David S Waller

US Patent:

8178779, May 15, 2012

Filed:

Oct 29, 2008

Appl. No.:

12/260416

Inventors:

Jin-An He - Parsippany NJ, US
Russell Gaudiana - Merrimack NH, US
David Waller - Lexington MA, US
Lian Wang - Lowell MA, US
Srini Balasubramanian - Westford MA, US
Jeremiah Mwaura - Lowell MA, US
Christoph Brabec - Linz, AT

Assignee:

Konarka Technologies, Inc. - Lowell MA

International Classification:

H01L 31/00

US Classification:

136263

Abstract:

This disclosure relates to a photovoltaic cell containing first and second electrodes, a photoactive layer between the first and second electrodes, and a hole transport layer between the first electrode and the photoactive layer. The hole transport layer consists of an ionic copolymer.

US Patent:

52859967, Feb 15, 1994

Filed:

Apr 27, 1992

Appl. No.:

7/874083

Inventors:

David C. Waller - Sunrise FL

International Classification:

F16M 1300

US Classification:

248687

Abstract:

An apparatus for covering the lower rim of a metal can, where the rim has an outer face and an inner face and a bottom edge, includes a channel member having first and second side wall portions and a bottom wall portion connecting the first and second side wall portions, for fitting over the lower rim, such that the first side wall portion substantially covers the outer face, and the second side wall portion substantially covers the inner face, and the bottom wall portion substantially covers the bottom edge. The first side wall portion preferably has an inner first side wall surface, additionally including a lip portion extending from the inner first side wall surface toward the second side wall portion, for resiliently snapping over the rim and contracting above the rim to help hold the channel member securely on the can. Where the can has a can wall, the first side wall portion of the channel member optionally extends upward along the can wall above the rim for providing a surface for displaying a message. The channel member is preferably formed into a continuous loop having a shape essentially matching that of the rim.