US5338133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lever clamp mechanism
Assignee: Individual
•
Filing: 1993-03-05
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Granted: 1994-08-16
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Expires: 2013-03-05
Abstract
Abstract A lever operated clamping mechanism for adjustably engaging and locking in position structural members comprising two shoulder bolts and a disk spring for attaching and slidably guiding a slotted structure member relative to a fixed support structure. A threaded lever engages one of the shoulder bolts for frictionally locking the position of the structural member relative to the support structure. The device acts as a positional clutch permitting substantially firm frictional engagement of structural members when the lever is in one position and firm yet slidable engagement of the structural members when the lever is in another position.
Inventors
- 👤 Lino E. Tornero
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:19
CPC Classifications
F; F16; F16B; F16B12/00; F16B12/10; F16B12/28; F16B12/34; A; A47; A47C; A47C1/00; A47C1/02; A47C1/022; A47C1/03; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/59; Y10T403/60; Y10T403/70; Y10T403/7062
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
127 words
A clamp mechanism comprising: a structural member, said structural member defining an elongated slot, a fixed component, a first shoulder bolt, said shoulder bolt comprising a pair of threaded ends, one of said ends comprising standard threads and the other of said ends comprising fast advance threads, said first shoulder bolt extending through said elongated slot of said structural member and attached to said fixed component, a rotatable lever arm, said lever arm threadly attached to said first shoulder bolt by said fast advance threads whereby rotation of said lever arm in a first direction tightens said structural member against said fixed component and rotation of said lever arm in the opposite direction loosens said structural member allowing said structural member to slide along said fixed component.
Claim 2
Dependent Claim
127 words
A clamp mechanism comprising: a structural member, said structural member defining an elongated slot, a fixed component, a first shoulder bolt, said shoulder bolt comprising a pair of threaded ends, one of said ends comprising standard threads and the other of said ends comprising fast advance threads, said first shoulder bolt extending through said elongated slot of said structural member and attached to said fixed component, a rotatable lever arm, said lever arm threadly attached to said first shoulder bolt by said fast advance threads whereby rotation of said lever arm in a first direction tightens said structural member against said fixed component and rotation of said lever arm in the opposite direction loosens said structural member allowing said structural member to slide along said fixed component.
Claim 3
Dependent Claim
38 words
The clamp mechanism of claim 1 and including a second shoulder bolt, said second shoulder bolt attached at one end to said fixed component and extending through said elongated slot of said structural member for slidable contact therewith.
Claim 4
Dependent Claim
22 words
The clamp mechanism of claim 2 and including a spring, said spring positioned on said second shoulder bolt against said structural member.
Claim 5
Dependent Claim
14 words
The clamp mechanism of claim 2 wherein said lever arm defines a c-shaped end.
Claim 6
Dependent Claim
25 words
The clamp mechanism of claim 4 wherein said c-shaped end is positioned proximate said second shoulder bolt to terminate rotational movement of said lever arm.
Claim 7
Dependent Claim
12 words
The clamp mechanism of claim 3 wherein said spring comprises a washer.
Claim 8
Dependent Claim
31 words
The clamp mechanism of claim 2 wherein said lever arm comprises a pair of nibs, said nibs positioned proximate said second shoulder bolt to terminate rotational movement of said lever arm.
Claim 9
Dependent Claim
166 words
A clamp mechanism for positionally adjusting and releasably locking a structural member having a slot in a plurality of positions relative to a fixed component comprising: a. a first shoulder bolt in sliding contact with said slot of said structural member, said first shoulder bolt secured to said fixed component, b. a second shoulder bolt, said second shoulder bolt in sliding contact with said slot of said structural member, said second shoulder bolt secured to said fixed component spatially from said first shoulder bolt, c. a rotatable lever arm, said lever arm threadably attached to said first shoulder bolt, said lever arm comprising two nibs, said nibs disposed to contact said second shoulder bolt to limit the angular displacement as said lever arm rotates whereby rotation of said lever arm in a first direction tightens said structural member against said fixed component and rotation of said lever arm in the opposite direction loosens said structural member, allowing said structural member to slide along said fixed component.
Claim 10
Dependent Claim
166 words
A clamp mechanism for positionally adjusting and releasably locking a structural member having a slot in a plurality of positions relative to a fixed component comprising: a. a first shoulder bolt in sliding contact with said slot of said structural member, said first shoulder bolt secured to said fixed component, b. a second shoulder bolt, said second shoulder bolt in sliding contact with said slot of said structural member, said second shoulder bolt secured to said fixed component spatially from said first shoulder bolt, c. a rotatable lever arm, said lever arm threadably attached to said first shoulder bolt, said lever arm comprising two nibs, said nibs disposed to contact said second shoulder bolt to limit the angular displacement as said lever arm rotates whereby rotation of said lever arm in a first direction tightens said structural member against said fixed component and rotation of said lever arm in the opposite direction loosens said structural member, allowing said structural member to slide along said fixed component.
Claim 11
Dependent Claim
22 words
The mechanism according to claim 8 and including a spring, said spring positioned on said second shoulder bolt against said structural member.
Claim 12
Dependent Claim
16 words
The mechanism according to claim 8 wherein said first shoulder bolt comprises a fast advance thread.
Claim 13
Dependent Claim
97 words
A clamp mechanism comprising: a structural member, said structural member defining an elongated slot, a fixed component, a first shoulder member, said first shoulder member extending through said elongated slot and attached at one end to said fixed component, a second shoulder member, said second shoulder member extending through said elongated slot and attached at one end to said fixed component, and a rotatable lever arm, said lever arm attached to said first shoulder member, said lever arm comprising a nib, said nib for contacting said second shoulder member to limit rotational movement of said lever arm.
Claim 14
Dependent Claim
97 words
A clamp mechanism comprising: a structural member, said structural member defining an elongated slot, a fixed component, a first shoulder member, said first shoulder member extending through said elongated slot and attached at one end to said fixed component, a second shoulder member, said second shoulder member extending through said elongated slot and attached at one end to said fixed component, and a rotatable lever arm, said lever arm attached to said first shoulder member, said lever arm comprising a nib, said nib for contacting said second shoulder member to limit rotational movement of said lever arm.
Claim 15
Dependent Claim
25 words
The clamp mechanism according to claim 11 wherein said first shoulder member comprises fast advance threads, said lever arm attached to said fast advance threads.
Claim 16
Dependent Claim
29 words
The clamp mechanism of claim 12 wherein said first shoulder member also comprises standard threads, said standard threads located on said shoulder member end opposite said fast advance threads.
Claim 17
Dependent Claim
32 words
The clamp mechanism of claim 11 wherein said lever arm also comprises a second nib, said second nib for contacting said second shoulder member to limit rotational movement of said lever arm.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-08-15 | 1998-02-14 | 1998-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-08-15 | 2002-02-14 | 2002-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-08-15 | 2006-02-14 | 2006-08-16 | $7700.00 | Window Closed / Lapsed |