Linda Truitt Creagh, 832521 Windsor Dr, Denton, TX 76209

4511598, Apr 16, 1985

Oct 4, 1982

6/432593

Linda T. Creagh - Argyle TX

Xerox Corporation - Stamford CT

B05D 512

427 58

An electromechanical transducer for an ink jet printer is vacuum impregnated with, e. g. , epoxy or silicone materials. The impregnated transducer is less subject to chemical attack and to being shorted out by penetration by conductive inks.

4801473, Jan 31, 1989

May 14, 1987

7/050285

Linda T. Creagh - West Lebanon NH
Steven F. Fulton - Hanover NH
Paul A. Hoisington - Norwich VT
Bruce A. Paulson - Lebanon NH
Robert R. Schaffer - Canaan NH
Charles W. Spehrley - Hartford VT

Spectra, Inc. - Hanover NH

B05D 506

427164

A transparency includes a transparent substrate such as a polyester material, an ink pattern disposed on one surface of the transparent sheet in the form of three-dimensional ink spots having curved surfaces and a transparent layer covering the ink spots which has an index of refraction approximately the same as that of the ink spots. The transparent layer is applied to the substrate and the ink spots in the form of a liquid coating which wets the surfaces of the substrate and ink spots and spreads over them to produce a transparent layer having a maximum deviation of about 20 degrees from a plane parallel to the substrate.

5003322, Mar 26, 1991

Jul 14, 1989

7/379918

Linda T. Creagh - West Lebanon NH
Charles W. Spehrley - Hartford VT
Nathan P. Hine - Norwich VT
Dean H. Cranston - Lebanon NH
Jack B. MacDonald - Dedham MA

Spectra, Inc. - Hanover NH

B41J 204
G01D 1516

346 11

In the embodiment of the hot melt ink supply unit described in the specification, a block of solid hot melt ink has a peripheral surface formed with a key configuration and a handle is removably connected to the block by a threaded projection. After insertion of the block into a correspondingly keyed opening in a heated reservoir, the handle is turned to separate the handle portion from the block of solid ink. A container provided with a removable seal encloses the block of solid ink and handle to protect the ink from contamination.

4877676, Oct 31, 1989

Sep 20, 1988

7/246696

Linda T. Creagh - West Lebanon NH
Steven F. Fulton - Hanover NH
Paul A. Hoisington - Norwich VT
Bruce A. Paulson - Lebanon NH
Robert R. Schaffer - Canaan NH
Charles W. Spehrley - Hartford VT

Spectra, Inc. - Hanover NH

B32B 704
B32B 300

428204

In the particular embodiments of the invention described in the specification, a transparency includes a transparent substrate made of a polyester material, an ink pattern disposed on one surface of the transparent sheet in the form of three-dimensional ink spots having curved surfaces and a transparent layer convering the ink spots which has an index of refraction approximately the same as that of the ink spots. The transparent layer is applied to the substrate and the ink spots in the form of a liquid coating which wets the surfaces of the substrate and ink spots and spreads over them to produce a transparent layer having a maximum deviation of about 20 degrees from a plane parallel to the substrate.

4751528, Jun 14, 1988

Sep 9, 1987

7/094664

Charles W. Spehrley - Hartford VT
Linda T. Creagh - West Lebanon NH
Robert R. Schaffer - Canaan NH

Spectra, Inc. - Hanover NH

G01D 1516
G01D 900
G03G 1516

346140R

In the particular embodiment described in the specification, a hot melt ink jet system includes a temperature-controlled platen provided with a heater and a thermoelectric cooler electrically connected to a heat pump and a temperature control unit for controlling the operation of the heater and the heat pump to maintain the platen temperature at a desired level. The apparatus also includes a second thermoelectric cooler to solidify hot melt ink in a selected zone more rapidly to avoid offset by a pinch roll coming in contact with the surface of the substrate to which hot melt ink has been applied. An airtight enclosure surrounding the platen is connected to a vacuum pump and has slits adjacent to the platen to hold the substrate in thermal contact with the platen.

4005928, Feb 1, 1977

Aug 1, 1973

5/384651

Allan Robert Kmetz - Richardson TX
Linda Truitt Creagh - Argyle TX

Texas Instruments Incorporated - Dallas TX

G02F 113

350160LC

A low current d. c. operated liquid crystal display comprises a liquid crystal material composition having impurities therein to effect a current density at 25. degree. C in the range of 0. 5 to 3. 0. mu. a/cm. sup. 2. In one aspect of the invention, the liquid crystal composition is provided by purifying the material to 99. 95 percent or greater and then adding controlled amounts of preselected impurities so that the total amount of impurities in the liquid crystalline composition comprises 1/2 to 2 percent by weight. In another aspect of the invention, the liquid crystalline material is initially prepared so that it has a purity in the range of 98. 0 to 99. 5 percent by weight. An adsorbed layer may be formed on the electrodes to enhance electrical charge injection. In one specific embodiment, the liquid crystalline composition is utilized to form a display panel that is directly compatible with 12 volts d. c. , which is typically available in automotive vehicles.

5172135, Dec 15, 1992

Mar 25, 1991

7/674704

Linda T. Creagh - West Lebanon NH
Charles W. Spehrley - Hartford VT
Nathan P. Hine - Norwich VT
Dean H. Cranston - Lebanon NH
Jack B. MacDonald - Dedham MA

Spectra, Inc. - Hanover NH

G01D 1516

346 11

In the embodiment of the hot melt ink supply unit described in the specification, a block of solid hot melt ink has a peripheral surface formed with a key configuration and a handle is removably connected to the block by a threaded projection. After insertion of the block into a correspondingly keyed opening in a heated reservoir, the handle is turned to separate the handle portion from the block of solid ink. A container provided with a removable seal encloses the block of solid ink and handle to protect the ink from contamination.

4864330, Sep 5, 1989

Feb 1, 1989

7/303971

Linda T. Creagh - West Lebanon NH
Charles W. Spehrley - Hartford VT
Nathan P. Hine - Norwich VT
Dean H. Cranston - Lebanon NH
Jack B. MacDonald - Dedham MA

Spectra, Inc. - Hanover NH

G01D 1516

346140R

In the embodiment of the hot melt ink supply unit described in the specification, a block of solid hot melt ink has a peripheral surface formed with a key configuration and a handle is removably connected to the block by a threaded projection. After insertion of the block into a correspondingly keyed opening in a heated reservoir, the handle is turned to separate the handle portion from the block of solid ink. A container provided with a removable seal encloses the block of solid ink and handle to protect the ink from contamination.