Slidewire wiper contact
AssigneeHoneywell Inc.
InventorBertil Eck
Life of this patent
Estimating the term…
Abstract
A slidewire wiper contact has a wiper arm mounted at one end on a rotatable shaft while the other end of the arm carries an electrically conductive support extending past the end of the arm. A free end of the electrically conductive support has attached thereto a plurality of substantially constant outer diameter coils of electrically conductive wire. The coils are arranged in a continuous spiral while the electrically conductive support is attached thereto by a low resistance connection extending along a line on an outer surface of the coils. Electrical connection means are attached to the electrically conductive support for movement therewith during rotation of the wiper arm to maintain an electrical connection to the conductive support.
Claims7
A slidewire wiper contact comprising a plurality of substantially constant outer diameter coils of a spirally wound electrically conductive wire,
- a coil support connected to said coils to coaxially support said plurality of coils,
- a support arm attached to said coil support for supporting said coil support and said support arm being made of a plastic material and said coils are each partially embedded in said material,
- means for driving said support arm to urge said plurality of coils across a resistance element contacted by an outside surface of said coils.
Dependencies are inferred from the claim text.