US3928691A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced panels and method of constructing same
Assignee: Individual
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Filing: 1974-06-17
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Granted: 1975-12-23
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Expires: 1994-06-17
Abstract
Abstract Upper and lower edges of polyurethane core members are provided with semi-circular grooves which extend full length thereof and which are caused to encompass iron or steel reinforcing rods when upper edge of a lower core member is sealed to the lower edge of the next higher core member. Both sides of assembled core members are covered with one or more layers of glass-cloth-type sheet material adhesively secured thereto by an epoxy resin.
Inventors
- 👤 Richard A Knudson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:35
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/245; E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/20; E04C2/205; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/0278; B32B2607/00; Y; Y10; Y10T; Y10T428/00; Y10T428/17; Y10T428/18; Y10T428/19; Y10T428/192; Y10T428/197; Y10T428/24; Y10T428/24273
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
85 words
A REINFORCED PANEL, COMPRISING: A REINFORCING ROD; A PLURALITY OF CORE MEMBERS EACH HAVING EDGE PORTIONS PROVIDED WITH SEMI-CYLINDRICAL GROOVES GENERALLY CONFORMING TO THE SHAPE OF SEMI-CYCLINDRICAL PORTIONS OF SAID REINFORCING ROD, PAIRS OF SAID CORE MEMBERS ENCOMPASSING AND IN ESSENTIALLY CONTIGUOUS CONTACT WITH SAID REINFORCING ROD AND HAVING THEIR EDGE PORTIONS SEALED AND BONDED TOGETHER BY A SEALANT MATERIAL IN BUTTING RELATIONSHIP WITH EACH OTHER AND WITH SAI REINFORCING ROD; AND A SHEET OF MATERIAL ADHERED TO SAID CORE MEMBERS BY AN ADHERENT MATERIAL.
Claim 2
Dependent Claim
85 words
A REINFORCED PANEL, COMPRISING: A REINFORCING ROD; A PLURALITY OF CORE MEMBERS EACH HAVING EDGE PORTIONS PROVIDED WITH SEMI-CYLINDRICAL GROOVES GENERALLY CONFORMING TO THE SHAPE OF SEMI-CYCLINDRICAL PORTIONS OF SAID REINFORCING ROD, PAIRS OF SAID CORE MEMBERS ENCOMPASSING AND IN ESSENTIALLY CONTIGUOUS CONTACT WITH SAID REINFORCING ROD AND HAVING THEIR EDGE PORTIONS SEALED AND BONDED TOGETHER BY A SEALANT MATERIAL IN BUTTING RELATIONSHIP WITH EACH OTHER AND WITH SAI REINFORCING ROD; AND A SHEET OF MATERIAL ADHERED TO SAID CORE MEMBERS BY AN ADHERENT MATERIAL.
Claim 3
Dependent Claim
16 words
A panel as stated in claim 1 wherein said core members are a foamed polymeric material.
Claim 4
Dependent Claim
35 words
A panel as stated in claim 1 wherein said sheet material is a glass cloth and is disposed on both sides of said core members and wherein said adherent material is an epoxy resin cement.
Claim 5
Dependent Claim
13 words
A panel as stated in claim 1 wherein said reinforcing rods are steel.
Claim 6
Dependent Claim
15 words
A panel as stated in claim 1 wherein said sealant material is an epoxy cement.
Claim 7
Dependent Claim
20 words
A panel as stated in claim 1 wherein said reinforcing rods are parallel to the major axis of said panel.
Claim 8
Independent Claim
141 words
A method of constructing a reinforced panel comprising the steps of: providing a semi-cylindrical groove generally conforming to the shape of a reinforcing rod in the upper edge of a first core member; placing a first reinforcing rod in said groove on said first core member; providing semi-cylindrical grooves generally conforming to the shape of said reinforcing rod in the upper and lower edges of a second core member; covering said rod and said upper edge of said first core member with an adhesive; sealing the lower edge of said second core member to the upper edge of said first core member and bonding said reinforcing rod to said core members; placing a reinforcing rod on the upper edge of said second core member; and adding additional core members and reinforcing rods until a panel of a desired size is obtained.
Claim 9
Independent Claim
141 words
A method of constructing a reinforced panel comprising the steps of: providing a semi-cylindrical groove generally conforming to the shape of a reinforcing rod in the upper edge of a first core member; placing a first reinforcing rod in said groove on said first core member; providing semi-cylindrical grooves generally conforming to the shape of said reinforcing rod in the upper and lower edges of a second core member; covering said rod and said upper edge of said first core member with an adhesive; sealing the lower edge of said second core member to the upper edge of said first core member and bonding said reinforcing rod to said core members; placing a reinforcing rod on the upper edge of said second core member; and adding additional core members and reinforcing rods until a panel of a desired size is obtained.
Claim 10
Independent Claim
73 words
A METHOD OF CONSTRUCTING A REINFORCED PANEL HAVING A CURVED SURFACE COMPRISING THE STEPS OF: PROVIDING A MOLD DEFINING SAI CURVED SURFACE, SAID MOLD HAVING A LOWER EDGE AND AN UPPER EDGE; PLACING A FIRST CORE MEMBER ALONG SAI LOWER EDGE PROMOLD, SAID FIRST CORE MEMBER HAVING AN UPPER EDGE PROVIDED WITH A SEMI-CYLINDRICAL GROOVE GENERALLY CONFORMING TO THE SHAPE OF A REINFORCING ROD EXTENDING THE FULL LENGHT OF SAI FIRST CORE MEMBER;
Claim 11
Independent Claim
73 words
A METHOD OF CONSTRUCTING A REINFORCED PANEL HAVING A CURVED SURFACE COMPRISING THE STEPS OF: PROVIDING A MOLD DEFINING SAI CURVED SURFACE, SAID MOLD HAVING A LOWER EDGE AND AN UPPER EDGE; PLACING A FIRST CORE MEMBER ALONG SAI LOWER EDGE PROMOLD, SAID FIRST CORE MEMBER HAVING AN UPPER EDGE PROVIDED WITH A SEMI-CYLINDRICAL GROOVE GENERALLY CONFORMING TO THE SHAPE OF A REINFORCING ROD EXTENDING THE FULL LENGHT OF SAI FIRST CORE MEMBER;
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) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |