Patent US2488897A successfully refreshed from Google Patents.
US4091068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of immobilizing a printed circuit board
Assignee: Motorola Solutions Inc
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Filing: 1976-05-13
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Granted: 1978-05-23
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Expires: 1996-05-13
Abstract
Abstract A hardenable material such as epoxy is placed between a circuit board edge portion and a recessed channel of a keeper member mounted on a base. The epoxy fills the space between the channel walls and the board edge portion and immobilizes the board relative to the base once it hardens. This eliminates the movement of the circuit board relative to the base. Release agent may be coated on the edge of the circuit board and the recessed channel walls of the support base so that when required, the printed circuit board can be readily and non-destructively removed from the base.
Inventors
- 👤 Joseph Walter Karas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:28
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/14; H05K7/1438; H05K7/1452; H05K7/1454; H05K3/00; H05K3/36; H05K3/366; H05K7/1417; H05K2201/00; H05K2201/10; H05K2201/10007; H05K2201/10189; H05K2201/10431; H05K2201/10606; H05K3/30; H05K3/301; H05K3/303; H05K3/305
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
171 words
A method of immobilizing a pluggable board when the board is plugged into a connector and a keeper mounted on a supporting base, said method comprising the steps of: providing a channel in the keeper for receiving an edge of the pluggable board, the channel having a recess with a wider cross-section intermediate the channel; providing a notch in the edge of the pluggable board situated so as to be generally within the channel in the keeper with the pluggable board properly inserted in the connector and keeper; placing a soft moldable and hardenable material into the channel of the keeper; inserting an edge portion of the board with the notch into the channel; pressing the board against the keeper so that the moldable and hardenable material is squeezed out and pressed to form fit and fill the gap between the notch of the circuit board and the support; and hardening said moldable material so that when it hardens it prevents any movement of the board relative to the supporting base.
Claim 2
Independent Claim
171 words
A method of immobilizing a pluggable board when the board is plugged into a connector and a keeper mounted on a supporting base, said method comprising the steps of: providing a channel in the keeper for receiving an edge of the pluggable board, the channel having a recess with a wider cross-section intermediate the channel; providing a notch in the edge of the pluggable board situated so as to be generally within the channel in the keeper with the pluggable board properly inserted in the connector and keeper; placing a soft moldable and hardenable material into the channel of the keeper; inserting an edge portion of the board with the notch into the channel; pressing the board against the keeper so that the moldable and hardenable material is squeezed out and pressed to form fit and fill the gap between the notch of the circuit board and the support; and hardening said moldable material so that when it hardens it prevents any movement of the board relative to the supporting base.
Claim 3
Dependent Claim
16 words
The method according to claim 1, for the moldable and hardenable material an epoxy is used.
Claim 4
Dependent Claim
38 words
The method according to claim 2 including the step of coating the channel walls and the notch and the areas adjoining the notch before the epoxy is placed in the channel to permit nondestructive dismounting of the board.
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) | 1981-05-22 | 1981-11-21 | 1982-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-22 | 1985-11-21 | 1986-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-22 | 1989-11-21 | 1990-05-23 | $7700.00 | Window Closed / Lapsed |