US3686808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door frame, sill and facia construction for elevator
Assignee: Individual
•
Filing: 1971-03-15
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Granted: 1972-08-29
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Expires: 1991-03-15
Abstract
Abstract Mounted for vertical adjustment upon an angle member previously installed in an elevator shaft below an entrance opening thereof is an upward-facing flanged channel sill support upon which rests an entrance door sill. Secured at right angles to the sill support in spaced parallel relationship and projecting outward therefrom into the entrance opening are two angle brackets, each with a plurality of horizontally spaced keyhole slots in its vertical flange. Detachably secured to each such vertical flange by headed screws seated in the keyhole slots is the lower end of a channel door jamb of an elevator entrance door frame. Tiltably insertably into a groove of L-shaped cross-section in the inner edge of the sill is the L-shaped upper end flange on an upper facia panel. Slidably mounted on the upper facia panel for vertical adjustment relatively thereto is a lower facia panel, the lower edge of which rests upon the upper edge of the unfolded Z-shaped hanger head of the elevator entrance structure of the floor immediately below.
Inventors
- 👤 Charles M Loomis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:30
CPC Classifications
B; B66; B66B; B66B13/00; B66B13/30; B66B13/301; B66B13/306
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
143 words
A door frame, sill and facia construction adapted to be secured to a building floor adjacent an elevator shaft entrance opening having a ledge disposed therebelow, said construction comprising a sill and jamb supporting structure including an elongated horizontal sill support overhanging the elevator shaft adjacent said opening, means on said sill support extending downward to the ledge, an elongated entrance door sill mounted on said sill support and secured thereto, a pair of bracket members secured to said sill support in spaced relationship to one another and extending therefrom into the entrance opening and adapted to be secured to the floor at locations spaced away from the shaft, a pair of vertical door frame jambs disposed in spaced parallel relationship and at their lower ends engaging said bracket members, and means for securing said lower ends of said jambs to said brackets.
Claim 2
Dependent Claim
143 words
A door frame, sill and facia construction adapted to be secured to a building floor adjacent an elevator shaft entrance opening having a ledge disposed therebelow, said construction comprising a sill and jamb supporting structure including an elongated horizontal sill support overhanging the elevator shaft adjacent said opening, means on said sill support extending downward to the ledge, an elongated entrance door sill mounted on said sill support and secured thereto, a pair of bracket members secured to said sill support in spaced relationship to one another and extending therefrom into the entrance opening and adapted to be secured to the floor at locations spaced away from the shaft, a pair of vertical door frame jambs disposed in spaced parallel relationship and at their lower ends engaging said bracket members, and means for securing said lower ends of said jambs to said brackets.
Claim 3
Dependent Claim
29 words
A door frame, sill and facia construction, according to claim 1, wherein facia means is secured to and depends from the inner edge of said sill into the shaft.
Claim 4
Dependent Claim
30 words
A door frame, sill and facia construction, according to claim 2, wherein said facia means includes a plurality of facia panel members secured to one another in vertically-sliding relationship therebetween.
Claim 5
Dependent Claim
37 words
A door frame, sill and facia construction, according to claim 2, wherein said inner edge of said sill has recess means therein, and wherein said facia means has facia attachment means projecting therefrom into said recess means.
Claim 6
Dependent Claim
46 words
A door frame, sill and facia construction, according to claim 4, wherein said recess means comprises a groove of approximately L-shaped cross-section, and wherein said facia attachment means comprises a flange of approximately L-shaped cross-section tiltably insertable in said L-Shaped cross-section groove in interlocking relationship therewith.
Claim 7
Dependent Claim
29 words
A door frame, sill and facia construction, according to claim 1, wherein said downward-extending means includes adjusting screws threaded downward through said sill support into engagement with the ledge.
Claim 8
Dependent Claim
29 words
A door frame, sill and facia construction, according to claim 6, wherein said downward-extending means also includes fasteners extending between and secured to said sill support and the ledge.
Claim 9
Dependent Claim
40 words
A door frame, sill and facia construction, according to claim 1, wherein said sill support comprises a channel member having a web with flanges extending upward therefrom at the opposite edges thereof, and wherein said sill rests on said flanges.
Claim 10
Dependent Claim
31 words
A door frame, sill and facia construction, according to claim 1, wherein fasteners extend between said bracket members and the lower end portions of said jamb members in interlocking relationship therewith.
Claim 11
Dependent Claim
43 words
A door frame, sill and facia construction, according to claim 9, wherein said fasteners are headed fasteners projecting from the lower end portions of said jamb members toward said bracket members, and wherein said bracket members have slots therein slidably receiving said fasteners.
Claim 12
Dependent Claim
38 words
A door frame, sill and facia construction, according to claim 10, wherein said slots comprise keyhole slots with enlarged portions receiving the heads of said fasteners and with narrower portions slidably receiving only the shanks of said fasteners.
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) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |