SAND-BLASTING DEVICE

• US 3,599,375 A
• Filed: 12/13/1968
• Issued: 08/17/1971
• Est. Priority Date: 12/13/1968
• Status: Expired due to Term

• Current Assignee: Frank D. Nunemaker
• Original Assignee: Frank D. Nunemaker
• Inventors: Nunemaker, Frank D.
• Application Number:
  US04/783,671
• Time in Patent Office: 977 Days
• US Class Current: 451/89
• CPC Class Codes: B24C 3/06 movable; portable
• CPC Class Codes: B24C 9/00 Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material

Abstract

A sandblasting device in the form of a generally rectangular cabinet communicating with a sand hopper at its lower end, the cabinet having a transparent viewing window in its top wall, an arm opening in its front wall, and a flexible panel in either an end wall or at a front corner of the cabinet. The nozzle portion of a sandblasting gun is removably secured in a central opening in the flexible panel and a baffled opening on the opposite end wall is adapted to be connected to a source of vacuum. The top wall of the cabinet is a hinged cover. An operator is adapted to insert one hand through the arm opening in the front wall to manually hold an article to be sand blasted and manipulate the gun with the other hand to direct a stream of sand against the article.

Claims

1. A sandblasting device comprising a cabinet having front and rear walls, a pair of end walls and a top wall defining a blasting chamber and having a container at the lower end thereof comprising a hopper for retaining a supply of abrasive, a flexible conduit extending from said hopper exteriorly of the cabinet, a blaster gun having a handle at one end and an outlet nozzle at the opposite end thereof and also having a hose connection means thereon, said flexible conduit being connected with the hose connection means on the blaster gun for supplying an abrasive from the hopper to the gun for discharge through said nozzle, said cabinet having a single arm opening in said front wall through which an operator may insert his arm for the purpose of holding and manipulating an article to be blasted in the blasting chamber, said cabinet having a second opening formed at least partially in one end wall of the cabinet with its axis extending generally horizontally, a panel in said second opening, said panel having a generally central opening therein in which the outlet nozzle of the gun is adapted to be slideably inserted in generally frictionally sealed relation from exteriorly, of the cabinet while the handle of the gun and the hose connection means thereon remain exterior of the cabinet, said panel being flexible and sufficiently large to enable the nozzle of the gun when frictionally inserted through said central opening to be directed in various positions at the article which is hand held within the cabinet by manipulating the gun exteriorly of the cabinet by means of its handle while retaining the sealed connection between the outlet nozzle of the gun and said central opening in said flexible panel, whereby the article within the blasting chamber may be blasted when the nozzle of the gun is inserted into the central opening in the panel and a workpiece located exteriorly of the cabinet is adapted to be blasted when the gun is slideably removed from the opening in the panel.

2. A sandblasting device as called for in claim 1 wherein the second opening is disposed entirely in one end wall of the cabinet angularly related to the front wall so that the axes of the arm opening and the second opening are angularly related.

3. A sandblasting device as called for in claim 1 wherein said cabinet is removably mounted on said hopper, said hopper having sidewalls and being closed at the bottom and open at its upper end, said cabinet being open at its lower end such that when it is placed on said hopper the lower Open end of the cabinet is in open communication with the open upper end of the hopper, said hopper having wheels thereon enabling the hopper to be readily moved from one location to another.