Patent US4958865A successfully refreshed from Google Patents.
US4958865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamping system
Assignee: Individual
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Filing: 1988-08-18
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Granted: 1990-09-25
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Expires: 2008-08-18
Abstract
Abstract There is disclsed an improved clamping system for releaseably securing two external members (30) and (40) each to the other. The improved clamping system includes a hook member (3) which is fixedly secured to external member (40) and a chassis mechanism (2) which is fixedly secured to external member (30). The chassis mechanism (2) includes a U-shaped supporting frame (21) having a spring (22) passing therethrough. A clamping mechanism (1) is provided which includes a rotative displacement member (12) having an eccentric groove hole (124) formed in a lower disk member (121). A bridge plate member (13) having a central opening (131) encloses and provides a linear restraint for a sliding plate member (14) which includes a slot (141) passing therethrough. An insertion pin (15) passes through the slot (141), the central opening (131) and is insertable within the groove hole (124). Rotation of the rotative displacement member (12) provides for a responsive linear reversible displacement of the sliding plate member (14) for allowing a hooked end (145) to grasp onto the curved end of the hook member (3). In this manner, there is provided an economical, easily manufacturable, one-piece improved clamping system.
Inventors
- 👤 Jin J. Cheng
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:49
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/10; E05C19/105; Y; Y10; Y10T; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/45471; Y10T24/45482; Y10T292/00; Y10T292/08; Y10T292/0911; Y10T292/0913; Y10T292/0914; Y10T292/0915; Y10T292/0917
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
306 words
An improved clamping system for releaseably securing two external members each to the other, comprising: (a) a hook member fixedly secured to one of said external members; (b) chassis means fixedly secured to the other of said external members, said chasis means including a U-shaped supporting frame and a spring member extending through said supporting frame; (c) means for clamping each of said external members to the other, said clamping means including a rotative displacement member having a disk shaped lower portion member, said disk member having a downwardly open horizontal groove formed therein for insertion of opposing ear members of a butterfly shaped operating plate member, an elongated spring member is positionally located substantially entirely within said horizontal groove and being compressively mounted on said opposing ear members for providing a biasing foce on said opposing ear members for positioning said butterfly operating plate member, said disk member being divided by said groove into a first section having a concavely shaped recess and a second section having an opening formed therethrough, said opening formed in said second section being located eccentric to a rotational axis of said rotative displacement member, said clamping means further including a bridge plate member having a central opening and a curved bottom wall for passing over one arm of said chassis spring member, said bridge plate member being in sliding engagement with a sliding plate member having a curved end portion for engaging said hook member and a slot formed through said sliding plate member, said slot, central opening, and opening formed in said second section of said disk member being vertically aligned for insert therethrough of an insertion pin member, said sliding plate member further including a U-shaped opening defining a spring tongue having a raised portion for removable insert into said concavely shaped recess in said disk member.
Claim 2
Dependent Claim
306 words
An improved clamping system for releaseably securing two external members each to the other, comprising: (a) a hook member fixedly secured to one of said external members; (b) chassis means fixedly secured to the other of said external members, said chasis means including a U-shaped supporting frame and a spring member extending through said supporting frame; (c) means for clamping each of said external members to the other, said clamping means including a rotative displacement member having a disk shaped lower portion member, said disk member having a downwardly open horizontal groove formed therein for insertion of opposing ear members of a butterfly shaped operating plate member, an elongated spring member is positionally located substantially entirely within said horizontal groove and being compressively mounted on said opposing ear members for providing a biasing foce on said opposing ear members for positioning said butterfly operating plate member, said disk member being divided by said groove into a first section having a concavely shaped recess and a second section having an opening formed therethrough, said opening formed in said second section being located eccentric to a rotational axis of said rotative displacement member, said clamping means further including a bridge plate member having a central opening and a curved bottom wall for passing over one arm of said chassis spring member, said bridge plate member being in sliding engagement with a sliding plate member having a curved end portion for engaging said hook member and a slot formed through said sliding plate member, said slot, central opening, and opening formed in said second section of said disk member being vertically aligned for insert therethrough of an insertion pin member, said sliding plate member further including a U-shaped opening defining a spring tongue having a raised portion for removable insert into said concavely shaped recess in said disk member.
Claim 3
Dependent Claim
26 words
The improved clamping system as recited in claim 1 where rotation of said rotative displacement member provides a responsive linear displacement of said sliding plate member.
Claim 4
Dependent Claim
33 words
The improved clamping system as recited in claim 2 where said clamping means is rotatively displaceable in a plane substantially normal to a plane defining said hook member and chassis means mounting surfaces.
Claim 5
Dependent Claim
19 words
The improved clamping system as recited in claim 1 where said clamping means is formed as an integral structure.
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) | 1993-09-24 | 1994-03-26 | 1994-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-24 | 1998-03-26 | 1998-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-24 | 2002-03-26 | 2002-09-25 | $7700.00 | Window Closed / Lapsed |