Invention Grant
- Patent Title: Inflatable hatch sealing device
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Application No.: US14081518Application Date: 2013-11-15
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Publication No.: US09725237B2Publication Date: 2017-08-08
- Inventor: Don Johnson , Jeff Cousineau , Ted Shreve , Mike Crum
- Applicant: OPW-Engineered Systems, Inc.
- Applicant Address: US OH Lebanon
- Assignee: OPW-Engineered Systems, Inc.
- Current Assignee: OPW-Engineered Systems, Inc.
- Current Assignee Address: US OH Lebanon
- Agency: Workman Nydegger
- Main IPC: B65D90/10
- IPC: B65D90/10 ; B65D90/34
Abstract:
Embodiments of the present invention relate to apparatuses, systems, and methods for constructing, installing, and using an inflatable hatch sealing device in environmentally sealing a manhole. In particular, the inflatable hatch sealing device has a sealing assembly with a directed inflatable air bladder, and the sealing assembly is rotatable relative to a contact disc.
Public/Granted literature
- US20150136778A1 INFLATABLE HATCH SEALING DEVICE Public/Granted day:2015-05-21
Information query
