Modular platform electric trench heater
AssigneeThe Marley Company
InventorsBrett Starr, Brian Lynn, Andrew J. Martin, Patrick A. von zur Muehlen
Life of this patent
Estimating the term…
Abstract
A trench heater includes a case, a connecting unit, and a sub-assembly unit. The sub-assembly unit includes a baffle, a first junction panel, a second junction panel, and an electrical heating unit. The electrical heating unit includes a heating unit that comprises a heating element, a body, and a granular heat transfer medium. Multiple trench heaters may be connected end to end to create longer lengths via a modular platform.
Claims18
A modular platform electric trench heater comprising:
- a case;
- a connecting unit configured to connect said case to another case;
- and
- a sub-assembly unit located in said case, wherein said sub-assembly unit comprises:
- a baffle having a first end and a second end, wherein the baffle divides said case in a longitudinal direction into a first portion of said case and a second portion of said case;
- a first junction panel configured to fix said sub-assembly unit to said case and fixed to said first end of said baffle;
- a second junction panel configured to fix said sub-assembly unit to said case and fixed to said second end of said baffle;
- and
- an electrical heating unit located on said first portion of said case comprising a heating unit, wherein said heating unit comprises a heating element configured to radiate heat, a body, and a granular heat transfer medium.
A modular platform electric trench heater comprising:
- a case having a first height;
- a connecting unit configured to connect the case to another case;
- and
- a sub-assembly unit located in the case, wherein the sub-assembly unit comprises:
- a baffle having a first end and a second end, wherein the baffle divides the case in a longitudinal direction into a first portion of the case and a second portion of the case,
- wherein the baffle has a second height less than the first height;
- a first junction panel configured to fix the sub-assembly unit to the case and fixed to the first end of the baffle;
- a second junction panel configured to fix the sub-assembly unit to the case and fixed to the second end of the baffle;
- and
- an electrical heating unit located on the first portion of the case comprising a heating unit, wherein the heating unit comprises a heating element configured to radiate heat, a body, and a granular heat transfer medium.
A modular platform electric trench heater comprising:
- a case;
- a connecting unit configured to connect the case to another case;
- and
- a sub-assembly unit located in the case, wherein the sub-assembly unit comprises:
- a baffle having a first end and a second end, wherein the baffle divides the case in a longitudinal direction into a first portion of the case and a second portion of the case;
- a first junction panel configured to fix the sub-assembly unit to the case and fixed to the first end of the baffle;
- a second junction panel configured to fix the sub-assembly unit to the case and fixed to the second end of the baffle;
- and
- an electrical heating unit located on the first portion of the case comprising:
- a heating unit, wherein the heating unit comprises a heating element configured to radiate heat, a body, and a granular heat transfer medium;
- an on/off switch unit configured to turn the electrical heating unit on and off;
- and
- a protective limit switch unit in electrical communication with the on/off switch unit comprising a mechanism to detect a failure in the electrical heating unit.
Dependencies are inferred from the claim text.