Back to results
US 2021/0285474 A1Published application
Leveraged Spring Clamp and Related Methods
OwnerRichard Ned Steinbergerinventor
Life of this patent
Estimating the term…
Abstract
A spring clamp wherein a reduced effort is needed on the handle end as the engagement end is opened further. The spring clamp can include a clamping force adjustment means through the use of a spring pack, central rod and a folding adjuster. The spring clamp can also include low friction mounts at the ends of a spring pack to reduce user effort on the handle end.
Claims20
A spring clamp, which comprises:
- a first arm comprising a handle end opposite an engagement end;
- a second arm comprising a handle end opposite an engagement end;
- the first arm and the second arm rotatably fixed about a pivot point located between the handle end and engagement end of the first arm and the second arm;
- a spring pack operably connected to the first arm and the second arm, the spring pack comprising:
- a central rod located through the axial center of a coil spring;
- a fixed perch fixed to the central rod towards a first end;
- the central rod comprising a threaded portion between a second end and the first end;
- an adjustable perch in threaded communication with the central rod, so that the coil spring is positioned between the fixed perch and the adjustable perch and axially about the central rod;
- the threaded portion of the central rod and the adjustable perch configured to rotate relative to the coil spring;
- and
- an adjuster arm pivotably fixed to the second end of the central rod;
- wherein a critical distance is defined between the pivot point and a spring force vector of the spring pack and configured to exert at least one of:
- (i) a predetermined clamping force exerted between the engagement ends of the first arm and the second arm;
- and (ii) a predetermined opening force exerted on the handle ends of the first arm and the second arm;
- and
- wherein the first arm and the second arm are configured to house the spring pack between the first arm and the second arm when the spring clamp is in any position within its rotational limits.
13 more elements
A spring clamp, which comprises:
- a first arm comprising a handle end opposite an engagement end;
- a second arm comprising a handle end opposite an engagement end;
- the first arm and the second arm rotatably fixed about a pivot point located between the handle end and engagement end of the first arm and the second arm;
- a spring pack comprising a coil spring and operably connected to the first arm and the second arm through a contact between the spring pack and an angular relief in the first arm and an angular relief in the second arm;
- wherein a critical distance is defined between the pivot point and a spring force vector of the spring pack and configured to create at least one of:
- (i) a predetermined clamping force exerted between the engagement ends of the first arm and the second arm, and (ii) a predetermined opening force exerted on the handle ends of the first arm and the second arm;
- wherein the second arm further comprises a plurality of angular reliefs positioned at a plurality of critical distances;
- and
- wherein the first arm and the second arm are configured to house the spring pack between the first arm and the second arm when the spring clamp is in any position within its rotational limits.
6 more elements
Dependencies are inferred from the claim text.