Dual blade windshield wiper with scraper

• US 7,302,732 B2
• Filed: 02/15/2006
• Issued: 12/04/2007
• Est. Priority Date: 02/15/2006
• Status: Expired due to Fees

• Current Assignee: David J. Alley
• Original Assignee: David J. Alley
• Inventors: Alley, David J.
• Primary Examiner(s): Graham; Gary K.
• Application Number:
  US11/354,389
• Publication Number:
  US 20070186366A1
• Time in Patent Office: 657 Days
• Field of Search: 152/503.3, 152/504, 152/504.1, 152/502.2, 152/502.3, 151/05, 151/18
• US Class Current: 15/250.4
• CPC Class Codes: B60S 1/28 characterised by a plurality of wipers B60S1/06 takes precedence
• 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 1/3856 Gripping the blade
• CPC Class Codes: B60S 1/3867 pin formed on the interior of side walls
• CPC Class Codes: B60S 1/40 Connections between blades and arms
• CPC Class Codes: B60S 1/42 resilient
• CPC Class Codes: B60S 2001/3832 cleaning by rigid or semi-rigid scraping elements, e.g. for removing ice

Abstract

A windshield wiper is provided which includes a wiper frame; a scraper having an upper and a lower surface defining opposite leading edges, the upper surface connected to the wiper frame, wherein the wiper frame and scraper form an assembly having a means for rotation about a fixed point relative to a wiper arm; and at least one wiping blade connected to the lower surface of the scraper.

Claims

1. A windshield wiper, comprising:

(a) a wiper frame having a wiper arm connector pivotally connected to a wiper arm, a wiper superstructure pivotally connected to the wiper arm connector, the superstructure having opposite ends, at least two wiper lever arms having inner and outer opposite ends and a central portion, and at least two mounting brackets having opposite ends and a central portion, the wiper lever arms central portions pivotally connected to the opposite ends of the superstructure, the mounting brackets central portions pivotally connected to the outer opposite ends of the wiper lever arms;

(b) a scraper having an upper and a lower surface defining opposite leading edges and a plurality of longitudinal slotted void portions extending through the upper and lower surface, the scrapper slidably connected to the mounting bracket opposite ends and the inner opposite ends of the wiper frame through the slotted void portions for continuously deforming the scraper relative to a curvature of a windshield when the wiper arm is traveling in an oscillating motion; and

(c) at least two wiping blades connected to the lower surface of the scraper.

2. The wiper according to claim 1 wherein the wiper frame further comprises at least two pin and spring linkage assemblies connecting the superstructure to the wiper arm connector.

3. The wiper according to claim 1 wherein the wiper frame further comprises at least two pin and spring linkage assemblies connecting the wiper lever arms inner ends and the scraper through the longitudinal slotted void portions.

4. The wiper according to claim 1 wherein the wiper frame superstructure further comprises a medial rectangular concave face having end walls, the end walls having centrally located inwardly projecting hubs, and wherein the connector comprises a rigid rectangular member having end wall and centrally located outwardly projecting axle members bearing fit into the hubs for rotation about a centroid of the connector and superstructure.

5. The wiper according to claim 4 wherein the connector further comprises an L-shaped bracket members extending laterally from, and attached to, the connector sidewalls for stopping the degree of angular rotation of the scraper relative to the plane of the windshield.