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US 2010/0059504 A1Published application
Open coil resistance heater with right and left hand installation capability
OwnerJames L. Sherrill, H. Keith Howardinventors
Life of this patent
Estimating the term…
Abstract
An open coil resistance heater assembly is made for universal mounting between left and right hand installations in an appliance or other equipment. The heater assembly has its coils arranged symmetrically about a bisecting plane of the heater assembly and/or a center line of its terminal assembly aligned with the bisecting plane. The symmetrical coil arrangement and/or bisected terminal assembly allow the heater to be used in right hand or left hand installations.
Claims16
1-26. (canceled)
An open coil electric heater comprising:
- a duct defining a flow channel;
- a frame having a plurality of insulators mounted to the frame and protrusions extending along opposite side edges, the protrusions engaging the duct for joining the frame to the duct;
- at least one resistance wire coil mounted to the frame via the plurality of insulators,
- the plurality of insulators, the duct, the frame, and at least one resistance wire coil forming a heater structure having a plane that bisects the duct longitudinally;
- and
- at least one terminal block mounted to one of the opposing side edges of the frame containing the protrusions, a centerline of the terminal block aligned with the bisecting plane of the duct to form a first installation orientation, a second installation orientation defined by rotation of the frame and duct 180 degrees from the first installation orientation,
- the engagement between the protrusions and the duct maintaining the alignment of the at least one terminal block with the bisecting plane in the second installation orientation to allow the heater structure to be mounted to appliances requiring first or second installation orientations.
4 more elements
An open coil electric heater comprising:
- a duct defining a flow channel;
- a frame having a plurality of insulators mounted to the frame,
- means for joining the frame to the duct;
- at least one resistance wire coil mounted to the frame via the plurality of insulators,
- the plurality of insulators, the duct, the frame, and at least one resistance wire coil forming a heater structure having a plane that bisects the duct longitudinally;
- and
- at least one terminal block Mounted to one side of the duct to extend therefrom, a centerline of the terminal block aligned with the bisecting plane of the duct to form a first installation orientation, a second installation orientation defined by rotation of the duct 180 degrees from the first installation orientation whereby the centerline of the terminal block is still aligned with the bisecting plane to allow the heater structure to be mounted to appliances requiring first or second installation orientations.
4 more elements
Dependencies are inferred from the claim text.