Patent US4779707A successfully refreshed from Google Patents.
US4779707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modular elevator cab construction
Assignee: Montgomery Elevator Co
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Filing: 1986-07-29
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Granted: 1988-10-25
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Expires: 2006-07-29
Abstract
Abstract A modular elevator cab construction is provided for assembly onto a platform of an elevator cage substantially from within the area of the cab. A rear wall panel, two side wall panels and front wall structures are assembled by simple complementary interengaging hanger devices on the backside of the adjacent walls for assembling the walls in proper right-angular juxtaposition. Anchoring mechanisms are provided between the platform and the lower edges of the wall panels. A drop ceiling support framework is hung from the top edges of the surrounding, assembled walls without the use of extraneous fastening means. A unitary canopy structure surmounts the walls and has a skirt embracing the upper portions of the walls.
Inventors
- 👤 Stephen W. Smith
- 👤 Gilbert E. Londeen
- 👤 Christopher Lair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:08
CPC Classifications
B; B66; B66B; B66B11/00; B66B11/02; B66B11/0226; B66B11/0253
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
170 words
A modular elevator cab construction for assembly onto a platform of an elevator stile substantially from within the area of the cab, comprising: a rear wall panel and two side wall panels; complementary interengaging hanger means on the backsides of adjacent panels for assembling the two side wall panels in proper right-angular juxtaposition to the rear wall panel by vertical sliding engagement; anchoring means between said platform and the lower edges of said wall panels, including channel means embedded in the platform, bracket means secured in part to the backside of the wall panels, anchoring members for securing the bracket means to the channel means, and access openings through the wall panels at the lower end portions thereof for manipulating the anchoring members, the bracket means extending from the backside of the wall panels into the access openings and into position overlying the channel means beneath the lower end portions of the wall panels; and a unitary canopy structure surmounting and fixedly positioned on said rear and side wall panels.
Claim 2
Dependent Claim
170 words
A modular elevator cab construction for assembly onto a platform of an elevator stile substantially from within the area of the cab, comprising: a rear wall panel and two side wall panels; complementary interengaging hanger means on the backsides of adjacent panels for assembling the two side wall panels in proper right-angular juxtaposition to the rear wall panel by vertical sliding engagement; anchoring means between said platform and the lower edges of said wall panels, including channel means embedded in the platform, bracket means secured in part to the backside of the wall panels, anchoring members for securing the bracket means to the channel means, and access openings through the wall panels at the lower end portions thereof for manipulating the anchoring members, the bracket means extending from the backside of the wall panels into the access openings and into position overlying the channel means beneath the lower end portions of the wall panels; and a unitary canopy structure surmounting and fixedly positioned on said rear and side wall panels.
Claim 3
Dependent Claim
42 words
The modular elevator cab construction of claim 1 wherein said anchoring means include securing means secured to the backsides of the wall panels, and access openings completely through the wall panels at the lower end portions thereof for manipulating the securing means.
Claim 4
Dependent Claim
27 words
The modular elevator cab construction of claim 1 wherein the canopy structure has a peripheral skirt that closely embraces the upper end portions of the wall panels.
Claim 5
Dependent Claim
95 words
A modular elevator cab construction for assembly onto a platform of an elevator stile substantially from within the area of the cab, comprising: a rear wall panel and two side wall panels; and anchoring means between said platform and the lower edges of said wall panels, including channel means embedded in the platform, bracket means secured in part to the backsides of the wall panels, anchoring members for securing the bracket means to the channel means, and access openings completely through the wall panels at the lower end portions thereof for manipulating the anchoring members.
Claim 6
Dependent Claim
95 words
A modular elevator cab construction for assembly onto a platform of an elevator stile substantially from within the area of the cab, comprising: a rear wall panel and two side wall panels; and anchoring means between said platform and the lower edges of said wall panels, including channel means embedded in the platform, bracket means secured in part to the backsides of the wall panels, anchoring members for securing the bracket means to the channel means, and access openings completely through the wall panels at the lower end portions thereof for manipulating the anchoring members.
Claim 7
Dependent Claim
31 words
The modular elevator cab construction of claim 4 wherein said bracket means extend from the backside of the wall panels into said access openings and into position overlying the channel means.
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) | 1991-10-25 | 1992-04-25 | 1992-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-25 | 1996-04-25 | 1996-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-25 | 2000-04-25 | 2000-10-25 | $7700.00 | Window Closed / Lapsed |