Patents Assigned to Press-Seal Corporation
  • Patent number: 11578825
    Abstract: A seal assembly is configured for use at PVCO pipe junctions. The seal assembly includes a main seal body made of a monolithic resilient material, such as rubber, and a stiffener. The seal has a stiffener pocket sized and configured to accept the stiffener, such that the stiffener can be assembled to the seal body by hand. This assembly can then be installed into the bell end of a first PVCO pipe, and a spigot end of a second PVCO pipe may then be inserted into the bell end and engaged with a main sealing lobe of the seal assembly. The seal assembly is configured to reliably withstand the insertion process, without damage or degradation to the sealing structures. Once installed, the seal assembly provides a robust fluid-tight seal along all potential leak paths between the seal assembly and the first and second pipes.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: February 14, 2023
    Assignee: Press-Seal Corporation
    Inventors: Peter J. Skinner, Jimmy D. Gamble, Jacob L. B. Morris
  • Publication number: 20200347966
    Abstract: A seal assembly is configured for use at PVCO pipe junctions. The seal assembly includes a main seal body made of a monolithic resilient material, such as rubber, and a stiffener. The seal has a stiffener pocket sized and configured to accept the stiffener, such that the stiffener can be assembled to the seal body by hand. This assembly can then be installed into the bell end of a first PVCO pipe, and a spigot end of a second PVCO pipe may then be inserted into the bell end and engaged with a main sealing lobe of the seal assembly. The seal assembly is configured to reliably withstand the insertion process, without damage or degradation to the sealing structures. Once installed, the seal assembly provides a robust fluid-tight seal along all potential leak paths between the seal assembly and the first and second pipes.
    Type: Application
    Filed: April 21, 2020
    Publication date: November 5, 2020
    Applicant: Press-Seal Corporation
    Inventors: Peter J. Skinner, Jimmy D. Gamble, Jacob L. B. Morris
  • Patent number: 10786927
    Abstract: A hole former for use in casting a gasket within an opening of a structure of the type used in underground water systems, such as a manhole. The hole former includes a body defining a central axis and an outer peripheral surface, with at least one gasket retention element projecting radially outwardly from the outer peripheral surface to interface with a corresponding locating feature of the gasket. In this manner, axial shifting or movement of the gasket with respect to the hole former is restricted, thereby positively locating and retaining the gasket on the hole former before and during the casting process. The hole former may have a compound curvature, with the gasket retained around the periphery of the hole former in a compound curved configuration.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: September 29, 2020
    Assignee: Press-Seal Corporation
    Inventors: Jimmy D. Gamble, David Allen Krueckeberg
  • Patent number: 10563805
    Abstract: A sealing assembly has an expansion band having an arcuate band portion and a pair of threaded end portions formed at opposing ends of the arcuate band, in which the arcuate band and threaded end portions are monolithically formed as a single piece. Fixed within respective threaded end portions are a pair of oppositely threaded nuts adapted to receive a bolt having correspondingly oppositely threaded ends. Rotation of the bolt causes the threaded end portions to be simultaneously driven apart or drawn toward one another (depending on the rotation direction of the bolt) to thereby expand or contract the overall outer profile of the arcuate band portion. The monolithically formed expansion band may be made of an inexpensive, non-rusting material such as nylon 66, and glass fibers and/or additives may be employed to impart strength and flexibility.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: February 18, 2020
    Assignee: Press-Seal Corporation
    Inventors: James W. Skinner, Graham E. Blackwood, Katherine A. Bergfeld, Michael R. Miller, John R. Kaczmarczyk
  • Publication number: 20190345675
    Abstract: A vibration dampening boot for railway tie blocks and a method of manufacturing railway tie block assemblies. The boot includes a bottom wall with resilient tie block contact structures disposed at different heights for initial tie block support and variable vibration dampening. The upper portion of the boot terminates in a removable wall connected to the side walls of the boot by a relatively thin tear strip to enable direct pouring of cast material, such as concrete or epoxy, into the boot for casting the tie block, with the wall removable after installation of the tie block assembly into a railway bed. In this manner, the boot may be used with pre-cast tie blocks as well as accommodate direct casting of the tie blocks within the boot to form a tie block assembly.
    Type: Application
    Filed: May 10, 2019
    Publication date: November 14, 2019
    Applicant: Press-Seal Corporation
    Inventors: Jimmy D. Gamble, Robert R. Slocum
  • Patent number: 10428512
    Abstract: A manhole base assembly and a method for making the same employ a non-cylindrical, low-volume concrete base that is fully lined to protect the concrete against chemical and physical attack while in service. This lined concrete manhole base assembly may be readily produced using a modular manhole form assembly which can be configured for a wide variety of geometrical configurations compatible with, e.g., varying pipe angles, elevations and sizes. The form assembly is configurable to provide any desired angle and elevation for the pipe apertures to interface with various underground systems, and can be formed on-site to facilitate compatibility with existing structures. The assembly provides for flexible, modular construction of a wide variety of lined manhole base assemblies at minimal cost, reduced concrete consumption and reduced operational complexity. The modular nature of the production form assembly also facilitates reduced inventory requirements when various manhole base assembly geometries are needed.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: October 1, 2019
    Assignee: Press-Seal Corporation
    Inventors: James W. Skinner, Jimmy D. Gamble, Robert R. Slocum, John D. Kaczmarczyk, John M. Kurdziel
  • Publication number: 20190145091
    Abstract: A manhole base assembly and a method for making the same employ a non-cylindrical, low-volume concrete base that is fully lined to protect the concrete against chemical and physical attack while in service. This lined concrete manhole base assembly may be readily produced using a modular manhole form assembly which can be configured for a wide variety of geometrical configurations compatible with, e.g., varying pipe angles, elevations and sizes. The form assembly is configurable to provide any desired angle and elevation for the pipe apertures to interface with various underground systems, and can be formed on-site to facilitate compatibility with existing structures. The assembly provides for flexible, modular construction of a wide variety of lined manhole base assemblies at minimal cost, reduced concrete consumption and reduced operational complexity. The modular nature of the production form assembly also facilitates reduced inventory requirements when various manhole base assembly geometries are needed.
    Type: Application
    Filed: January 10, 2019
    Publication date: May 16, 2019
    Applicant: Press-Seal Corporation
    Inventors: James W. Skinner, Jimmy D. Gamble, Robert R. Slocum, John D. Kaczmarczyk, John M. Kurdziel
  • Patent number: 10214893
    Abstract: A manhole base assembly and a method for making the same employ a non-cylindrical, low-volume concrete base that is fully lined to protect the concrete against chemical and physical attack while in service. This lined concrete manhole base assembly may be readily produced using a modular manhole form assembly which can be configured for a wide variety of geometrical configurations compatible with, e.g., varying pipe angles, elevations and sizes. The form assembly is configurable to provide any desired angle and elevation for the pipe apertures to interface with various underground systems, and can be formed on-site to facilitate compatibility with existing structures. The assembly provides for flexible, modular construction of a wide variety of lined manhole base assemblies at minimal cost, reduced concrete consumption and reduced operational complexity. The modular nature of the production form assembly also facilitates reduced inventory requirements when various manhole base assembly geometries are needed.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: February 26, 2019
    Assignee: Press-Seal Corporation
    Inventors: James W. Skinner, Jimmy D. Gamble, Robert R. Slocum, John M. Kaczmarczyk, John M. Kurdziel
  • Publication number: 20180236688
    Abstract: A hole former for use in casting a gasket within an opening of a structure of the type used in underground water systems, such as a manhole. The hole former includes a body defining a central axis and an outer peripheral surface, with at least one gasket retention element projecting radially outwardly from the outer peripheral surface to interface with a corresponding locating feature of the gasket. In this manner, axial shifting or movement of the gasket with respect to the hole former is restricted, thereby positively locating and retaining the gasket on the hole former before and during the casting process. The hole former may have a compound curvature, with the gasket retained around the periphery of the hole former in a compound curved configuration.
