US4388361A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Element for the insulation of the outer wall of a building
Assignee: Individual
•
Filing: 1980-12-31
•
Granted: 1983-06-14
•
Expires: 2000-12-31
Abstract
Abstract An insulating element for use in building walls comprises two rigid slabs preferably of brick, and interposed insulating material preferably of expanded polyurethane. The interposed insulation projects out along the periphery of the slabs and is embedded in a complementary recessed part in the insulation of the adjacent element, leaving an interval between the slabs which is filled with mortar in order to unite the slabs. Adjacent elements are pressed against each other during installation in order to reciprocally compress the insulation along the separation plane. The slabs are fed continuously, on edge, in spaced relation, between superposed conveyor belts, thereby to form a tunnel into which the polyurethane is fed and fills by expansion. The slabs are then cut apart by grinding and the insulation is cut along the midline of the slot thus produced, after which the elements are packaged.
Inventors
- 👤 Elio Vassalli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:31
CPC Classifications
B; B32; B32B; B32B9/00; B32B9/04; B32B9/046; B29; B29C; B29C44/00; B29C44/02; B29C44/12; B29C44/1228; B29C44/1233; B32B5/00; B32B5/18; B32B5/20; B32B9/002; E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0875; E04F13/0878; B29L; B29L2007/00; B29L2009/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24777
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
148 words
Element for insulation of the external walls of a building, comprising two rigid slabs, and expanded polyurethane insulating material between the slabs which unites the slabs; the insulating material between the two slabs projecting out from between both of the two rigid slabs of the element along one edge of the element and being recessed between both of the two rigid slabs of the element along the opposite edge of the element in such a manner as to leave an interspace on each side of the element between the periphery of the rigid slabs of one element and the periphery of the rigid slabs of the adjacent elements when the insulating material of said one element abuts the insulating material of said adjacent elements, so as to receive mortar to connect the rigid slabs together, said insulating material being laterally outwardly exposed to said mortar in said interspace.
Claim 2
Dependent Claim
148 words
Element for insulation of the external walls of a building, comprising two rigid slabs, and expanded polyurethane insulating material between the slabs which unites the slabs; the insulating material between the two slabs projecting out from between both of the two rigid slabs of the element along one edge of the element and being recessed between both of the two rigid slabs of the element along the opposite edge of the element in such a manner as to leave an interspace on each side of the element between the periphery of the rigid slabs of one element and the periphery of the rigid slabs of the adjacent elements when the insulating material of said one element abuts the insulating material of said adjacent elements, so as to receive mortar to connect the rigid slabs together, said insulating material being laterally outwardly exposed to said mortar in said interspace.
Claim 3
Dependent Claim
14 words
Element as in claim 1, in which the two slabs are of fired brick.
Claim 4
Dependent Claim
29 words
Element as in claim 1, in which at least one of the slabs is open on the inside, with vertical openings to allow for evaporation of moisture of condensation.
Claim 5
Dependent Claim
22 words
Element as in claim 1, in which each slab has cutouts on the inside to promote its anchorage with the insulating material.
Claim 6
Dependent Claim
95 words
Element as in claim 1, which is rectangular and has top and bottom edges and vertical side edges, said insulating material projecting beyond said rigid slabs along one of said top and bottom edges and being recessed between said slabs along the other of said top and bottom edges to form horizontal tongue and groove connections between adjacent said elements vertically aligned, said insulating material projecting out from between both of the two rigid slabs along each of said vertical side edges to form butt joints between the insulating material of horizontally aligned said elements.
References Cited (Backward Citations)
US1282090A
Cited
US1156753A
Cited
US1705338A
Cited
US1995264A
Cited
US3386218A
Cited
US3715417A
Cited
US3740909A
Cited
US4299069A
Cited
US4238544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-06-13 | 1986-12-13 | 1987-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-06-13 | 1990-12-13 | 1991-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-06-13 | 1994-12-13 | 1995-06-14 | $7700.00 | Window Closed / Lapsed |