Electric heating rod attachment insertable into roof exhaust end of sewer vent pipe to prevent clogging from ice or snow accumulation

• US 5,214,266 A
• Filed: 09/26/1991
• Issued: 05/25/1993
• Est. Priority Date: 09/26/1991
• Status: Expired due to Fees

• Current Assignee: John D. Halone Jr
• Original Assignee: John D. Halone Jr
• Inventors: Halone, John D. Jr.
• Primary Examiner(s): Bartis, Anthony
• Application Number:
  US07/767,221
• Time in Patent Office: 607 Days
• Field of Search: 219/200, 219/201, 219/213, 219/523, 392/485, 392/488, 454/43, 165/47, 138/33, 4/218, 4/221
• US Class Current: 219/201
• CPC Class Codes: E03C 1/122 Pipe-line systems for waste water in building pipe-line systems in general F17D
• CPC Class Codes: E03C 1/1225 of air admittance valves structural details of air admittance valves F16K24/06
• CPC Class Codes: E04D 13/0409 Drainage outlets, e.g. gullies
• CPC Class Codes: E04D 2013/0418 with de-icing devices or snow melters
• CPC Class Codes: F16L 53/38 using elongate electric heating elements, e.g. wires or ribbons

Abstract

An electric heating attachment for electrically heating the exterior portion of a sewer vent of a building to keep the vent from clogging from snow and/or ice and frost that may accumulate on the building roof. The attachment has an elongated rod insertable into the vent a with an electric heating tape extending along the length thereof. Laterally extending arms on an upper portion of the rod engage the top edge of the vent to limit the extent of the insertion of the rod into the vent. The section of the rod extending above the lateral arms terminates in a hoop portion having a portion of the heating tape extending therealong to heat the area immediately above the sewer vent to keep this area open to the atmosphere by melting the snow and/or ice above the vent.

Claims

1. An electric heating device for attachment to and for electrically heating the portion of a sewer vent exterior of the roof of a building to keep the vent form clogging from snow and/or ice and frost that may accumulate about the vent on the roof of a building, comprising an elongated rod having an electrically activatable heating tape extend-along the length thereof and the rod and tape being adapted to be inserted lengthwise into the sewer vent from the exterior roof opening of the vent, said rod having laterally extending arms fixed to an upper portion thereof and extending laterally of the length of the rod to limit the extent of the insertion into the vent by the engagement of the lateral arms with the top edge of the vent so that the lateral arms rest on the top edge of the vent, said rod having a hook-like portion mounted to the rod above the lateral arms with said heating tape mounted to the hook-like portion, said hook-like portion and heating tape thereon extending above the top of the sewer vent when the rod is inserted into the vent so as to heat the area immediately above the sewer vent to keep this area open to the atmosphere by the heat from the heating tape melting any snow or ice above the vent.

2. An electric heating device for attachment to a sewer vent having an upper open end comprising an elongated rod, electric heating means with portions extending along the length of the rod, support means mounted to the top of the rod with portions of the electric heating means supported by said support means in a loop like manner above the top of the rod, said elongated rod being insertable downward into the upper open end of the vent, means on the rod below the support means and engagable with the vent to limit the insertion of the elongated rod into the vent, said heating means portions along the elongated rod acting to heat the vent with the heating means portions in a loop like manner acting to heat the area above the vent from freezing over the opening into the vent from the atmosphere.

3. An electric heating device for attachment to the upper end portion of a sewer exhaust vent mounted to the roof of a building and wherein the vent has an upper open end comprising an elongated rod, electrically activatable heat tape mounted along the length of the rod, electrically activatable heat tape mounted along the length of the rod, said rod having a portion with at least a portion of said heating tape thereon being insertable into the upper open end of the vent for heating the vent to keep the vent from freezing over from ice or snow accumulation, arm means mounted to the rod above said portion of said rod with said portion of said heating tape and engagable with the vent to limit the length that the portion of the rod with said portion of heating tape thereon is insertable into the vent.