JOSEPH C DUDDY
Engineers in Langhorne, PA
License number
Pennsylvania PE008208L
Category
Engineers
Type
Professional Engineer
Address
Address
Langhorne, PA 19053
Professional information
Method Of Preparing A Battery Paste Containing Fibrous Polyfluoroethylene For Use In The Plates Of A Lead-Acid Storage Battery
US Patent:
4315829, Feb 16, 1982
Filed:
Jan 27, 1978
Appl. No.:
5/872870
Inventors:
Joseph C. Duddy - Trevose PA
Francis P. Malaspina - Raleigh NC
William J. Martini - Fairless Hills PA
Francis P. Malaspina - Raleigh NC
William J. Martini - Fairless Hills PA
Assignee:
Exide Corporation - Philadelphia PA
International Classification:
C08L 2718
US Classification:
2521821
Abstract:
A method of preparing a battery paste for a lead-acid storage battery comprising: (a) mixing a water dispersion of polyfluoroethylene with lead material, (b) adding an aqueous solution of sulfuric acid to the lead material-dispersion mix and mixing to form a paste having fibrillation developed therein, (c) controlling the amount of fibrillation developed in the paste, and (d) controlling the paste density for use in a battery plate. The method provides an improved paste which permits substantial reduction in plate weights and density and loss of active material in the grid structure due to plate shedding over a conventional lead-acid paste. The saving in active material ranges from 10 to 30% over a conventional lead-acid paste without reduction in battery performance.
Method For Making Storage Battery Grid From Lead-Tin-Zinc Alloy
US Patent:
4109358, Aug 29, 1978
Filed:
Apr 22, 1977
Appl. No.:
5/790128
Inventors:
Joseph C. Duddy - Trevose PA
Edward R. Hein - Doylestown PA
Edward R. Hein - Doylestown PA
Assignee:
ESB Ray-O-Vac Management Corporation - Philadelphia PA
International Classification:
B23P 1500, B23P 2500
US Classification:
29 2
Abstract:
A unique alloy comprising lead with small additions of zinc and tin is used to make grids for lead acid cells. The alloy as produced is softer than is desirable. It is hardened by mechanical working. When properly worked, it has a strength and stiffness approaching that of other low alloy lead materials currently in use as storage battery grids.
Lead Base Alloy For Use In A Storage Battery Grid
US Patent:
4035556, Jul 12, 1977
Filed:
Apr 7, 1972
Appl. No.:
5/241914
Inventors:
Joseph C. Duddy - Trevose PA
Edward R. Hein - Doylestown PA
Edward R. Hein - Doylestown PA
Assignee:
ESB Incorporated - Philadelphia PA
International Classification:
H01M 466
US Classification:
429245
Abstract:
A unique alloy comprising lead with small additions of zinc and tin is used to make grids for lead acid cells. The alloy as produced is softer than is desirable. It is hardened by mechanical working. When properly worked, it has a strength and stiffness approaching that of other low alloy lead materials currently in use as storage battery grids.