David B Mcdaniel

US Patent:

7399947, Jul 15, 2008

Filed:

Aug 10, 2006

Appl. No.:

11/502162

Inventors:

Bradley B. Rassatt - Apple Valley MN, US
David J. McDaniel - Lino Lakes MN, US

Assignee:

Carestream Health, Inc. - Rochester NY

International Classification:

G03D 13/00
H05B 1/02

US Classification:

219469, 219216, 399 69, 399279, 399286, 430350

Abstract:

A thermal processor including a rotating drum including an internal heater configured to heat and maintain the drum at a desired set-point temperature, and a plurality of pressure rollers, including a first pressure roller, circumferentially spaced along a segment of the drum. A temperature sensor is configured to provide a temperature signal indicative of a temperature proximate to the first pressure roller. A controller is configured to adjust the desired set-point temperature based on the temperature signal.

US Patent:

20110091822, Apr 21, 2011

Filed:

Mar 12, 2007

Appl. No.:

09/144927

Inventors:

JOHN R. SCUFSA - INVER GROVE HEIGHTS MN, US
DAVID J. MCDANIEL - VADNAIS HEIGHTS MN, US
CURT A. WIENS - ST. PAUL MN, US

International Classification:

G03C 5/00
G03B 15/00

US Classification:

430350, 396575

Abstract:

A thermal processor for use in developing an image in an imaging material which is transported along a transport path through the thermal processor. The thermal processor includes a preheat assembly for preheating the thermally processable material to the threshold temperature. The preheat assembly includes a heated member having a major surface facing the thermally processable material. A dwell assembly is provided for thermal development of the image in the thermally processable material. Means are provided for moving the thermally processable material along the transport path through the preheat assembly and the dwell assembly including a roller assembly which contacts the thermally processable material. The roller assembly includes rollers positioned between the heated member and the thermally processable material. Means are provided for reducing optical density loss in the thermally processable material, including means for selectively changing the temperature of the heated member as the thermally processable material moves along the transport path.

US Patent:

58955925, Apr 20, 1999

Filed:

Sep 3, 1997

Appl. No.:

8/922278

Inventors:

Kent R. Struble - Woodbury MN
David J. McDaniel - Cottage Grove MN

Assignee:

Imation Corp. - Oakdale MN

International Classification:

G03G 1528
G03D 700

US Classification:

219216

Abstract:

A thermal processor and method for using the same which is particularly useful for developing a sheet of imaging material, such as photothermographic film. The thermal processor includes means for transporting the imaging material through the apparatus. The thermal processor also includes means for heating the imaging material to develop the image in the imaging material. The thermal processor also includes a fog reduction system which removes a gaseous by-product emitted from the imaging material which may cause fogging of the image as the image is developed on the imaging material.

US Patent:

58698060, Feb 9, 1999

Filed:

Feb 2, 1996

Appl. No.:

8/594649

Inventors:

Kent R. Struble - Mahtomedi MN
David J. McDaniel - Cottage Grove MN
Duane A. Preszler - River Falls WI
George G. Lunde - St. Paul MN

Assignee:

Imation Corp. - Oakdale MN

International Classification:

G03G 1520

US Classification:

219216

Abstract:

A thermal processor and method for using the same which is particularly useful for developing a sheet of imaging material, such as photothermographic film. The thermal processor including means for heating the imaging material which include a plurality of heated surfaces within the thermal processor. The thermal processor also includes means for transporting the imaging material through the thermal processor and means for bending the imaging material a plurality of times to have a plurality of curvatures and for positioning the imaging material adjacent to the plurality of heated surfaces when the imaging material is heated by the heating means.

