US5414967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clean room wall system
Assignee: Unistrut International Corp
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Filing: 1993-10-19
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Granted: 1995-05-16
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Expires: 2013-10-19
Abstract
Abstract A wall system for clean rooms employs an elongated framing member having four channels each with a thread slot in the bottom of the channel. This four channel arrangement facilitates the concealment of the fasteners and brackets used to join framing members to one another.
Inventors
- 👤 Dennis O. Cates
- 👤 Randy Webb
- 👤 Roger Crawford
- 👤 Ron Jackson
- 👤 Mary K. Rossman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:36
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/7407; E04B2/7453; E04B2/7455; E04B9/00; E04B9/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
347 words
A wall system for clean rooms comprising: a first framing member for retaining structural panels having an elongated body with a generally square cross-section defined by a front surface and an opposed rear surface and a first side surface and an opposed second side surfaces, a front channel recessed into the front surface, a front threaded slot recessed into a bottom surface of the front channel, a rear channel recessed into the rear surface, a rear thread slot recessed into a bottom surface of the rear channel, a first side channel recessed into the first side surface, a first side thread slot recessed into a bottom surface of the first side channel, a second side channel recessed into the second side surface a second side thread slot recessed into a bottom surface of the first side channel, a first glazing spline receptor slot in the first side and disposed between the first side channel and the front surface, and a second glazing spline receptor slot in the second side opposite the first glazing spline receptor slot and disposed between the second side channel and the front surface; a second framing member substantially identical to the first framing member abutting one of the first and second sides of the first framing member; a third framing member substantially identical to the first framing member abutting the other of the first and second sides of the first framing member and aligned with the second framing member; four L-shaped clip angles with fastener apertures and each disposed both in part in the side channel of the first framing member and in part in one of the second and third member second channels and being retained therein by screws engaging the corresponding thread slots; and a moment connection having a U-shaped portion and outwardly extending flanges with fastener apertures therein with the flanges disposed in the rear channels of the second and third framing members and held therein by screws and with the U-shaped portion wrapping around the first framing member whereby the moment connection is nearly concealed within the framing members.
Claim 2
Dependent Claim
347 words
A wall system for clean rooms comprising: a first framing member for retaining structural panels having an elongated body with a generally square cross-section defined by a front surface and an opposed rear surface and a first side surface and an opposed second side surfaces, a front channel recessed into the front surface, a front threaded slot recessed into a bottom surface of the front channel, a rear channel recessed into the rear surface, a rear thread slot recessed into a bottom surface of the rear channel, a first side channel recessed into the first side surface, a first side thread slot recessed into a bottom surface of the first side channel, a second side channel recessed into the second side surface a second side thread slot recessed into a bottom surface of the first side channel, a first glazing spline receptor slot in the first side and disposed between the first side channel and the front surface, and a second glazing spline receptor slot in the second side opposite the first glazing spline receptor slot and disposed between the second side channel and the front surface; a second framing member substantially identical to the first framing member abutting one of the first and second sides of the first framing member; a third framing member substantially identical to the first framing member abutting the other of the first and second sides of the first framing member and aligned with the second framing member; four L-shaped clip angles with fastener apertures and each disposed both in part in the side channel of the first framing member and in part in one of the second and third member second channels and being retained therein by screws engaging the corresponding thread slots; and a moment connection having a U-shaped portion and outwardly extending flanges with fastener apertures therein with the flanges disposed in the rear channels of the second and third framing members and held therein by screws and with the U-shaped portion wrapping around the first framing member whereby the moment connection is nearly concealed within the framing members.
Claim 3
Dependent Claim
138 words
A wall system for clean rooms comprising: a framing member for retaining structural panels having an elongated body with a generally rectangular cross-section, a first surface forming one side of the elongated body, a first channel recessed into the first surface, and a first thread slot recessed into a bottom surface of the first channel; a first panel retainer being elongated and disposed in part in the first channel and extending outward from the first channel to beyond an adjacent side; a second panel retainer being elongated and disposed in part in the first channel separated from the first retainer panel by a gap and extending outward from first the channel and away from the first panel retainer; and a plurality of threaded fasteners passing between the panel retainers and engaging the thread slot, thereby retaining the retainers.
Claim 4
Dependent Claim
138 words
A wall system for clean rooms comprising: a framing member for retaining structural panels having an elongated body with a generally rectangular cross-section, a first surface forming one side of the elongated body, a first channel recessed into the first surface, and a first thread slot recessed into a bottom surface of the first channel; a first panel retainer being elongated and disposed in part in the first channel and extending outward from the first channel to beyond an adjacent side; a second panel retainer being elongated and disposed in part in the first channel separated from the first retainer panel by a gap and extending outward from first the channel and away from the first panel retainer; and a plurality of threaded fasteners passing between the panel retainers and engaging the thread slot, thereby retaining the retainers.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-05-15 | 1998-11-14 | 1999-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-05-15 | 2002-11-14 | 2003-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-05-15 | 2006-11-14 | 2007-05-16 | $7700.00 | Window Closed / Lapsed |