Patent US4703395A successfully refreshed from Google Patents.
US4703395A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Breadboard panel construction for electronic circuitry
Assignee: CORRA-BOARD PRODUCTS Co A CORP OF PA
•
Filing: 1986-09-26
•
Granted: 1987-10-27
•
Expires: 2006-09-26
Abstract
Abstract This invention relates generally to an electronic circuit breadboard assembly having a particular novel layered construction. In place of a conventional solid chipboard laminated construction, an undulated midstratum layer is utilized in such manner that air cells or pockets are formed within the structure. An overlayer and an underlayer are adhesively applied to the undulated midstratum layer. The invention results in a breadboard assembly which may be much more economically manufactured while yielding superior end product strength and durability. The invention has widespread utility in the electronics assembly field as a superior substitute for the currently used solid laminated chipboard design.
Inventors
- 👤 Thomas L. Cline
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:17
CPC Classifications
H; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0313; H05K1/0353; H05K1/036; H05K1/0271; H05K1/0272; H05K2201/00; H05K2201/02; H05K2201/0203; H05K2201/0242; H05K2201/0251; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149; Y10T428/24628; Y10T428/24669; Y10T428/24694; Y10T428/25; Y10T428/253; Y10T428/31504; Y10T428/31971; Y10T428/31989
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
296 words
A breadboard panel construction (50) in combination with an electrical circuit component (90) having plural legs (91, 92) depending therefrom, said breadboard panel construction (50) having plural aperture means (80) formed therein for receipt of said circuit component legs (91,92), said breadboard panel (50) having an overlayer (51) comprised of chipboard material having relatively shorter fiber lengths (60) contained therein, said breadboard panel having an underlayer (52) comprised of chipboard material having relatively shorter fiber lengths (60) contained therein, said breadboard panel further having an undulating midstratum layer (53) between said overlayer (51) and underlayer (52), wherein upper undulation portions of said midstratum layer (53) are secured to said overlayer (51) by adhesive means (58), and wherein lower undulation portions of said midstratum layer (53) are secured to said underlayer (52) by adhesive means (59), said breadboard panel construction providing means wherein air cells (55) are formed internally thereof such that a given breadboard panel thickness may be maintained while reducing the number of chipboard layers required for construction, wherein said undulating midstratum layer (53) has relatively longer fiber lengths (70) contained therein as compared to the relatively shorter fiber lengths (60) contained in said overlayer (51) and said underlayer (52), wherein the average fiber length (60) of said overlayer (51) and said underlayer (52) is two millimeters of less, wherein the average fiber length (70) of said undulating midstratum layer (53) is five millimeters or more, wherein said air cells (55) are formed between said overlayer (51) and said underlayer (52) by way of said undulating midstratum layer (53) such that the overall weight of a panel (50) is reduced while improving panel strength via the spring-like effect of said midstratum layer and by the relatively longer fiber lengths (70) contained in said midstratum layer.
Claim 2
Dependent Claim
296 words
A breadboard panel construction (50) in combination with an electrical circuit component (90) having plural legs (91, 92) depending therefrom, said breadboard panel construction (50) having plural aperture means (80) formed therein for receipt of said circuit component legs (91,92), said breadboard panel (50) having an overlayer (51) comprised of chipboard material having relatively shorter fiber lengths (60) contained therein, said breadboard panel having an underlayer (52) comprised of chipboard material having relatively shorter fiber lengths (60) contained therein, said breadboard panel further having an undulating midstratum layer (53) between said overlayer (51) and underlayer (52), wherein upper undulation portions of said midstratum layer (53) are secured to said overlayer (51) by adhesive means (58), and wherein lower undulation portions of said midstratum layer (53) are secured to said underlayer (52) by adhesive means (59), said breadboard panel construction providing means wherein air cells (55) are formed internally thereof such that a given breadboard panel thickness may be maintained while reducing the number of chipboard layers required for construction, wherein said undulating midstratum layer (53) has relatively longer fiber lengths (70) contained therein as compared to the relatively shorter fiber lengths (60) contained in said overlayer (51) and said underlayer (52), wherein the average fiber length (60) of said overlayer (51) and said underlayer (52) is two millimeters of less, wherein the average fiber length (70) of said undulating midstratum layer (53) is five millimeters or more, wherein said air cells (55) are formed between said overlayer (51) and said underlayer (52) by way of said undulating midstratum layer (53) such that the overall weight of a panel (50) is reduced while improving panel strength via the spring-like effect of said midstratum layer and by the relatively longer fiber lengths (70) contained in said midstratum layer.
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) | 1990-10-26 | 1991-04-27 | 1991-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-26 | 1995-04-27 | 1995-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-26 | 1999-04-27 | 1999-10-27 | $7700.00 | Window Closed / Lapsed |