公开(公告)号：US09962810B2

公开(公告)日：2018-05-08

申请号：US14562153

申请日：2014-12-05

Applicant: GRACO MINNESOTA INC.

Inventor： Keith Eliason

IPC: B24C9/00 ,  F16K17/36

CPC classification number: B24C9/00 ,  F16K17/36 ,  Y10T137/86574 ,  Y10T137/86614

Abstract: A dual control shut off system, such as a dead man system for a blasting system, blasting equipment, or other equipment having both pneumatic and electric safety control circuits, may include an electric dead man's switch or a pneumatic dead man's switch. An embodiment of the dual control dead man system is for wet abrasive blasting systems used for cleaning, preparing surfaces, removing coatings, and/or other abrasive blasting operations. Embodiments of the dual control shut off system provide the ability to conveniently switch between an electric and pneumatic shut off system.

公开(公告)号：US20170274501A1

公开(公告)日：2017-09-28

申请号：US15620878

申请日：2017-06-13

Applicant: Graco Minnesota Inc.

Inventor： Keith Eliason

IPC: B24C7/00

CPC classification number: B24C7/0007

Abstract: The invention is directed toward wet-abrasive blasting systems used for cleaning, preparing surfaces, removing coatings, and other abrasive blasting applications. The wet abrasive basting system has a blast pot that includes a venting system. The venting system may be a self-venting system that allows gases to be vented during charging and prevents gases from accumulating in the blast pot during operation. In wet abrasive blasting systems a slurry is conveyed via a piping system, hoses, etc. to a mixer connected to a source of pressurized gas where slurry and compressed air/gas are combined and directed through the blast hose and blast nozzle.

公开(公告)号：US10076823B2

公开(公告)日：2018-09-18

申请号：US15899737

申请日：2018-02-20

Applicant: Graco Minnesota Inc.

Inventor： Keith Eliason ,  Nicolas K. Studt

IPC: B24C3/00 ,  B24C7/00 ,  B24C5/04 ,  B24B57/02 ,  F16K15/02 ,  B05B7/14 ,  F16K17/06

CPC classification number: B24C7/0015 ,  B05B7/1436 ,  B05B7/144 ,  B24B57/02 ,  B24C5/04 ,  B24C7/003 ,  B24C7/0038 ,  B24C7/0076 ,  F16K15/026 ,  F16K17/06

Abstract: Wet abrasive blasting systems are described that have a slurry piping system and a gas piping system that have pipes and other piping components, such as valves and regulators, that have a more consistent internal cross-sectional area than conventional wet abrasive blasting systems. The more consistent flow area provides astonishing improvements in blasting efficiency and consistent and predictable slurry flow rates.

公开(公告)号：US20180169835A1

公开(公告)日：2018-06-21

申请号：US15899737

申请日：2018-02-20

Applicant: Graco Minnesota Inc.

Inventor： Keith Eliason ,  Nicolas K. Studt

IPC: B24C7/00 ,  B24B57/02 ,  B24C5/04

CPC classification number: B24C7/0015 ,  B05B7/144 ,  B24B57/02 ,  B24C5/04 ,  B24C7/003 ,  B24C7/0038 ,  B24C7/0076 ,  F16K15/026 ,  F16K17/06

Abstract: Wet abrasive blasting systems are described that have a slurry piping system and a gas piping system that have pipes and other piping components, such as valves and regulators, that have a more consistent internal cross-sectional area than conventional wet abrasive blasting systems. The more consistent flow area provides astonishing improvements in blasting efficiency and consistent and predictable slurry flow rates.