US3749432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double-walled partition and partition elements
Assignee: Individual
•
Filing: 1972-05-03
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Granted: 1973-07-31
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Expires: 1992-05-03
Abstract
Abstract The invention pertains to partitions comprising a strengthening structure consisting of an assembly of uprights and crosspieces made of extruded box-like sections of metal or a light alloy. The spaces defined by said assembly are provided with opaque, translucent or transparent panels in any suitable material.
Inventors
- 👤 L Janssen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:24
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/76; E04B2/766; F; F16; F16B; F16B7/00; F16B7/04; F16B7/044; F16B7/0446; F16B7/0453; Y; Y10; Y10T; Y10T403/00; Y10T403/55; Y10T403/70; Y10T403/7005
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
118 words
A double-walled partition, characterized in that it comprises a strengthening structure formed by uprights and crosspieces consisting of extruded box-like sections generally divided into three compartments, the two extreme compartments being longitudinally opened, while the uprights and the crosspieces are connected through a lock having a perforated body and forming a housing for a V-shaped spring blade and a rotating and removable stop on which bears one of the legs of the said spring blades, the said stop bearing itself on the section which it engages, the partition being completed by filling panels maintained in their positions by butt straps made integral with the said strengthening structure through inserts of a material forming a thermal and sound insulation.
Claim 2
Dependent Claim
118 words
A double-walled partition, characterized in that it comprises a strengthening structure formed by uprights and crosspieces consisting of extruded box-like sections generally divided into three compartments, the two extreme compartments being longitudinally opened, while the uprights and the crosspieces are connected through a lock having a perforated body and forming a housing for a V-shaped spring blade and a rotating and removable stop on which bears one of the legs of the said spring blades, the said stop bearing itself on the section which it engages, the partition being completed by filling panels maintained in their positions by butt straps made integral with the said strengthening structure through inserts of a material forming a thermal and sound insulation.
Claim 3
Dependent Claim
30 words
A partition according to claim 1, characterized in that the box-like sections forming the uprights and the crosspieces have two longitudinal catching ribs on the two outer solid faces thereof.
Claim 4
Dependent Claim
30 words
A partition according to claim 1, characterized in that, in the compartment of the section forming a crosspiece, are provided two pairs of inner parallel ribs for guiding the lock.
Claim 5
Dependent Claim
52 words
A partition according to claim 1, characterized in that the lock comprises a body under the form of a frame forwardly extended by a head outlining two large notches with the corresponding portions of the said frame, the said head having a cross rib in the central portion of its front face.
Claim 6
Dependent Claim
44 words
A partition according to claim 4, characterized in that the head of the lock has, on its back faces, a shoulder the width of which is substantially equal to the thickness of the flanges of the opened compartments of the section forming the uprights.
Claim 7
Dependent Claim
24 words
A partition according to claim 4, characterized in that the lock has everywhere a constant thickness and is produced by severing an extruded section.
Claim 8
Dependent Claim
67 words
A partition according to claim 1, characterized in that the spring element comprises a substantially U-shaped steel blade the overall height of which is equal or slightly lower than the height of the perforation of the lock, whereas the width thereof is larger than the thickness of the said lock, but slightly smaller than the width of the closed central compartment of the section forming the crosspiece.
Claim 9
Dependent Claim
44 words
A partition according to claim 1, characterized in that the rotating and removable stop comprises a length of a cylindrical bar having a large flat portion, the length of the said stop being slightly smaller than the width of the section forming the stop.
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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |