Patent US3629912A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3629912A Expired / Lapsed US ⏱️ 0.0 years remaining

Clamp and method of making same

Assignee: Chemical Rubber Co
•
Filing: 1970-04-13
•
Granted: 1971-12-28
•
Expires: 1990-04-13
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A one piece, plastic clamp formable from extruded stock. The clamp comprises a pair of lever arms merged toward one end through an integral bight portion, to form a generally U-shaped member. Releasably locking fulcrum means are positioned between the free and merged ends of the lever arms. The releasably locking fulcrum extends the full width of the clamp. The cross section of the clamp through every plane perpendicular to the extrusion axis is identical in every essential respect.

Inventors

  • 👤 Edward M Klopp

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 12:36
CPC Classifications
B; B01; B01L; B01L9/00; B01L9/50; A; A47; A47H; A47H13/00; A47H13/01; D; D06; D06F; D06F55/00; G; G03; G03D; G03D13/00; G03D13/02; G03D13/08; G03D13/10; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44017; Y10T24/44641; Y10T24/44684; Y10T24/44744; Y10T24/44752; Y10T24/44769; Y10T24/44897

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 121 words
A one piece plastic clamp formable from extruded stock comprising a pair of longitudinally extending lever arms of finite width merged toward one end through an integral bight portion to form a generally U-shaped member, the longitudinal axes of said lever arms in the free state thereof converging outwardly in a direction away from said free ends, complementary connecting means formed integrally with and disposed intermediate the ends of said lever arms, each of said connecting means extending the full width of its lever arm and facing in the direction of said other lever arm, each of said complementary means being formed on axes which, in the free state of said lever arms, converge and intersect inwardly of said lever arms.
Claim 2
Dependent Claim 121 words
A one piece plastic clamp formable from extruded stock comprising a pair of longitudinally extending lever arms of finite width merged toward one end through an integral bight portion to form a generally U-shaped member, the longitudinal axes of said lever arms in the free state thereof converging outwardly in a direction away from said free ends, complementary connecting means formed integrally with and disposed intermediate the ends of said lever arms, each of said connecting means extending the full width of its lever arm and facing in the direction of said other lever arm, each of said complementary means being formed on axes which, in the free state of said lever arms, converge and intersect inwardly of said lever arms.
Claim 3
Dependent Claim 30 words
The clamp as defined in claim 1, wherein said integral bight portion comprises a resilient, curvilinear element bowed convexly in the direction of the free ends of said lever arms.
Claim 4
Dependent Claim 22 words
The clamp as defined in claim 2, wherein said curvilinear element comprises means defining a rest for a clamp supporting structural member.
Claim 5
Dependent Claim 47 words
The clamp as defined as claim 2, wherein said bight portion further comprises a second resilient, curvilinear element bowed convexly in the direction away form the free ends of said lever arms, said curvilinear elements complementing each other in forming a bight portion of generally orbicular configuration.
Claim 6
Dependent Claim 33 words
The clamp as defined in claim 1, further comprising means operative to releasably lock said opposed gripping surfaces against a parting force when said complementary connecting means are in registry with each other.
Claim 7
Dependent Claim 39 words
The clamp as defined in claim 1, wherein the merged end of one of said lever arms extends beyond said bight portion and means are provided on said extension for supporting said clamp with respect to a support member.
Claim 8
Dependent Claim 19 words
The clamp as defined in claim 1, further comprising means for releasably locking said lever arms against pivotal movement.
Claim 9
Dependent Claim 30 words
The clamp as defined in claim 1, wherein said integral bight portion comprises a resilient, curvilinear element bowed concavely in the direction of the free ends of said lever arms.
Claim 10
Dependent Claim 46 words
The clamp as defined in claim 1, further comprising at least one pair of cantilever leaf springs extending inwardly from the merged ends of said lever arms, the free ends of said leaf springs engaging each other when said complementary connecting meaNs are in locking registry.
Claim 11
Dependent Claim 109 words
A one piece clamp comprising a pair of cooperating arms having facing surfaces, said arms interconnecting at one end and terminating in opposed gripping surfaces at their other ends, pivot means formed integrally with said facing surfaces and disposed intermediate the ends of the said arms, said pivot means being operative to translate a bending force applied to said arms, between it and the interconnected ends of said arms, into relative movement between said gripping surfaces, the cross section of said clamp through every plane perpendicular to the plane of said facing surfaces being identical in every essential respect, and means for releasably locking said arms against pivotal movement.
Claim 12
Dependent Claim 109 words
A one piece clamp comprising a pair of cooperating arms having facing surfaces, said arms interconnecting at one end and terminating in opposed gripping surfaces at their other ends, pivot means formed integrally with said facing surfaces and disposed intermediate the ends of the said arms, said pivot means being operative to translate a bending force applied to said arms, between it and the interconnected ends of said arms, into relative movement between said gripping surfaces, the cross section of said clamp through every plane perpendicular to the plane of said facing surfaces being identical in every essential respect, and means for releasably locking said arms against pivotal movement.
Claim 13
Dependent Claim 116 words
A one piece clamp comprising a pair of cooperating arms having facing surfaces, said arms interconnecting at one end and terminating in opposed gripping surfaces at their other ends, pivot means formed integrally with said facing surfaces and disposed intermediate the ends of said arms, said pivot means being operative to translate a bending force applied to said arms, between it and the interconnected ends of said arms, into relative movement between said gripping surfaces, the cross section of said clamp through every plane perpendicular to the plane of said facing surfaces being identical in every essential respect, and at least one pair of cantilever leaf springs extending inwardly from the interconnected ends of said arms.
Claim 14
Dependent Claim 116 words
A one piece clamp comprising a pair of cooperating arms having facing surfaces, said arms interconnecting at one end and terminating in opposed gripping surfaces at their other ends, pivot means formed integrally with said facing surfaces and disposed intermediate the ends of said arms, said pivot means being operative to translate a bending force applied to said arms, between it and the interconnected ends of said arms, into relative movement between said gripping surfaces, the cross section of said clamp through every plane perpendicular to the plane of said facing surfaces being identical in every essential respect, and at least one pair of cantilever leaf springs extending inwardly from the interconnected ends of said arms.

References Cited (Backward Citations)

US104654A Cited
US2519987A Cited
US2933790A Cited
US2988314A Cited
US3043902A Cited
CH448953A Cited
US3526934A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-12-27 1975-06-28 1975-12-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-12-27 1979-06-28 1979-12-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-12-27 1983-06-28 1983-12-28 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag