US5373419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lever mechanism
Assignee: McKechnie Specialist Products Ltd
•
Filing: 1993-09-10
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Granted: 1994-12-13
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Expires: 2013-09-10
Abstract
Abstract Disclosed is a lever mechanism for clamping a board to a housing. A support block is provided and is adapted to be attached to the board. A first lever, pivotally connected to the support block, is movable between first and second positions, and adapted to engage with the housing when in the first position and disengage from the housing when in the second position. A second lever is pivotally mounted on the first lever and adapted to hold the first lever in the first position by engagement with the support block. A spring is also provided for biasing the first lever towards the second position and also for biasing the second lever toward the position in which it engages with the support block.
Inventors
- 👤 Andrew C. W. Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:06
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/14; H05K7/1401; H05K7/1402; H05K7/1409
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
125 words
A lever mechanism for clamping a board to a housing, said lever mechanism comprising: a support block adapted to be attached to a board; a first lever pivotally connected to said support block and movable between first and second positions, said first lever being adapted to engage with said housing when in said first position and disengage from said housing when in said second position; a second lever pivotally mounted on said first lever and adapted, in one position, to hold said first lever in said first position by engagement with said support block; and, a spring for biasing said first lever towards said second position and also for biasing said second lever toward said one position, in which it engages with said support block.
Claim 2
Dependent Claim
125 words
A lever mechanism for clamping a board to a housing, said lever mechanism comprising: a support block adapted to be attached to a board; a first lever pivotally connected to said support block and movable between first and second positions, said first lever being adapted to engage with said housing when in said first position and disengage from said housing when in said second position; a second lever pivotally mounted on said first lever and adapted, in one position, to hold said first lever in said first position by engagement with said support block; and, a spring for biasing said first lever towards said second position and also for biasing said second lever toward said one position, in which it engages with said support block.
Claim 3
Dependent Claim
17 words
A mechanism according to claim 1, wherein said support block is adapted to hold a stud fastener.
Claim 4
Dependent Claim
18 words
A mechanism according to claim 1, wherein said spring acts to retain said support block on said board.
Claim 5
Dependent Claim
26 words
A mechanism according to claim 1, wherein said spring is made of electrically conductive material and provides an electrical connection between said board and said housing.
Claim 6
Dependent Claim
47 words
A mechanism according to claim 1, wherein said first lever comprises two interconnecting longitudinal halves, each of said halves having lugs on its inner surface, said lugs providing pivotable mountings for said first lever on said support block, and for said second lever on said first lever.
Claim 7
Dependent Claim
47 words
A mechanism according to claim 1, wherein said first lever comprises two interconnecting longitudinal halves, each of said halves having recesses on its inner surface, said recesses providing pivotable mountings for said first lever on said support block, and for said second lever on said first lever.
Claim 8
Dependent Claim
126 words
A board and board housing assembly comprising: a board; a housing; a lever mechanism, said lever mechanism comprising: a support block attached to said board; a first lever pivotally connected to said support block and movable between first and second positions, said first lever being adapted to engage with said housing when in said first position and disengage from said housing when in said second position; a second lever pivotally mounted on said first lever and adapted, in one position, to hold said first lever in said first position by engagement with said support block; and, a spring for biasing said first lever towards said second position and also for biasing said second lever toward said one position, in which it engages with said support block.
Claim 9
Dependent Claim
126 words
A board and board housing assembly comprising: a board; a housing; a lever mechanism, said lever mechanism comprising: a support block attached to said board; a first lever pivotally connected to said support block and movable between first and second positions, said first lever being adapted to engage with said housing when in said first position and disengage from said housing when in said second position; a second lever pivotally mounted on said first lever and adapted, in one position, to hold said first lever in said first position by engagement with said support block; and, a spring for biasing said first lever towards said second position and also for biasing said second lever toward said one position, in which it engages with said support block.
Claim 10
Dependent Claim
17 words
An assembly according to claim 7, wherein said support block is adapted to hold a stud fastener.
Claim 11
Dependent Claim
18 words
An assembly according to claim 7, wherein said spring acts to retain said support block on said board.
Claim 12
Dependent Claim
26 words
An assembly according to claim 7, wherein said spring is made of electrically conductive material and provides an electrical connection between said board and said housing.
Claim 13
Dependent Claim
47 words
An assembly according to claim 7, wherein said first lever comprises two interconnecting longitudinal halves, each of said halves having lugs on its inner surface, said lugs providing pivotal mountings for said first lever on said support block, and for said second lever on said first lever.
Claim 14
Dependent Claim
47 words
An assembly according to claim 7, wherein said first lever comprises two interconnecting longitudinal halves, each of said halves having recesses on its inner surface, said recesses providing pivotable mountings for said first lever on said support block, and for said second lever on said first lever.
References Cited (Backward Citations)
DE7724549U1
Cited
US4157583A
Cited
US4699594A
Cited
JPS6476798A
Cited
DE3732892A1
Cited
JPH01268098A
Cited
US4975073A
Cited
US5006951A
Cited
GB2231726A
Cited
JPH04188794A
Cited
US5293303A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-12-12 | 1998-06-13 | 1998-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-12-12 | 2002-06-13 | 2002-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-12-12 | 2006-06-13 | 2006-12-13 | $7700.00 | Window Closed / Lapsed |