David I. Freed

Person

Sudbury, MA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Pipe bursting and replacement method
- Patent number RE35542
- Issue date Jun 24, 1997
- Consolidated Edison Company of New York, Inc.
- Allan T. Fisk
- 405 - Hydraulic and earth engineering
Information Patent Grant
Apparatus and method for internally sealing pipes
- Patent number 5,586,580
- Issue date Dec 24, 1996
- Gas Research Institute
- Allan T. Fisk
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Pipe bursting and replacement apparatus
- Patent number RE35271
- Issue date Jun 11, 1996
- Consolidated Edison Company of New York, Inc.
- Allan T. Fisk
- 405 - Hydraulic and earth engineering
Information Patent Grant
Guided mole
- Patent number 5,350,254
- Issue date Sep 27, 1994
- Foster-Miller, Inc.
- Allan T. Fisk
- E21 - EARTH DRILLING MINING
Information Patent Grant
Process of press fitting pipe sections together to form a pipeline
- Patent number 5,184,391
- Issue date Feb 9, 1993
- Electric Power Research Institute, Inc.
- Allan T. Fisk
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Positive seal coupling internal joining press
- Patent number 5,079,816
- Issue date Jan 14, 1992
- Electric Power Research Institute, Inc.
- Allan T. Fisk
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Pipe bursting and replacement method
- Patent number 5,078,546
- Issue date Jan 7, 1992
- Consolidated Edison Company of New York, Inc.
- Allan T. Fisk
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pipe bursting and replacement apparatus and method
- Patent number 4,983,071
- Issue date Jan 8, 1991
- Consolidated Edison Company of New York, Inc.
- Allan T. Fisk
- E21 - EARTH DRILLING MINING

David I. Freed

Person

Patents Grantslast 30 patents

Pipe bursting and replacement method

Apparatus and method for internally sealing pipes

Pipe bursting and replacement apparatus

Guided mole

Process of press fitting pipe sections together to form a pipeline

Positive seal coupling internal joining press

Pipe bursting and replacement method

Pipe bursting and replacement apparatus and method