Patrick K Donahue

US Patent:

20060185264, Aug 24, 2006

Filed:

Jan 17, 2006

Appl. No.:

11/275576

Inventors:

Patrick Donahue - Superior WI, US
Scott Johnson - Lake Nebagamon WI, US

International Classification:

E04H 6/00

US Classification:

052079100

Abstract:

An improved prefabricated building structure is shown that is easy to assemble, and disassemble. Designs include transportability as a substantially single unit, for example, a standardized shipping container format. Designs shown further include reduction of wasted shipping material by using panels for both the container when collapsed, and the structure when assembled. Features such as fastener designs provide ease of assembly and form a robust structure when assembled.

US Patent:

52345190, Aug 10, 1993

Filed:

Feb 19, 1991

Appl. No.:

7/657722

Inventors:

Charles T. Talbot - Portage WI
Patrick K. Donahue - Superior WI

Assignee:

Glen Oak Lumber and Milling, Inc. - Montello WI

International Classification:

B32B 304

US Classification:

156212

Abstract:

A veneer profile wrapping process employs a water-base polyvinylacetate glue system which is activated before application with an acid catalyst. The glue is applied to the veneer by a roller applicator. The veneer is transported on a vacuum belt which prevents the veneer from warping while the glue is dried with fans and infrared radiation. The process employs a porous substrate, such as particle board, which is heated by infrared radiation on all sides. Polyvinylacetate glue is applied to the surface of the substrate, which will be wrapped with veneer and the heat of the substrate plus additional infrared radiation and fans evaporates and dries the glue. The glue on the substrate is dried for approximately 60 to 90 seconds and on the veneer for approximately 10-15 seconds on cross feed drying lines. The veneer is inverted on a side belt changer and forced into intimate contact with the substrate by heated metal rollers. Rubber rollers apply pressure and heat guns and infrared lamps apply process heat which rapidly bonds the veneer to the substrate, producing a bond with high green strength which may be almost immediately sanded or milled.

US Patent:

20200024608, Jan 23, 2020

Filed:

Mar 23, 2018

Appl. No.:

16/496140

Inventors:

- Evanston IL, US
Patrick S. DONAHUE - Chicago IL, US

Assignee:

Northwestern University - Evanston IL

International Classification:

C12N 15/63
C12N 15/85

Abstract:

Disclosed are systems and methods that include or utilize composable mammalian elements of transcription (COMET) including engineered recombinant proteins that regulate transcription and engineered DNA promoter sequences that are regulated by the engineered recombinant proteins. The elements may be composed to form logic gates, gene expression cascades and programs, and cell-based biosensors.