Wiper arm assembly

In a wiper arm construction for use in pivotably biasing a wiper arm back and forth across a surface relative to a pivotal axis,

• said arm having first and second relatively movable sections,
• means supporting said arm whereby one end thereof is movable back and forth between two spaced locations,
• an electrically energizable drive motor operable in a first mode to cause said arm to move toward one of said locations and operable in a second mode to cause said arm to move toward the other of said locations,
• a source of power for said drive motor and connecting means operatively connecting said source with said motor, and
• electrical switching means and means responsive to preselected movement between said sections for altering the connection between said source of power and said drive motor and thereby switching the mode of operation of said motor from one mode thereof to the other.

In a wiper arm construction for use in moving the wiper arm across a surface,

• means supporting one end of said arm whereby the opposite end thereof oscillates between two spaced locations,
• an electrically energized reversible drive motor for causing said arm to oscillate between said locations, said motor being mounted on and movable with said arm relative to a pivotal axis,
• a source of electrical energy and means for communicating said source with said motor, and
• switch means operable to vary said means for communicating said source with said motor so as to effect reversing of said motor.

A wiper arm construction for use in moving a wiper blade across a surface defined by a structure having first and second sides, said surface being located on the first side of the structure,

• means supporting said arm for pivotal movement relative to said surface, and attachment means for operatively securing said supporting means and said arm to said structure,
• said attachment means being located entirely on the first side of said structure,
• said wiper arm comprising first and second generally longitudinally aligned sections and means connecting adjacent ends of said arm sections for pivotal movement relative to one another,
• said supporting means supporting one end of said arm whereby the opposite end thereof may be oscillated back and forth between two spaced-apart locations,
• drive means operable in a first mode to cause one end of said arm to move in the first direction toward a first location and operable in a second mode to move said one end of said arm toward a second location, and
• means responsive to preselected relative movement between said arm sections to change the mode of operation of said drive means from one mode of operation thereof to the other.

A wiper arm construction for use in pivotably biasing a wiper blade back and forth across an associated surface relative to a pivotal axis,

• said wiper arm comprising first and second sections,
• means pivotally connecting adjacent portions of said arm sections together,
• means supporting one end of said arm whereby the opposite end thereof may oscillate back and forth between two spaced-apart locations,
• an electrically energized drive motor mounted on and pivotable with said arm, said motor being operable in a first mode to cause said one end of said arm to move in a first direction to one of said locations and operable in a second mode for causing said one end of said arm to move in a second direction toward the other of said locations, and
• electrical switching means responsive to preselected movement between said arm sections to change the mode of operation of said drive motor from one mode of operation thereof to the other.

A combination wiper arm and wiper blade assembly comprising,

• means supporting said assembly for pivotal movement about a predetermined axis,
• said arm having first and second articulated sections,
• connecting means for operatively connecting said arm sections and including means providing for relative pivotal movement between said arm sections about an axis substantially parallel to said first mentioned axis, and
• an electrically energized drive motor mounted on one of said arm sections and pivotable with said arm about said first mentioned axis.