Universal spring tool
Assigneedbm Innovation, Inc.
InventorDean R. Molstad
Life of this patent
Estimating the term…
Abstract
A tool or device is comprised of a generally cylindrical plunger that is retained in a generally cylindrical body. A spring fits inside the body to spring-load the plunger by means of a jam nut or other tensioning device. The plunger has tapped mounting holes with a pilot hole on the compression end for attaching various standard or custom components or attachments. The opposite tension end has a threaded extension also used for attaching devices. The body has a smooth outside diameter with at least one flat running the entire length. Due to the close fit of the plunger and body, the plunger has an axial groove on it upper surface to allow air inside the device to escape for smooth actuation. An optional splitclamp block is provided as a means of mounting. Also available as an option is a retracting lock.
Claims23
A spring biased device comprising:
- a cylindrical body;
- a cylindrical plunger retained in the body, the plunger having a compression end and a tension end and at least one flat side;
- a jam nut retained on the plunger;
- a spring inside the body;
- an attachment attached to either the compression end or the tension end;
- and
- wherein the plunger has an axial groove on outer surface to allow air inside to escape.
A spring biased device comprising:
- a cylindrical body;
- a cylindrical plunger retained in the body, the plunger having a compression end and a tension end and at least one flat side;
- a jam nut retained on the plunger;
- a spring inside the body;
- at least one attachment attached to at least one of the compression end and the tension end;
- and
- further comprising a lock for preventing rotation of the plunger;
- and
- tangs for engaging flats of the body.
Dependencies are inferred from the claim text.