Welding fume funnel with magnetic coupling means

• US 5,702,493 A
• Filed: 10/31/1996
• Issued: 12/30/1997
• Est. Priority Date: 10/31/1996
• Status: Expired due to Fees

• Current Assignee: Charles Clinton Everetts, Randy Roger Everetts
• Original Assignee: Charles Clinton Everetts, Randy Roger Everetts
• Inventors: Everetts, Charles Clinton, Everetts, Randy Roger
• Primary Examiner(s): SMITH, DUANE
• Application Number:
  US08/742,210
• Time in Patent Office: 425 Days
• Field of Search: 55/385.1, 55/385.2, 55/383, 55/418, 55/419, 55/467, 55/471, 55/472, 55/473, 55/481, 55/506, 55/485, 55/356, 55/357, 55/DIG. 3, 55/DIG. 6 , 55/DIG. 18, 55/DIG. 29, 95/273, 95/284, 454/49, 454/56, 454/57, 454/63, 454/65, 454/66, 454/67
• US Class Current: 55/356
• CPC Class Codes: B01D 2273/28 Making use of vacuum or underpressure
• CPC Class Codes: B01D 46/0006 Filter elements or cartridges installed in a drawer-like manner
• CPC Class Codes: B01D 46/10 Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
• CPC Class Codes: B01D 46/42 Auxiliary equipment or operation thereof
• CPC Class Codes: B01D 46/62 connected in series
• CPC Class Codes: Y10S 55/06 Magnetic couplings
• CPC Class Codes: Y10S 55/18 Work bench

Abstract

A smoke removal device, especially designed for use in welding, having one or more portable funnels, with a wide opening through which suction may be directed to remove smoke from particular areas where combustion is taking place, and a narrow opening opposite to the wide opening, a vacuum device for creating the suction by which the smoke is removed, the vacuum device having an inlet valve for each funnel, and hoses connecting the narrow opening of each portable funnel to one of the inlet valves of the vacuum device. In a preferred embodiment, the portable funnel is connected to a base containing magnets. The funnel is connected to the base by a first cylinder extending downward from the funnel, with the first cylinder fitting inside a second cylinder attached to the base, with the funnel and first cylinder being rotatable in relation to the base and the second cylinder. A wheeled, multifilter carriage is provided to clean smoke coming from the funnel before it is exhausted into the surrounding air.

Claims

1. A smoke removal device, comprising:

a portable funnel having a wide opening and an opposing narrow opening;

a base for supporting said portable funnel;

a magnet contained within said base for removably mounting said base to a supporting metallic surface;

a lever for raising and lowering said magnet within said base;

a vacuum device including;

a housing having an inlet valve and an outlet,

a plurality of filters arranged in series within said housing between said inlet valve and said outlet, and

a motorized fan located within said outlet;

a hose connecting said narrow opening of said portable funnel to said inlet valve of said vacuum device; and

a flow control valve in said narrow opening of said portable funnel for controlling the amount of flow through said portable funnel.

2. The smoke removal device according to claim 1, further comprising:

a first cylinder connected to said portable funnel; and

a second cylinder connecting said base to said first cylinder, said first cylinder fitting inside said second cylinder, said first cylinder being rotatable in relation to said second cylinder.

3. The smoke removal device according to claim 2, further comprising:

a plurality of holes through said second cylinder;

a plurality of prongs extending from said first cylinder and through said plurality of holes; and

a push button release on said first cylinder for retracting said plurality of prongs, thereby allowing said first cylinder to adjustably rotate within said second cylinder.

4. The smoke removal device according to claim 2, further comprising:

a pair of vertical extensions extending from said base, said vertical extensions having holes therethrough;

said second cylinder having a hole therethrough; and

a bolt extending through said holes in said vertical extensions and said hole in said second cylinder, said bolt having two screw-threaded ends with wing-nuts fastened thereto for pivotally adjusting said second cylinder.

5. The smoke removal device according to claim 1, wherein:

said housing includes a plurality of slots, the plurality of filters fitting through said plurality of slots; and

each said plurality of filters includes a handle extending therefrom, whereby said plurality of filters can be removed from said plurality of slots.

6. The smoke removal device according to claim 1, wherein said vacuum device has a removable door, said outlet being through said removable door, and said motorized fan being attached to said removable door.

7. The smoke removal device according to claim 1, wherein said vacuum device is supported by a plurality of wheels.

8. The smoke removal device according to claim 6, wherein said removable door includes at least two handles.

9. The smoke removal device according to claim 1 wherein said housing has a plurality of inlet valves thereon.