US5679020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stopper for use with ZIF PGA socket
Assignee: Hon Hai Precision Industry Co Ltd
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Filing: 1995-09-29
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Granted: 1997-10-21
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Expires: 2015-09-29
Abstract
Abstract A ZIF PGA socket (20) includes a base (22) and cover (24) slidably relatively moveable thereto, and a lever (40) sandwiched between the base (22) and the cover (24) wherein the lever (40) includes a handle (42) exposed and accessible in an exterior and a cam shaft (44) embedded within an upper half channel (30) formed in the cover (24) and a lower half channel (32) formed in the base (22). The cam shaft (44) includes a projection (50) integrally radially extending therefrom for engagement with an engagement surface (56) formed within an opening (54) in the base (22) whereby the lever (40) can be substantially stopped in a vertical position for allowing the socket (20) in an open status to load a PGA thereto in a ZIF manner. The handle (42) further includes a rib (60) formed proximate the front end thereof for engagement with a facing downward abutment surface (62) formed on the base (22).
Inventors
- 👤 Ching-ho Lai
- 👤 Chiung-Chuan Wang
- 👤 Robert G. McHugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:32
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/02; H05K7/10; H05K7/1007
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
171 words
A ZIF PGA socket comprising: a housing including a base and a cover; said base having a plurality of first passageways extending therein; said cover having a corresponding number of second passageways extending therein in alignment with the corresponding first passageways, respectively; a lever including a handle and a cam shaft joined adjacent a front end of the handle; and a first engagement surface provided on the shaft and a second engagement surface provided on the housing whereby when the handle is in a final vertical position, the first engagement surface and the second engagement surface are engaged with each other for stopping further forward rotation of the handle of the lever; wherein said lever further includes a rib at adjacent said front end of the handle for engagement with a downward abutment surface formed on the base whereby only applying an intentional force unto the handle of the lever may disengage said rib from said abutment surface for moving the handle of the lever back to an original horizontal position.
Claim 2
Dependent Claim
171 words
A ZIF PGA socket comprising: a housing including a base and a cover; said base having a plurality of first passageways extending therein; said cover having a corresponding number of second passageways extending therein in alignment with the corresponding first passageways, respectively; a lever including a handle and a cam shaft joined adjacent a front end of the handle; and a first engagement surface provided on the shaft and a second engagement surface provided on the housing whereby when the handle is in a final vertical position, the first engagement surface and the second engagement surface are engaged with each other for stopping further forward rotation of the handle of the lever; wherein said lever further includes a rib at adjacent said front end of the handle for engagement with a downward abutment surface formed on the base whereby only applying an intentional force unto the handle of the lever may disengage said rib from said abutment surface for moving the handle of the lever back to an original horizontal position.
Claim 3
Dependent Claim
24 words
The socket as defined in claim 1, wherein said first engagement surface is formed by a projection radially and outwardly extending from the shaft.
Claim 4
Dependent Claim
22 words
The socket as defined in claim 1, wherein said second engagement surface is formed by an opening extending downward in the base.
Claim 5
Dependent Claim
140 words
A ZIF PGA socket for mating with a PGA, comprising: a housing comprising a base and a cover; said base having a plurality of first passageways extending therein; said cover having a corresponding number of second passageways extending therein in alignment with the corresponding first passageways, respectively, the first passageways in the base cooperating with the second passageways in the cover for receiving a corresponding number of pins downward extending from said PGA; and a lever including a handle and a cam shaft joined adjacent a front end of the handle; wherein first means is formed on said front end of the handle for releasably abutting against second means of the base for retaining said handle of the lever in a final vertical position and said first means is a rib and said second means is a downward abutment surface.
Claim 6
Dependent Claim
140 words
A ZIF PGA socket for mating with a PGA, comprising: a housing comprising a base and a cover; said base having a plurality of first passageways extending therein; said cover having a corresponding number of second passageways extending therein in alignment with the corresponding first passageways, respectively, the first passageways in the base cooperating with the second passageways in the cover for receiving a corresponding number of pins downward extending from said PGA; and a lever including a handle and a cam shaft joined adjacent a front end of the handle; wherein first means is formed on said front end of the handle for releasably abutting against second means of the base for retaining said handle of the lever in a final vertical position and said first means is a rib and said second means is a downward abutment surface.
Claim 7
Dependent Claim
152 words
A ZIF PGA socket comprising: a housing composed of a base and a cover; said base having a plurality of first passageways extending therein; said cover having a corresponding number of said passageways extending therein in alignment with the corresponding first passageways, respectively; a lever including a handle and a cam shaft joined adjacent a front end of the handle; said cam shaft further including plural supportable round rotation segments and plural engagement segments; and first engagement means provided on the shaft and second engagement means provided on the housing whereby when the handle is in a final vertical position, said first engagement means and said second engagement means are engaged with each other for stopping further forward rotation of the handle of the lever; wherein said first engagement means includes lateral projections on the rotation segments of the cam shaft and said second engagement means includes openings formed in the base.
Claim 8
Dependent Claim
152 words
A ZIF PGA socket comprising: a housing composed of a base and a cover; said base having a plurality of first passageways extending therein; said cover having a corresponding number of said passageways extending therein in alignment with the corresponding first passageways, respectively; a lever including a handle and a cam shaft joined adjacent a front end of the handle; said cam shaft further including plural supportable round rotation segments and plural engagement segments; and first engagement means provided on the shaft and second engagement means provided on the housing whereby when the handle is in a final vertical position, said first engagement means and said second engagement means are engaged with each other for stopping further forward rotation of the handle of the lever; wherein said first engagement means includes lateral projections on the rotation segments of the cam shaft and said second engagement means includes openings formed in the base.
Claim 9
Dependent Claim
145 words
A ZIF PGA socket comprising: a housing including a base and a cover; said base having a plurality of first passageways extending therein; said cover having a corresponding number of second passageways extending therein in alignment with the corresponding first passageways, respectively; a lever including a handle and a cam shaft joined adjacent a front end of the handle; and a first engagement surface provided on the shaft and a second engagement surface provided on the housing whereby when the handle is in a final vertical position, the first engagement surface and the second engagement surface are engaged with each other for stopping further forward rotation of the handle of the lever; wherein said first engagement surface is formed by a projection radially and outwardly extending from the cam shaft and said second engagement surface is formed by an opening extending downward in the base.
Claim 10
Dependent Claim
145 words
A ZIF PGA socket comprising: a housing including a base and a cover; said base having a plurality of first passageways extending therein; said cover having a corresponding number of second passageways extending therein in alignment with the corresponding first passageways, respectively; a lever including a handle and a cam shaft joined adjacent a front end of the handle; and a first engagement surface provided on the shaft and a second engagement surface provided on the housing whereby when the handle is in a final vertical position, the first engagement surface and the second engagement surface are engaged with each other for stopping further forward rotation of the handle of the lever; wherein said first engagement surface is formed by a projection radially and outwardly extending from the cam shaft and said second engagement surface is formed by an opening extending downward in the base.
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) | 2000-10-20 | 2001-04-21 | 2001-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-10-20 | 2005-04-21 | 2005-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-10-20 | 2009-04-21 | 2009-10-21 | $7700.00 | Window Closed / Lapsed |