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US 4,170,804 AGranted
Wiper arm and mounting head
AssigneeVanauto Accessories Proprietary Limited
InventorDouglas E. Scotcher
Life of this patent
Estimating the term…
Abstract
An improved wiper arm and connector head arrangement which may be readily assembled without use of special equipment by means of inserting opposed bosses on the head into corresponding open-sided recesses on the arm and then relatively rotating the head and the arm, to a position locating a tongue member on the head into a groove in the arm whereby the bosses can no longer be extracted through the open side of the recesses and therefore the head is attached to the arm.
Claims18
A wiper head attachable to a wiper arm,
- said wiper head having a boss and a finger,
- said wiper arm having a recess with an opening at one side thereof, and a shoulder;
- whereby said boss is insertable into said recess through said opening, whereafter said head is movable relative to said arm, by rotation of said boss in said recess, to a position locating said finger behind said shoulder,
- thereby preventing removal of said boss from said recess through said opening and thereby effecting said attachment.
1 more element
A wiper arm attachable to a wiper head,
- said wiper head having a boss and a finger,
- said wiper arm having a recess with an opening at one side thereof, and a shoulder;
- whereby said boss is insertable into said recess through said opening whereafter said head is movable relative to said arm, by rotation of said boss in said recess, to a position locating said finger behind said shoulder,
- thereby preventing removal of said boss from said recess through said opening and thereby effecting said attachment.
1 more element
An assembly of a wiper arm and a wiper head,
- said wiper head having a boss and a finger,
- said wiper arm having a recess with an opening at one side thereof, and a shoulder;
- whereby said boss is inserted into said recess through said opening whereafter said head is moved relative to said arm, by rotation of said boss in said recess, to a position locating said finger behind said shoulder,
- thereby preventing removal of said boss from said recess through said opening and thereby effecting said attachment.
1 more element
Dependencies are inferred from the claim text.