeve that fits in the drain assembly and covers an overflow port. Other kits include a drain assembly with a push-type open-close mechanism and means for keeping the drain assembly in the open position. Another kit includes a push-button drain assembly with an overflow port, means for converting it an umbrella drain and a sleeve for covering the overflow port.
    Type: Application
    Filed: January 5, 2021
    Publication date: July 8, 2021
    Applicant: PF Waterworks LP
    Inventors: Sanjay Ahuja, Harold Kent Beck
  • Patent number: 11019965
    Abstract: A bathtub drain flange assembly includes a tubular drain flange fitting that has a radially-extending flange on an upper end and male threads on a lower end. A support structure in the lower end of the drain flange has an oversized or larger-than-normal opening, which is usually threaded. A reducing bushing is received in the opening and has a threaded bore that is one of a number of different sizes for receiving a plumbing device such as a drain stopper, a strainer or a drain cover. A bathtub drain flange kit includes a drain flange with a larger-than-maximum-standard size for an opening in the drain flange and two or more reducing bushings that fit properly in the opening and become fastened to the drain flange, where each of the reducing bushings provides a threaded bore that is a standard size for receiving a plumbing device.
    Type: Grant
    Filed: November 18, 2018
    Date of Patent: June 1, 2021
    Assignee: PF Waterworks LP
    Inventors: Harold Kent Beck, Sanjay Ahuja
  • Publication number: 20210071704
    Abstract: A cap for covering a bolt and its nut comprising a base and a cover. The base comprises a cylinder having a side wall and a circumferential groove or a flange on the side wall. Grabbers for a smaller-diameter bolt are on an inside surface of the side wall and extend inwardly and upwardly for engaging threads on the bolt as a pawl. Holders for a larger-diameter bolt are preferably also on the inside surface of the side wall and extend inwardly and upwardly and then bend into sections that extend along the length of the bolt and press against the bolt. The base is pushed onto and engaged with the bolt and covers the nut. The cover comprises an inverted cup having a mating circumferential flange or a groove for engaging the cover with the base. The cover hides the bolt.
    Type: Application
    Filed: September 11, 2020
    Publication date: March 11, 2021
    Applicant: PF Waterworks LP
    Inventors: Sanjay Ahuja, Dingyan Yu
  • Publication number: 20210002877
    Abstract: A conventional bathroom sink has an overflow port and an overflow conduit. A conventional drain pipe for the conventional sink has overflow ports in fluid communication with the sink's overflow port. A vessel sink does not have an overflow port. A prior art drain pipe that does not have overflow ports has been used with vessel sinks. The present invention provides a new drain pipe with overflow ports for a conventional sink and means for covering and sealing the overflow ports in the new drain pipe so that the new drain pipe can also be used with a vessel sink that does not have an overflow port. Means for covering and sealing the overflow ports include an inner sleeve that fits inside the drain pipe, an outer sleeve that surrounds the drain pipe and grommets and hole plugs that that fit inside the overflow ports, where all of the means cover and seal the overflow ports so that the new drain pipe does not leak when used with a vessel sink that does not have an overflow port.
    Type: Application
    Filed: September 21, 2020
    Publication date: January 7, 2021
    Applicant: PF Waterworks LP
    Inventors: Harold Kent Beck, Sanjay Ahuja
  • Patent number: D940836
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: January 11, 2022
    Assignee: PF Waterworks LP
    Inventors: Harold Kent Beck, Sanjay Ahuja