Protective system for P-trap

A thermally insulated P-trap installation for a sink or the like, comprising:

• a tubular piping assembly consisting of a substantially straight sink tailpiece member, a substantially J-shaped J-bend, a substantially L-shaped waste arm, and nut structure joining said tailpiece member and waste arm in end-to-end relationship to the opposite ends of said J-bend;
• and
• a thermal insulation system comprising a first, substantially J-shaped tubular piece, a second, substantially straight tubular piece, and a third, substantially L-shaped tubular piece;
• each of said pieces having opposite end portions, each being fabricated as a single unit from a resiliently yieldable material having thermal insulating properties, and each being longitudinally slit to permit spreading of the marginal portions extending along said slit, for facile installation;
• said first piece having a substantially uniform external cross section along its entire length, and said second and third pieces having said uniform external cross section along major portions of their lengths, one of said end portions of each of said second and third pieces constituting a collar portion of enlarged cross-section relative to said uniform cross section, and defining therewithin an inwardly extending recess having said uniform cross section so as to permit said collar portions to telescopically overlap and engage said end portions of said first piece when installed thereadjacent, and to accommodate said nut structure therewithin;
• said first, second and third pieces being installed, respectively, over said J-bend, said tailpiece member, and said waste arm of said piping assembly, with said collar portions of said second and third pieces disposed in telescopically overlapped and engaged relationship to said end portions of said first piece.

A system for the insulation of the piping for a sink or the like, comprising a first, substantially J-shaped tubular piece, a second, substantially straight tubular piece, a third, substantially L-shaped tubular piece, and a fourth, elongate, rectilinear tubular piece, said pieces being fabricated from a resiliently yieldable material having thermal insulating properties, each being slit along its length to permit spreading of marginal portions so as to enable facile installation, said first, second and third pieces being of substantially the same cross-sectional dimensions along their lengths, and each having opposite end portions, said pieces being adapted for installation with end portions of said second and third pieces disposed in telescopically overlapped, engaged relationship with said end portions of said first piece, one of said end portions at both locations of overlap being of enlarged cross-sectional dimensions, relative to said same dimensions;

• said fourth piece having adjacent one end thereof a valve-cover section of relatively large cross-sectional dimensions, having adjacent the opposite end thereof a tube-cover section of relatively small cross-sectional dimensions, and having therebetween a pipe cover section of intermediate cross-sectional dimensions, said valve cover section having an annular flange portion defining a relatively small first aperture disposed on the longitudinal axis of said fourth piece at said one end thereof, and having spaced therefrom, and disposed on said slit thereof, structure defining a second aperture extending radially therethrough.