Patent US5255159A successfully refreshed from Google Patents.
US5255159A
Expired / Lapsed
US
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Circuit board spacer
Assignee: Honeywell Inc
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Filing: 1990-10-25
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Granted: 1993-10-19
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Expires: 2010-10-25
Abstract
Abstract A solder spacer device and method for use in positioning a grid pin array having a plurality of pins over a circuit board having a plurality of pin holes respectively receiving the pins. The spacer is pulled through a central opening in the circuit board after the pins are soldered in the holes to the circuit board. The spacer has a cylindrical body which is positioned in the central opening and has a plurality of radial legs having respective flexure portions for separating the pin grid array from the circuit board during soldering and for folding into the central opening during extraction through the central opening after the soldering is finished.
Inventors
- 👤 Douglas A. Seyk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:03
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/02; H05K7/10; H05K7/1053; H05K7/1076; H05K7/1084; B; B23; B23K; B23K1/00; B23K1/018; H05K3/00; H05K3/30; H05K3/306; H05K2201/00; H05K2201/09; H05K2201/09009; H05K2201/09072; H05K2201/10; H05K2201/10613; H05K2201/10621; H05K2201/10704; H05K2201/20; H05K2201/2036; H05K2203/00; H05K2203/02; H05K2203/0271; H05K3/32; H05K3/34; H05K3/3447
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
169 words
A circuit board spacer, for placement between a pin grid array with a plurality of pins and a circuit board with respective pin holes during a soldering of the pins at the pin holes to the circuit board and for placement in a central opening of the circuit board, comprising: a cylindrical body for insertion partly in the central opening and having an axis and an axial aperture and a radially outer surface and a radially inner surface and a first axial end face and a second axial end face; and a plurality of radial legs each having a radial leg portion which is connected to an axial leg portion that is connected to the second axial end face; wherein the radial leg portion has a hinge-like flexure portion for ease of bending the radial leg portion from a radial direction to an axial direction; and wherein the radially inner surface has a step portion having a bearing surface for bearing against a bearing surface of an extraction rod.
Claim 2
Dependent Claim
169 words
A circuit board spacer, for placement between a pin grid array with a plurality of pins and a circuit board with respective pin holes during a soldering of the pins at the pin holes to the circuit board and for placement in a central opening of the circuit board, comprising: a cylindrical body for insertion partly in the central opening and having an axis and an axial aperture and a radially outer surface and a radially inner surface and a first axial end face and a second axial end face; and a plurality of radial legs each having a radial leg portion which is connected to an axial leg portion that is connected to the second axial end face; wherein the radial leg portion has a hinge-like flexure portion for ease of bending the radial leg portion from a radial direction to an axial direction; and wherein the radially inner surface has a step portion having a bearing surface for bearing against a bearing surface of an extraction rod.
Claim 3
Dependent Claim
82 words
The spacer of claim 1, wherein the cylindrical body has a removable extraction rod having a handle portion and a top end face and a bottom end face and a recess portion having a bearing surface for engaging the spacer bearing surface upon insertion in the aperture and during an extraction of the spacer from the circuit board and pin grid array after the soldering of the pins, or for removal from the aperture before the soldering of the pins if assembled.
Claim 4
Dependent Claim
198 words
A circuit board assembly comprising: a pin grid array having an axis and having a plurality of pins; a circuit board coaxial with the pin grid array and having a plurality of holes respectively receiving the pins for soldering the pins at the pin holes to the circuit board and having a central opening coaxially disposed along the axis; and a standup spacer having a cylindrical body coaxially disposed in the central opening and having a plurality of radial legs each disposed between the pin grid array and the circuit board; wherein the cylindrical body has an aperture extending along the axis and a radially outer surface and a radially inner surface and a first axial end face and a second axial end face; and wherein the plurality of radial legs each has a radial leg portion and an axial leg portion, said axial leg portion connecting to the radial leg portion at a racially outer part thereof and connecting to the cylindrical body at a radially inner part thereof; and wherein each radial leg portion has a flexure portion; and wherein the radially inner surface of the cylindrical body has a step portion with a bearing surface.
Claim 5
Dependent Claim
198 words
A circuit board assembly comprising: a pin grid array having an axis and having a plurality of pins; a circuit board coaxial with the pin grid array and having a plurality of holes respectively receiving the pins for soldering the pins at the pin holes to the circuit board and having a central opening coaxially disposed along the axis; and a standup spacer having a cylindrical body coaxially disposed in the central opening and having a plurality of radial legs each disposed between the pin grid array and the circuit board; wherein the cylindrical body has an aperture extending along the axis and a radially outer surface and a radially inner surface and a first axial end face and a second axial end face; and wherein the plurality of radial legs each has a radial leg portion and an axial leg portion, said axial leg portion connecting to the radial leg portion at a racially outer part thereof and connecting to the cylindrical body at a radially inner part thereof; and wherein each radial leg portion has a flexure portion; and wherein the radially inner surface of the cylindrical body has a step portion with a bearing surface.
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) | 1996-10-18 | 1997-04-19 | 1997-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-10-18 | 2001-04-19 | 2001-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-10-18 | 2005-04-19 | 2005-10-19 | $7700.00 | Window Closed / Lapsed |