US Patent:

57900698, Aug 4, 1998

Filed:

Oct 6, 1995

Appl. No.:

8/540094

Inventors:

David J. McDaniel - Minneapolis MN
John J. Allen - Mendota Heights MN
Robert M. Biegler - Woodbury MN

Assignee:

Imation Corp. - Oakdale MN

International Classification:

B41J 247

US Classification:

347263

Abstract:

A thermal processor includes an air flow preventing means that substantially prevents the flow of air from a processor exit into a thermal processing compartment. The prevention of air flow reduces processing defects that otherwise could occur in sheets of thermally processed material handled by the thermal processor. The reduction of processing defects enhances the quality of the sheet of thermally processed material. In particular, the reduction of processing defects can enhance image quality of a sheet of photothermographic imaging material. The prevention of air flow reduces processing defects by maintaining a substantially uniform temperature within a thermal processing compartment of the thermal processor, and by reducing the condensation of fatty acids on interior surfaces of the thermal processing compartment prior to filtration.

US Patent:

58698078, Feb 9, 1999

Filed:

Feb 2, 1996

Appl. No.:

8/596410

Inventors:

Kent R. Struble - Mahtomedi MN
David J. McDaniel - Cottage Grove MN
Duane A. Preszler - River Falls WI

Assignee:

Imation Corp. - Oakdale MN

International Classification:

G03G 1520

US Classification:

219216

Abstract:

A thermal processor particularly useful for developing a sheet of imaging material, such as photothermographic film. A thermal processor useful for thermally developing an image in an imaging material. At least a first roller and a second roller are positioned to contact the imaging material when the imaging material is transported into the thermal processor. A first heating means includes first and second curved, heated portions which wrap around a first circumferential portion of the first roller and the second roller to heat these rollers.

US Patent:

20220236466, Jul 28, 2022

Filed:

May 20, 2020

Appl. No.:

17/605395

Inventors:

- St. Paul MN, US
Yi-Chen Chen - Zhubei City, TW
Tze Yuan Wang - New Taipei City, TW
Hiroki Matsuda - Tendo City, JP
Michelle L. Toy - North St. Paul MN, US
Ryan J. Eismin - St. Paul MN, US
David J. McDaniel - Lino Lakes MN, US
Matthew B. Johnson - Woodbury MN, US

International Classification:

G02B 5/30

Abstract:

An optical film includes a plurality of alternating first and second polymeric layers, such that the first polymeric layers have a smaller average in-plane index of refraction than the second polymeric layers and the first polymeric layers have a glass transition temperature of at least 107 deg. C. The optical film may be a reflective polarizer. An optical stack includes a linear absorbing polarizer and the reflective polarizer disposed on, and bonded to, the absorbing polarizer. The reflective polarizer has an optical reflectance of at least 60% for a first polarization state and an optical transmittance of at least 60% for an orthogonal second polarization state. When heated at 105 deg. C. for 15 minutes, a difference in shrinkage of the reflective polarizer and the absorbing polarizer along the first and second polarization states is greater than about zero and 0.2%, respectively.

US Patent:

20170357347, Dec 14, 2017

Filed:

Oct 23, 2015

Appl. No.:

15/523951

Inventors:

- St. Paul MN, US
Hui Luo - Woodbury MN, US
Neeraj Sharma - Woodbury MN, US
Robert A. Yapel - Oakdale MN, US
Ronald L. Imken - Georgetown TX, US
Jung-Sheng Wu - Woodbury MN, US
David T. Yust - Woodbury MN, US
Richard J. Pokorny - Maplewood MN, US
Lan H. Liu - Rosemount MN, US
Craig R. Sykora - New Richmond WI, US
David J. McDaniel - Lino Lakes MN, US
Yu Yang - Eden Prairie MN, US
Mitchell A.F. Johnson - Maplewood MN, US

International Classification:

G06F 3/044

Abstract:

Touch sensitive projection screens are disclosed. In particular, touch sensitive projection screen including drive electrodes, sense electrodes, and optical diffusers are disclosed. The touch sensitive projection screens are adapted for use on a horizontal surface. Touch sensitive projection screens including shrinkable layers are also disclosed.