Duane Sanders

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Spokane, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Shredding mill
- Patent number 4,412,659
- Issue date Nov 1, 1983
- Thermoguard Insulation Co.
- Roger Crawford
- B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
Information Patent Grant
Bag type air cleaning apparatus
- Patent number 4,154,589
- Issue date May 15, 1979
- Thermoguard Insulation Co.
- G. Roger Crawford
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Open top plastic bag sealer
- Patent number 4,070,853
- Issue date Jan 31, 1978
- Thermoguard Insulation Company
- Duane Sanders
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Loose fill cellulose insulation material packing machine
- Patent number 4,055,203
- Issue date Oct 25, 1977
- Thermoguard Insulation Co.
- G. Roger Crawford
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL