LandOfFree - US Patents - Listing for Pipe joints or couplings

Pipe joints or couplings – With fluid pressure seal – With separate – encased pipe-gripping means

Swivel joint for improved bearing and seal life

Pipe joints or couplings – With fluid pressure seal – Swivel with flange in socket

Swivel joint for reverse circulation drill

Pipe joints or couplings – With leakage or drip disposal

Swivel joint sealing system

Pipe joints or couplings – Swivel

Swivel joint system

Pipe joints or couplings – Swivel

Swivel joint system

Pipe joints or couplings – Swivel – Pipe in socket type

Swivel joint with stepped bearing races

Reissue Patent

Pipe joints or couplings – Swivel – Pipe in socket type

Swivel joint with stepped bearing races

Pipe joints or couplings – Frangible element

Swivel lug pipe joint connections

Pipe joints or couplings – End to side or plate – Swivel with lateral port to annular sleeve

Swivel or rotating coupling

Pipe joints or couplings – With lubrication

Swivel or rotating joint

Pipe joints or couplings – With lubrication

Swivel or rotating joints

Pipe joints or couplings – With fluid pressure seal – Swivel with flange in socket

Swivel pipe joint

Pipe joints or couplings – With lubrication

Swivel seal assembly

Pipe joints or couplings – With fluid pressure seal – Swivel with flange in socket

Swivel seal construction

Pipe joints or couplings – Swivel – With rotation limits

Swivel stop

Pipe joints or couplings – Irrigation type

Swivel type adapter pipe fitting for sprinkler or drip-type irri

Pipe joints or couplings – Swivel – Pipe in socket type

Swivel unit

Pipe joints or couplings – Swivel – Pipe in socket type

Swivel with removable packing gland

Pipe joints or couplings – Ball and socket – Radially spaced spherical surfaces

Swivel-joint for the base of a riser-pipe