Dual action self-cleaning windshield wiper

• US 5,257,436 A
• Filed: 10/19/1992
• Issued: 11/02/1993
• Est. Priority Date: 10/19/1992
• Status: Expired due to Fees

• Current Assignee: Kuo-Ching Chen
• Original Assignee: Ming-Tung Yang
• Inventors: Yang, Ming-Tung
• Primary Examiner(s): Hornsby, Harvey C.
• Assistant Examiner(s): Graham, Gary K.
• Application Number:
  US07/962,825
• Time in Patent Office: 379 Days
• Field of Search: 15/250.33, 15/250.42, 15/250.40, 15/250.41, 15/250.19, 15/250.23, 15/250.36
• US Class Current: 15/250.4
• CPC Class Codes: B60S 1/38 Wiper blades provided with liquid spreading means B60S1/524; provided with gas spreading means B60S1/546
• CPC Class Codes: B60S 1/3801 characterised by a blade support harness consisting of several articulated elements B60S1/3803, B60S1/3806 take precedence
• CPC Class Codes: B60S 2001/3813 chacterised by a support harness consisting of several articulated elements
• CPC Class Codes: B60S 2001/3818 the backing strip being a channel-like element, e.g. not continuous
• CPC Class Codes: B60S 2001/3824 the blade or squeegee pivoting about an axis parallel to blade longitudinal axis
• CPC Class Codes: B60S 2001/3834 equipped with brush-like elements
• CPC Class Codes: B60S 2001/3837 with more than one wiping edge or lip

Abstract

A dual action, self-cleaning windshield wiper having a pair of elongated brushes and a pair of wiper blades pivotally attached to a main blade frame. The elongated brushes are mounted on a brush mounting frame portion of supporting frames which pivot to enable a leading brush to contact and clean the windshield while at trailing brush is out of contact with the windshield. A wiper blade frame also pivots so that a leading wiper blade contacts the windshield while a trailing wiper blade contacts the trailing brush to clean the wiper blade.

Claims

1. A dual action, self-cleaning windshield wiper assembly for cleaning a vehicle windshield by oscillating movement over said windshield, said assembly comprising:

(a) an elongated main windshield wiper frame;

(b) a plurality of supporting frames extending from the elongated main windshield wiper frame, each supporting frame defining a generally "C"-shaped groove and having brush mounting frames extending therefrom on opposite sides of the generally "C"-shaped groove, each brush mounting frame having a brush mounting clip;

(c) elongated brushes mounted in the brush mounting clips such that an elongated brush is disposed on each side of the generally "C"-shaped groove;

(d) first attaching means pivotally attaching the supporting frames to the main frame such that, as the windshield wiper assembly moves over the windshield, the supporting frames pivot with respect to said main frame such that a leading brush contacts the windshield while a trailing brush is out of contact with the windshield; and

(e) an elongated wiper blade frame having a pair of elongated wiper blades mounted in lateral spaced relation thereon, said wiper blade frame pivotally mounted in the generally "C"-shaped grooves so as to pivot with respect to the brush mounting frames such that as the wiper assembly moves over the windshield, a leading wiper blade contacts the windshield and a trailing wiper blade contacts the trailing elongated brush so as to clean the trailing wiper blade.

2. The dual action, self-cleaning windshield wiper assembly of claim 1 wherein the elongated main windshield wiper frame comprises:

a) a middle frame having opposite ends;

b) at least one side frame attached to each opposite end of the middle frame, each side frame having a supporting frame extending therefrom; and

,

c) an end frame pivotally attached to one end of the at least one side frame on each opposite end of the main frame, each such end frame having a supporting frame extending therefrom.