US4091719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding booths
Assignee: Individual
•
Filing: 1977-03-07
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Granted: 1978-05-30
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Expires: 1997-03-07
Abstract
Abstract A welding booth is described that is comprised of a plurality of individual welding compartments that are gathered in an elongated rectangular cluster. The compartments are joined by a common longitudinal air receiving plenum that leads to a central single upright exhaust stack. Each booth includes a vent screen through which air passes to exhaust fumes from the compartments. The compartments are defined by a central longitudinal wall that extends the full length of the compartment cluster and by a plurality of transverse side walls. The lower edges of the walls are spaced a distance above the floor to allow free communication of air between the compartments. Flexible curtains are provided over the front openings of the individual compartments with the lower edge of each curtain spaced above the floor surface such that outside air may be drawn into the individual compartments from the area beneath the curtains. Thus, air drawn through a compartment will proceed in an inward and upward direction directly past a work station within the compartment that is located elevationally below the vent screen. The operator within the compartment is protected from inhaling the fumes present in nearly all forms of welding operations.
Inventors
- 👤 Vernon W. Galloway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:01
CPC Classifications
B; B08; B08B; B08B15/00; B08B15/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
244 words
A ventilated multi-compartment welding booth, comprising: a supporting frame defining a series of welding compartments arranged in an elongated rectangular cluster; a plurality of side walls transversely oriented to the longitudinal dimension of the frame and defining outwardly facing front entrance to the individual compartments; a central longitudinal partition wall extending the length of the frame and joined with the side walls thereby enclosing the booths on three sides; a common roof structure covering the cluster of compartments; closure means spanning the front entrance of the compartments for selectively closing the front openings; said closure means having bottom closure edges space elevationally above the ground or floor surface to allow free passage of outside air under the bottom closure edges and into the associated compartments; a central longitudinal air plenum operatively associated with the booths through the roof structure and leading to a central exhaust stack; vent screens on the frame openly interconnecting each compartment with the plenum and wherein the screens are joined at lower horizontal edges thereof to the central wall and to the roof structure at upper horizontal edges; work stations within each compartment adjacent the central wall and elevationally below the associated vent screens; and blower means associated with the plenum for drawing air through the screens from under the elevated bottom edges of the closure means thereby creating an inward and upward moving air current that passes by the work stations and directly enters the plenum through the screens.
Claim 2
Dependent Claim
244 words
A ventilated multi-compartment welding booth, comprising: a supporting frame defining a series of welding compartments arranged in an elongated rectangular cluster; a plurality of side walls transversely oriented to the longitudinal dimension of the frame and defining outwardly facing front entrance to the individual compartments; a central longitudinal partition wall extending the length of the frame and joined with the side walls thereby enclosing the booths on three sides; a common roof structure covering the cluster of compartments; closure means spanning the front entrance of the compartments for selectively closing the front openings; said closure means having bottom closure edges space elevationally above the ground or floor surface to allow free passage of outside air under the bottom closure edges and into the associated compartments; a central longitudinal air plenum operatively associated with the booths through the roof structure and leading to a central exhaust stack; vent screens on the frame openly interconnecting each compartment with the plenum and wherein the screens are joined at lower horizontal edges thereof to the central wall and to the roof structure at upper horizontal edges; work stations within each compartment adjacent the central wall and elevationally below the associated vent screens; and blower means associated with the plenum for drawing air through the screens from under the elevated bottom edges of the closure means thereby creating an inward and upward moving air current that passes by the work stations and directly enters the plenum through the screens.
Claim 3
Dependent Claim
24 words
The booth as defined by claim 1 wherein the closure means is comprised of a fire resistant curtain hung across each compartment front opening.
Claim 4
Dependent Claim
20 words
The booth as defined by claim 1 wherein the screens are inclined with the upper horizontal edges spaced apart laterally.
Claim 5
Dependent Claim
33 words
The booth as set out by claim 1 wherein the blower means has the capacity to pull air and welding fumes through the screens at a minimum of 400 cubic feet per minute.
Claim 6
Dependent Claim
16 words
The booth as set out by claim 1 wherein the screens are formed of expanded steel.
Claim 7
Dependent Claim
27 words
The booth as set out by claim 1 wherein the side walls and central wall include lower horizontal edges spaced elevationally above the ground or floor surface.
Claim 8
Dependent Claim
36 words
The booth as set out by claim 1 wherein the vent screens include vertical side edges and the side walls are joined to the roof structure and to the vertical side edges of the vent screens.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-29 | 1981-11-28 | 1982-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-29 | 1985-11-28 | 1986-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-29 | 1989-11-28 | 1990-05-30 | $7700.00 | Window Closed / Lapsed |