Invention Grant
- Patent Title: Extruded cold-expansion compression collar
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Application No.: US15686758Application Date: 2017-08-25
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Publication No.: US11543065B2Publication Date: 2023-01-03
- Inventor: Gary L. Runyan
- Applicant: Zurn Industries, LLC
- Applicant Address: US WI Milwaukee
- Assignee: Zurn Industries, LLC
- Current Assignee: Zurn Industries, LLC
- Current Assignee Address: US WI Milwaukee
- Agency: Michael Best & Friedrich LLP
- Main IPC: F16L47/22
- IPC: F16L47/22 ; F16L47/06 ; B29C48/00 ; F16L47/12 ; B29C48/09 ; B29K23/00 ; B29L31/24

Abstract:
Disclosed are systems and methods for manufacturing compression collars for reinforcing sealed connections between a length of piping and a plumbing fitting. Specifically, compression collars and related methods of making include extruding a hollow tube having one or more ridges which are then partially removed or trimmed to provide positioning tabs on one end of the compression collar. The compression collars can be cut to the desired length from the extruded hollow tube. In this way, compression collars with features for enhancing the strength and reliability of an interference fit, as well as their ease of use, can be manufactured rapidly with little material waste through modifications to the extrusion process.
Public/Granted literature
- US20180066784A1 Extruded Cold-Expansion Compression Collar Public/Granted day:2018-03-08
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