Manhole base liner and method for manufacturing a manhole base liner
AssigneePredl GmbH
InventorManfred Predl
Life of this patent
Estimating the term…
Abstract
A manhole base liner (1), in particular for a wastewater manhole, has a base body (2) which comprises a tread surface (3) and at least one pipe connection opening (5). The base body (2) is produced in one piece from flexible material with a wall thickness, with which it can be bent together substantially arbitrarily in at least partial regions.
Claims25
A manhole base liner (1) having a base body (2) which has a tread surface (3) and at least one pipe connection opening (5), wherein the base body (2) is manufactured in one piece from flexible material with a wall thickness, with which it can be bent together at least in partial regions essentially arbitrarily.
A method for producing a formed part having a base body (2) and at least one pipe connection opening (5), comprising:
- a) creating a negative form (27) of the formed part,
- b) at least regionally wrapping the negative form (27) with a flexible film (36), and
- c) creating the base body (2) by molding a material in a liquid or pasty state on the negative form (27).
A method for lining a manhole, wherein the manhole has an inner wall, a base and an entrance opening, and wherein at least one pipe opens into the manhole, comprising:
- i. manufacturing a manhole base liner (1) having a base body (2) which is produced in one piece from a flexible material and with a wall thickness, with which it can be bent together essentially arbitrarily at least in some partial regions,
- ii. introducing the manhole base liner (1) with its base body (2) being bent-together through the entrance opening, and arranging the manhole base liner (1) with its base body (2) being bent apart at the base of the manhole,
- iii. fastening the manhole base liner (1) at the base of the manhole, and
- iv. backfilling the manhole base liner (1) with hardening filling material.
A manhole base liner made of polyurea.
Dependencies are inferred from the claim text.