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US5436800A Expired / Lapsed US ⏱️ 0.0 years remaining

Zero impact module ejection system

Assignee: Hewlett Packard Development Co LP
•
Filing: 1993-07-16
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Granted: 1995-07-25
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Expires: 2013-07-16
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Abstract

Abstract A circuit board is ejected from an electrical chassis by inserting a pair of implements into corresponding pairs of apertures disposed on opposing side members of the electrical chassis. The end portions of the implements are engaged in a first pair of notches, each one being disposed on each of a pair of opposing edges of the circuit board provided within the electrical chassis, and a force is exerted on each of the first notches disposed on each of the pair of opposing edges of the circuit board with the pair of implements, to disengage the circuit board from a connector located at one end of the electrical chassis.

Inventors

  • 👤 David W. Maruska
  • 👤 Jeffrey M. Lewis

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 20:23
CPC Classifications
G; G06; G06F; G06F1/00; G06F1/16; G06F1/18; G06F1/183; G06F1/185; G06F1/184; G06F1/186; H; H05; H05K; H05K7/00; H05K7/14; H05K7/1422; H05K7/1427; H05K7/1429

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 126 words
An electrical chassis assembly comprising: a side member having a pair of apertures; and a circuit board disposed within said electrical chassis assembly with major surfaces of said circuit board disposed perpendicular to major surfaces of said side member, said circuit board having a pair of notches disposed on an edge of said circuit board, with each notch being aligned with a corresponding one of said apertures in said side member; wherein the notches and apertures are aligned such that a first notch of said pair of notches is positioned such that a portion of said first notch is directly accessible through a first aperture of said pair of apertures and a second notch of said pair of notches is positioned between said pair of apertures.
Claim 2
Dependent Claim 126 words
An electrical chassis assembly comprising: a side member having a pair of apertures; and a circuit board disposed within said electrical chassis assembly with major surfaces of said circuit board disposed perpendicular to major surfaces of said side member, said circuit board having a pair of notches disposed on an edge of said circuit board, with each notch being aligned with a corresponding one of said apertures in said side member; wherein the notches and apertures are aligned such that a first notch of said pair of notches is positioned such that a portion of said first notch is directly accessible through a first aperture of said pair of apertures and a second notch of said pair of notches is positioned between said pair of apertures.
Claim 3
Dependent Claim 51 words
The electrical chassis assembly of claim 1 further comprising: a second side member having a pair of apertures and wherein said circuit board has a second pair of notches disposed in a second, opposing edge of said circuit board and aligned with said pair of apertures of said second side member.
Claim 4
Dependent Claim 85 words
The electrical chassis assembly of claim 2 wherein said second pair of notches and said pair of apertures of said second side member are aligned such that a first notch of said second pair of notches is positioned such that a portion of said first notch is directly accessible through a first aperture of said pair of apertures of said second side member and a second notch of said second pair of notches is positioned between said pair of apertures of said second side member.
Claim 5
Dependent Claim 18 words
The electrical chassis assembly of claim 2 wherein each of said pair of apertures is rectangular in shape.

References Cited (Backward Citations)

US3582714A Cited
US4223973A Cited
US4301494A Cited
US5162979A Cited
US5148350A Cited
US5162980A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1998-07-24 1999-01-23 1999-07-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2002-07-24 2003-01-23 2003-07-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2006-07-24 2007-01-23 2007-07-25 $7700.00 Window Closed / Lapsed

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