Method of removing frozen material from a wiper
First Claim
1. A method of improving transmission of light through a light transmitting screen member having a frozen mass merely trapped between the screen member and a wiper blade which is moveable across the screen member, the method comprising:
- repeatedly vibrationally flexing the wiper blade to move different parts of the wiper blade, out of phase with one another, out of and into contact with the screen member, the strength of repetitive vibrational flexing;
a) achieving an intensity of movement of the different parts of the wiper blade out of and into contact with the screen member to create recurrent impact forces, in an out-of-phase manner, upon different parts of the screen member; and
b) effecting removal of the frozen mass under the influence of the recurrent impact forces.
2 Assignments
0 Petitions
Accused Products
Abstract
Various embodiments of a wiper assembly are disclosed which facilitate the removal by complete release or shattering of a frozen mass of ice or snow which has become merely trapped beneath a wiper blade during its movement. In particular, there is described a method and structures for removing such frozen masses by vibrating a wiper blade at high intensity of vibration. The vibrational intensity is normally measured when no frozen masses are present and causes at least parts of the wiper blade to move out of contact with the windshield.
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Citations
13 Claims
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1. A method of improving transmission of light through a light transmitting screen member having a frozen mass merely trapped between the screen member and a wiper blade which is moveable across the screen member, the method comprising:
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repeatedly vibrationally flexing the wiper blade to move different parts of the wiper blade, out of phase with one another, out of and into contact with the screen member, the strength of repetitive vibrational flexing; a) achieving an intensity of movement of the different parts of the wiper blade out of and into contact with the screen member to create recurrent impact forces, in an out-of-phase manner, upon different parts of the screen member; and b) effecting removal of the frozen mass under the influence of the recurrent impact forces. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of improving transmission of light through a light transmitting screen member having a frozen mass merely trapped between the screen member and a wiper blade which is moveable across the screen member, the method comprising:
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generating a vibrational force and, simultaneously with the generation of the vibrational force, applying the vibrational force to the wiper blade; under the urgency of the vibrational force, repeatedly vibrationally flexing the wiper blade to move different parts of the wiper blade, out of phase with one another, out of and into contact with the screen member, the strength of repetitive vibrational flexing; a) achieving an intensity of movement of the different parts of the wiper blade out of and into contact with the screen member to create recurrent impact forces, in an out-of-phase manner, upon different parts of the screen member; and b) effecting removal of the frozen mass from the screen member under the recurrent vibrational impact forces. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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Specification