Pipe clamp with sleeve and gasket

A pipe clamp comprising:

• a band extending circumferentially from a first end to a second end;
• a tightening mechanism connected to said band near said first and second ends, said tightening mechanism including at least one fastener to bring said first and second ends toward each other to tighten said band;
• a split sleeve located radially inside of said band, said split sleeve extending axially from a first side to a second side and extending circumferentially from a first circumferential end to a second circumferential end, said split sleeve having at least one channel located between said first and second sides and extending between said first and second circumferential ends, said split sleeve including at least one tongue-and-groove joint, said tongue being located at said first circumferential end and said groove being located at said second circumferential end, said tongue and groove each having a side edge;
• and
• at least one gasket located radially inside of said split sleeve and received in said channel, wherein, upon tightening of said band and penetration of said tongue into groove, said side edges of said tongue and groove confront each other at one or more points to form a spaced separation at the confrontation, and said at least one gasket is wedged between said side edges of said tongue and groove at the spaced separation to form a gasketed seal thereat.

A pipe clamp comprising:

• a band extending circumferentially from a first end to a second end;
• a tightening mechanism connected to said band near said first and second ends, said tightening mechanism including at least one fastener to bring said first and second ends toward each other to tighten said band;
• a split sleeve located radially inside of said band, said split sleeve extending axially from a first side to a second side and extending circumferentially from a first circumferential end to a second circumferential end, said split sleeve having at least one channel located between said first and second sides and extending between said first and second circumferential ends, said split sleeve including at least one tongue-and-groove joint, said tongue being located at said first circumferential end and said groove being located at said second circumferential end confronting said tongue;
• and
• at least one split gasket located radially inside of said split sleeve and received in said channel, said at least one split gasket extending circumferentially from a first circumferential end to a second circumferential end, said first circumferential end located at said tongue and, when not tightened and penetrated, said first circumferential end has a first circumferential overhang portion overhanging a free end of said tongue, said second circumferential end located at said groove and, when not tightened and not penetrated, said second circumferential end has a second circumferential overhang portion overhanging a bottom edge of said groove;
• wherein, upon tightening of said band and penetration of said tongue into said groove, said first and second circumferential overhang portions of said at least one split gasket compress against each other in the circumferential direction, and said at least one split gasket compresses against an outer surface of a first pipe, of a second pipe, or of both and at least one of said circumferential portions fills in a pocket formed in part by the free end of said tongue, an unpenetrated portion of said groove, and said bottom edge of said groove, said at least one split gasket forming a seal at said pocket.