STEPHEN HOPE
Vehicle Board in Huntingdon Valley, PA

License number
Pennsylvania MV203241
Category
Vehicle Board
Type
Vehicle Salesperson
Address
Address
Huntingdon Valley, PA 19006

Professional information

Stephen Hope Photo 1

Electrode Construction For Solid State Electrochemical Cell

US Patent:
4808496, Feb 28, 1989
Filed:
Mar 13, 1987
Appl. No.:
7/025475
Inventors:
Henry F. Hope - Huntingdon Valley PA
Stephen F. Hope - Huntingdon Valley PA
Assignee:
MHB Joint Venture - Dayton OH
International Classification:
H01M 618
US Classification:
429192
Abstract:
Electrodes for a solid-state battery at least one of which comprises a layer of ionic and electronic conductive polymer spheres. Each polymer sphere consists of an active electrode material core encapsulated in an ionically and electronically conductive polymeric material.


Stephen Hope Photo 2

Color Printing Control System And Method

US Patent:
4526462, Jul 2, 1985
Filed:
Mar 22, 1983
Appl. No.:
6/477824
Inventors:
Henry F. Hope - Huntingdon Valley PA
Stephen F. Hope - Huntingdon Valley PA
David Fidelman - Roslyn Heights NY
Assignee:
Hope Industries, Inc. - Willow Grove PA
International Classification:
G03B 2773, G03B 2780
US Classification:
355 38
Abstract:
A color printing control system for making prints from negatives having a color printer and a microprocessor. The output of photocells which read color negatives is applied to the microprocessor enabling it to calculate print time signals. These signals are applied, for example, to paddles and move them into the light path to terminate light exposure. A print test probe reads the density of the prints and is coupled to the microprocessor and forms a feedback loop which allows the microprocessor to adjust its internal values. In this manner, color balancing is performed and prints made from over and underexposed negatives have the same density as properly exposed negatives, without knowledge of paper characteristics and without operator setup calculations. This is achieved using the difference in density between a reference print and prints made by the system as a basis for calculating correction factors which are applied to such values as slope to cause subsequent print time signals to result in correct density. The system also corrects color predominance in negatives where the conventional integration to gray method would print incorrectly.


Stephen Hope Photo 3

Color Printing Control System And Method

US Patent:
4657378, Apr 14, 1987
Filed:
May 30, 1985
Appl. No.:
6/739187
Inventors:
Henry F. Hope - Huntingdon Valley PA
Stephen F. Hope - Huntingdon Valley PA
David Fidelman - Roslyn Heights NY
Assignee:
Hope Industries, Inc. - Willow Grove PA
International Classification:
G03B 2773, G03B 2780
US Classification:
355 38
Abstract:
A color printing control system for making prints from negatives having a color printer and a microprocessor. The output of photocells which read color negatives is applied to the microprocessor enabling it to calculate print time signals. These signals are applied, for example, to paddles and move them into the light path to terminate light exposure. A print test probe reads the density of the prints and is coupled to the microprocessor and forms a feedback loop which allows the microprocessor to adjust its internal values. In this manner, color balancing is performed and prints made from over and underexposed negatives have the same density as properly exposed negatives, without knowledge of paper characteristics and without operator setup calculations. This is achieved using the difference in density between a reference print and prints made by the system as a basis for calculating correction factors which are applied to such values as slope to cause subsequent print time signals to result in correct density. The system also corrects color predominance in negatives where the conventional integration to gray method would print incorrectly.


Stephen Hope Photo 4

Adjustable Metering Pump

US Patent:
4231724, Nov 4, 1980
Filed:
Mar 9, 1978
Appl. No.:
5/884880
Inventors:
Henry F. Hope - Huntingdon Valley PA
Stephen F. Hope - Huntingdon Valley PA
International Classification:
F04B 4300, F04B 3900, F04B 3910
US Classification:
417472
Abstract:
A reciprocating adjustable stroke positive displacement fluid pump is provided with an expandable chamber driven in the displacement or feed direction by an eccentric drive acting through a driven member. The eccentric drive moves the expandable chamber to its limit of excursion in the displacement or feed direction. Adjustment means cooperating with stop means limits the excursion of the driven member and the expansion of the expandable chamber in the suction or intake direction so that the amount of fluid pumped is continuously adjustable from no volume to the capacity of the expandable chamber by positioning the stop means. The pump is further provided with means for driving a plurality of individually adjustable pumps from the same drive motor and with means for equalizing the load on the pump motor.


Stephen Hope Photo 5

Composite Electrolytes For Electrochemical Devices

US Patent:
5378558, Jan 3, 1995
Filed:
Jan 7, 1993
Appl. No.:
8/001145
Inventors:
Stephen F. Hope - Huntingdon Valley PA
International Classification:
H02M 1040
US Classification:
429192
Abstract:
A solid state polymer electrolyte composite which is formed by impregnating a fibrous open mesh, electrically non-conductive net, with a liquid, ion-conductive polymer, and curing the polymer to form a solid state or semi-solid state electrolyte composite.


Stephen Hope Photo 6

Transport Roller

US Patent:
3994380, Nov 30, 1976
Filed:
Jan 5, 1976
Appl. No.:
5/646630
Inventors:
Henry F. Hope - Huntingdon Valley PA
Stephen F. Hope - Huntingdon Valley PA
John A. Hope - Huntingdon Valley PA
International Classification:
B65G 3902
US Classification:
193 37
Abstract:
A transport roller is disclosed for advancing elongated strips of flat sheet material such as photographic film, paper and the like in tanks for chemical treatment, in driers and for other purposes which comprises a hollow tubular roller body having shafts extending from its ends, with an improved leakproof and quickly assembled shaft mounting being provided in expanded frictional engagement with the tube.