David L Murdock

US Patent:

45213925, Jun 4, 1985

Filed:

Mar 14, 1983

Appl. No.:

6/475275

Inventors:

Harold E. Mills - Lake City FL
David L. Murdock - Lake City FL
Richard M. Ramer - Gainesville FL
Francis M. Sale - Lake City FL

Assignee:

Occidental Chemical Agricultural Products, Inc. - Tampa FL

International Classification:

C01B 2516

US Classification:

423317

Abstract:

Phosphoric acids of significantly different content of soluble impurities, especially magnesium compounds, can be blended to produce a phosphoric acid with a decreased tendency for forming detrimental solids when converted to a liquid fertilizer or on storage, or during transportation as when the acid is transported by ocean vessel or rail road tank car. The blending can be effected either before or after a concentration step or steps (e. g. , evaporation to "merchant grade" or to superphosphoric acid). For example, wet process phosphoric acid produced by a dihydrate or gypsum process can be blended with a phosphoric acid produced by a hemihydrate process.

US Patent:

47277580, Mar 1, 1988

Filed:

Aug 28, 1986

Appl. No.:

6/901219

Inventors:

David L. Murdock - Lake City FL

Assignee:

Occidental Chemical Corporation - Niagara Falls NY

International Classification:

G01N 120

US Classification:

7386361

Abstract:

A flow-through sampling device is provided for obtaining clear filtrate samples from a pipeline containing a slurry of phosphoric acid and calcium sulphate. The sampling device comprises a sample chamber having inlet and outlet pipes connected to the high pressure and low pressure sides of the pipeline, respectively, the sample chamber having a filter attached to its side portion for removing solids from the slurry prior to obtaining a fluid sample. The sampling device can be equipped with an automatic analyzer for continuously monitoring the composition of the flow stream.

US Patent:

43767567, Mar 15, 1983

Filed:

Dec 5, 1980

Appl. No.:

6/215885

Inventors:

Harold E. Mills - Lake City FL
David L. Murdock - Lake City FL
Richard M. Ramer - Gainesville FL
Francis M. Sale - Lake City FL

Assignee:

Occidental Chemical Company - White Springs FL

International Classification:

C01B 2516

US Classification:

423317

Abstract:

Phosphoric acids of significantly different content of soluble impurities, especially magnesium compounds, can be blended to produce a phosphoric acid with a decreased tendency for forming detrimental solids when converted to a liquid fertilizer or on storage, or during transportation as when the acid is transported by ocean vessel or railroad tank car. The blending can be effected either before or after a concentration step or steps (e. g. , evaporation to "merchant grade" or to superphosphoric acid). For example, wet process phosphoric acid produced by a dihydrate or gypsum process can be blended with a phosphoric acid produced by a hemihydrate process.

US Patent:

53177339, May 31, 1994

Filed:

Sep 30, 1992

Appl. No.:

7/954416

Inventors:

David M. Murdock - New Milford NJ

Assignee:

CISGEM Technologies, Inc. - Simsbury CT

International Classification:

G06F 1540

US Classification:

395600

Abstract:

A system is disclosed for the automation of virtually all clerical functions in an office, such as for example, an insurance agency. Virtually any document generated by the office may be printed without the need for pre-printed forms, as the system prints such forms on a laser printer near the worker requesting the form, using a page description language (PDL) appropriate to the printer. The clerical activity involved in maintaining, updating, retrieving, displaying and printing information relating to the functions of the office is supported. A complete audit history of all activity to a specific database (DB) file record is maintained without saving the entire DB record in a historical file. The system also supports a worker when it is desired to interrupt a particular task and execute a different task, without losing information already entered for the first task, but without allowing the worker to exit the system without completing or accounting for the first task.

US Patent:

55176445, May 14, 1996

Filed:

May 25, 1994

Appl. No.:

8/249034

Inventors:

David M. Murdock - New Milford NJ

Assignee:

CISGEM Technologies, Inc. - Simsbury CT

International Classification:

G06F 1700

US Classification:

395650

Abstract:

A system is disclosed for the automation of virtually all clerical functions in an office, such as for example, an insurance agency. Virtually any document generated by the office may be printed without the need for pre-printed forms, as the system prints such forms on a laser printer near the worker requesting the form, using a page description language (PDL) appropriate to the printer. The clerical activity involved in maintaining, updating, retrieving, displaying and printing information relating to the functions of the office is supported. A complete audit history of all activity to a specific database (DB) file record is maintained without saving the entire DB record in a historical file. The system also supports a worker when it is desired to interrupt a particular task and execute a different task, without losing information already entered for the first task, but without allowing the worker to exit the system without completing or accounting for the first task.

US Patent:

44459262, May 1, 1984

Filed:

Nov 5, 1981

Appl. No.:

6/318502

Inventors:

Harold E. Mills - Lake City FL
David L. Murdock - Lake City FL
Richard M. Ramer - Gainsboro FL
Francis M. Sale - Lake City FL

Assignee:

Occidental Chemical Co. - Los Angeles CA

International Classification:

C05B 700

US Classification:

71 34

Abstract:

Phosphoric acids of significantly different content of soluble impurities, especially magnesium compounds, can be blended to produce a phosphoric acid with a decreased tendency for forming detrimental solids when converted to a liquid fertilizer or on storage, or during transportation as when the acid is transported by ocean vessel or railroad tank car. The blending can be effected either before or after a concentration step or steps (e. g. , evaporation to "merchant grade" or to superphosphoric acid). For example, wet process phosphoric acid produced by a dihydrate or gypsum process can be blended with a phosphoric acid produced by a hemihydrate process.

US Patent:

54487293, Sep 5, 1995

Filed:

May 25, 1994

Appl. No.:

8/249883

Inventors:

David M. Murdock - New Milford NJ

Assignee:

Cisgem Technologies, Inc. - Simbsury CT

International Classification:

G06F 1730

US Classification:

395600

Abstract:

A system is disclosed for the automation of virtually all clerical functions in an office, such as for example, an insurance agency. Virtually any document generated by the office may be printed without the need for pre-printed forms, as the system prints such forms on a laser printer near the worker requesting the form, using a page description language (PDL) appropriate to the printer. The clerical activity involved in maintaining, updating, retrieving, displaying and printing information relating to the functions of the office is supported. A complete audit history of all activity to a specific database (DB) file record is maintained without saving the entire DB record in a historical file. The system also supports a worker when it is desired to interrupt a particular task and execute a different task, without losing information already entered for the first task, but without allowing the worker to exit the system without completing or accounting for the first task.