US4373304A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prefabricated building units
Assignee: Individual
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Filing: 1980-09-16
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Granted: 1983-02-15
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Expires: 2000-09-16
Abstract
Abstract Prefabricated building units for constructing a small building such as a caravan annexe include a mounting rail which may be supported at roof height, for example on a caravan side, and a number of rectangular roofing panels, each having across its head an attachment piece releasably engageable pivotally with the mounting rail when the roofing panel is at an angle to horizontal greater than the pitch of the roof to be installed, sealing means being brought into effect when the roofing panel is raised pivotally to the required pitch. The units include rectangular wall panels each with an attachment piece across its head engageable, as set out, with a mounting rail across the foot of each roofing panel. Opposite sides of each roofing panel and wall panel have respectively, a weather capping, and a weather flange engageable in the weather capping of an adjacent like panel.
Inventors
- 👤 Ronald W. Howitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:26
CPC Classifications
E; E04; E04B; E04B7/00; E04B7/02; E04B7/06; E04B1/00; E04B1/0046
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
195 words
Prefabricated building units including: a mounting rail, means for supporting the mounting rail substantially horizontally at roof height, a plurality of substantially rectangular roofing panels, an engagement piece across the head of each roofing panel capable, when the roof panel is at an angle to horizontal greater than the pitch of the roof to be installed, of being releasably engaged pivotally with the mounting rail, and sealing means which, when the roofing panel is raised pivotally to the said pitch, automatically effects a seal between the mounting rail and the engagement piece; wherein: the mounting rail and the engagement piece are formed with hooked members releasably inter-engageable pivotally, the mounting rail includes a flange with an underside curved in cross-section, the attachment piece includes a flange with a normally upper surface so curved in cross-section that when the roof panel is raised pivotally to the said pitch it moves closely under the curved underside of the mounting rail flange, and the sealing means includes a sealing strip which, when the roof panel is raised pivotally to the said pitch, is brought between the curved surfaces of the mounting rail flange and the attachment piece flange.
Claim 2
Dependent Claim
195 words
Prefabricated building units including: a mounting rail, means for supporting the mounting rail substantially horizontally at roof height, a plurality of substantially rectangular roofing panels, an engagement piece across the head of each roofing panel capable, when the roof panel is at an angle to horizontal greater than the pitch of the roof to be installed, of being releasably engaged pivotally with the mounting rail, and sealing means which, when the roofing panel is raised pivotally to the said pitch, automatically effects a seal between the mounting rail and the engagement piece; wherein: the mounting rail and the engagement piece are formed with hooked members releasably inter-engageable pivotally, the mounting rail includes a flange with an underside curved in cross-section, the attachment piece includes a flange with a normally upper surface so curved in cross-section that when the roof panel is raised pivotally to the said pitch it moves closely under the curved underside of the mounting rail flange, and the sealing means includes a sealing strip which, when the roof panel is raised pivotally to the said pitch, is brought between the curved surfaces of the mounting rail flange and the attachment piece flange.
Claim 3
Dependent Claim
29 words
Prefabricated building units according to claim 1 wherein: stop means are provided for preventing pivotal movement of the engagement piece beyond the said pitch, relative to the mounting rail.
Claim 4
Dependent Claim
46 words
Prefabricated building units according to claim 1 wherein: each of the roofing panels has along one side an upwardly extending weather capping of inverted channel form and along its other side an upwardly extending weather flange engageable in the weather capping of an adjacent roofing panel.
Claim 5
Dependent Claim
99 words
Prefabricated building units according to claim 1 including a plurality of substantially rectangular wall panels, and wherein: each of the roofing panels has across its foot a mounting rail, and each of the wall panels has across its head an engagement piece capable, when the wall panel is at an angle to vertical, of being releasably engaged pivotally with the mounting rail on the roofing panel, and sealing means which, when the wall panel is moved pivotally to vertical, automatically effects a seal between the mounting rail of the roofing panel and the engagement piece of the wall panel.
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) | 1986-02-14 | 1986-08-16 | 1987-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-14 | 1990-08-16 | 1991-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-14 | 1994-08-16 | 1995-02-15 | $7700.00 | Window Closed / Lapsed |