    Type: Application
    Filed: February 13, 2018
    Publication date: August 23, 2018
    Applicant: Press-Seal Corporation
    Inventors: Jimmy D. Gamble, David Allen Krueckeberg
  • Patent number: 10053850
    Abstract: A manhole base assembly and a method for making the same, in which a non-cylindrical, low-volume concrete base is fully lined to protect the concrete against chemical and physical attack while in service. This lined concrete manhole base assembly may be readily produced using a modular manhole form assembly which can be configured for a wide variety of geometrical configurations compatible with, e.g., varying pipe angles, elevations and sizes. The form assembly is configurable to provide any desired angle and elevation for the pipe apertures using existing, standard sets of form assembly materials, and may also be used in conjunction with industry-standard cylindrical casting jackets for compatibility with existing casting operations. The resulting system provides for flexible construction of a wide variety of lined manhole base assemblies at minimal cost, reduced concrete consumption and reduced operational complexity.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: August 21, 2018
    Assignee: Press-Seal Corporation
    Inventors: James W. Skinner, Jimmy D. Gamble, Robert R. Slocum, John M. Kaczmarczyk
  • Patent number: 9803784
    Abstract: A gasket is adapted for sealing a joint between bell and spigot ends of corrugated pipes. The gasket generally includes a pair of seal lobes which provide a redundant double seal, together with an anchoring portion sized to be received in a trough defined by the pipe corrugation and at least one anti-roll lip adapted to engage the anchoring corrugation.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: October 31, 2017
    Assignee: Press-Seal Corporation
    Inventors: Jimmy Dean Gamble, Robert Ryan Slocum
  • Patent number: 9644768
    Abstract: A sealing assembly has an expansion band having an arcuate band portion and a pair of threaded end portions formed at opposing ends of the arcuate band, in which the arcuate band and threaded end portions are monolithically formed as a single piece. Fixed within respective threaded end portions are a pair of oppositely threaded nuts adapted to receive a bolt having correspondingly oppositely threaded ends. Rotation of the bolt causes the threaded end portions to be simultaneously driven apart or drawn toward one another (depending on the rotation direction of the bolt) to thereby expand or contract the overall outer profile of the arcuate band portion. The monolithically formed expansion band may be made of an inexpensive, non-rusting material such as nylon 66, and glass fibers and/or additives may be employed to impart strength and flexibility.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: May 9, 2017
    Assignee: PRESS-SEAL CORPORATION
    Inventors: James W. Skinner, Graham E. Blackwood, Katherine A. Bergfeld, Michael R. Miller, John M. Kaczmarczyk
  • Patent number: 9617722
    Abstract: A manhole base assembly and a method for making the same, in which a non-cylindrical, low-volume concrete base is fully lined to protect the concrete against chemical and physical attack while in service. This lined concrete manhole base assembly may be readily produced using a modular manhole form assembly which can be configured for a wide variety of geometrical configurations compatible with, e.g., varying pipe angles, elevations and sizes. The form assembly is configurable to provide any desired angle and elevation for the pipe apertures using existing, standard sets of form assembly materials, and may also be used in conjunction with industry-standard cylindrical casting jackets for compatibility with existing casting operations. The resulting system provides for flexible construction of a wide variety of lined manhole base assemblies at minimal cost, reduced concrete consumption and reduced operational complexity.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: April 11, 2017
    Assignee: Press-Seal Corporation
    Inventors: James W. Skinner, Jimmy D. Gamble, Robert R. Slocum, John M. Kaczmarczyk
  • Patent number: D813661
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: March 27, 2018
    Assignee: Press-Seal Corporation
    Inventors: Graham E. Blackwood, Katherine A. Bergfeld, Michael R. Miller, John M. Kaczmarczyk, James W. Skinner
  • Patent number: D814285
    Type: Grant
    Filed: October 15, 2015
    Date of Patent: April 3, 2018
    Assignee: Press-Seal Corporation
    Inventors: Graham E. Blackwood, Katherine A. Bergfeld, Michael R. Miller, John M. Kaczmarczyk, James W. Skinner