PIPE JOINT SEAL FOR POLYMER PIPING
    1.
    发明申请

    公开(公告)号:US20200347966A1

    公开(公告)日:2020-11-05

    申请号:US16854238

    申请日:2020-04-21

    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.

    Manhole base assembly with internal liner and method of manufacturing same

    公开(公告)号:US10053850B2

    公开(公告)日:2018-08-21

    申请号:US15440611

    申请日:2017-02-23

    CPC classification number: E03F5/027 B28B7/02 E02D29/125 E02D29/149 E03F5/021

    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. The modular nature of the production form assembly also facilitates reduced inventory requirements when various manhole base assembly geometries are needed.

    Hole former with gasket locating features for cast manhole structures

    公开(公告)号:US10786927B2

    公开(公告)日:2020-09-29

    申请号:US15895173

    申请日:2018-02-13

    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.

    MANHOLE BASE ASSEMBLY WITH INTERNAL LINER AND METHOD OF MANUFACTURING SAME

    公开(公告)号:US20170167127A1

    公开(公告)日:2017-06-15

    申请号:US15440611

    申请日:2017-02-23

    CPC classification number: E03F5/027 B28B7/02 E02D29/125 E02D29/149 E03F5/021

    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. The modular nature of the production form assembly also facilitates reduced inventory requirements when various manhole base assembly geometries are needed.

    Pipe joint seal for polymer piping

    公开(公告)号:US11578825B2

    公开(公告)日:2023-02-14

    申请号:US16854238

    申请日:2020-04-21

    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.

    Manhole base assembly with internal liner and method of manufacturing same

    公开(公告)号:US10428512B2

    公开(公告)日:2019-10-01

    申请号:US16244708

    申请日:2019-01-10

    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.

    Manhole base assembly with internal liner and method of manufacturing same

    公开(公告)号:US10214893B2

    公开(公告)日:2019-02-26

    申请号:US15605303

    申请日:2017-05-25

    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.

    HOLE FORMER WITH GASKET LOCATING FEATURES FOR CAST MANHOLE STRUCTURES

    公开(公告)号:US20180236688A1

    公开(公告)日:2018-08-23

    申请号:US15895173

    申请日:2018-02-13

    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.

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