LandOfFree - US Patents - Listing for Pipe joints or couplings,Flexible joint, rigid members,Concrete, clay, or masonry pipe

Pipe joints or couplings – Flexible joint – rigid members – Concrete – clay – or masonry pipe

Co-extruded dual durometer hardness pipe gasket

Pipe joints or couplings – Flexible joint – rigid members – Concrete – clay – or masonry pipe

Concrete pipe

Pipe joints or couplings – Flexible joint – rigid members – Concrete – clay – or masonry pipe

Concrete pipe adaptor and method of making

Pipe joints or couplings – Flexible joint – rigid members – Concrete – clay – or masonry pipe

Coupler apparatus for use with a tendon-receiving duct in a...

Pipe joints or couplings – Flexible joint – rigid members – Concrete – clay – or masonry pipe

Coupler apparatus for use with angled post-tension cables in...

Pipe joints or couplings – Flexible joint – rigid members – Concrete – clay – or masonry pipe

Duct coupler apparatus for use with precast concrete...

Pipe joints or couplings – Flexible joint – rigid members – Concrete – clay – or masonry pipe

Expansion joint and seal for sewer pipe

Pipe joints or couplings – Flexible joint – rigid members – Concrete – clay – or masonry pipe

Hydro penetration prevention sleeve

Pipe joints or couplings – Flexible joint – rigid members – Concrete – clay – or masonry pipe

Hydro penetration prevention sleeve

Pipe joints or couplings – Flexible joint – rigid members – Concrete – clay – or masonry pipe

Method for sealing a pipe juncture

Pipe joints or couplings – Flexible joint – rigid members – Concrete – clay – or masonry pipe

Non-leak pool fixture and method for implementing

Pipe joints or couplings – Flexible joint – rigid members – Concrete – clay – or masonry pipe

Pipe couplings

Pipe joints or couplings – Flexible joint – rigid members – Concrete – clay – or masonry pipe

Pipe joint

Pipe joints or couplings – Flexible joint – rigid members – Concrete – clay – or masonry pipe

Pipe or the like, a female end ring, and a method of...

Pipe joints or couplings – Flexible joint – rigid members – Concrete – clay – or masonry pipe

Plastic coupling sleeve for pipes

Pipe joints or couplings – Flexible joint – rigid members – Concrete – clay – or masonry pipe

Seal for manholes and drains

Pipe joints or couplings – Flexible joint – rigid members – Concrete – clay – or masonry pipe

Sealing gland construction for use in hydraulic unit joints

Pipe joints or couplings – Flexible joint – rigid members – Concrete – clay – or masonry pipe

Sleeve coupling

Pipe joints or couplings – Flexible joint – rigid members – Concrete – clay – or masonry pipe

Symmetrical coupler apparatus for use with precast concrete...