Hand vacuum pump with linear piston actuation
AssigneeInnova Electronics Corporation
InventorJohn Protti
Life of this patent
Estimating the term…
Abstract
A hand-held vacuum pump has a piston for drawing a vacuum. The pump has a piston rod having a piston end and a distal end. The piston end is attached to the piston. The pump further has a pivot lever having a rod end, a handle end, and a pivot interface disposed therebetween. The rod end is rotatably attached to the distal end. The pump has a pivot support having a support interface. The support interface is cooperatively sized and configured with the pivot interface to translate the rod end of the pivot lever in substantially axial movement of the piston rod.
Claims18
A hand-held vacuum pump comprising:
- a piston for drawing a vacuum;
- a piston rod having a piston end and a distal end, the piston end being attached to the piston;
- a pivot lever having a rod end, a handle end, and a pivot interface disposed therebetween, the rod end being rotatably attached to the distal end of the piston rod;
- and
- a pivot support having a support interface, the support interface being cooperatively sized and configured with the pivot interface to translate the rod end of the pivot lever in substantially axial movement of the piston rod upon rotation of the pivot lever about the support interface in response to actuation of the handle end of the pivot lever, wherein the pivot interface has at least two stepped pivot members, and the support interface has at least two stepped support members sized and configured to sequentially cradle respective ones of the at least two stepped pivot members for rotating the pivot lever about the support interface.
A hand-held vacuum pump comprising:
- a piston for drawing a vacuum;
- a piston rod having a piston end and a distal end, the piston end being attached to the piston;
- a pivot lever having a rod end, a handle end, and a pivot interface disposed therebetween, the rod end being rotatably attached to the distal end of the piston rod wherein the pivot lever further includes a rotational stop sized and configured to prevent rotation of the pivot lever;
- and
- a pivot support having a support interface, the support interface being cooperatively sized and configured with the pivot interface to translate the rod end of the pivot lever in substantially axial movement of the piston rod upon rotation of the pivot lever about the support interface in response to actuation of the handle end of the pivot lever.
A hand-held vacuum pump comprising:
- a piston for drawing a vacuum;
- a piston rod having a piston end and a distal end, the piston end being attached to the piston;
- a pivot lever having a rod end, a handle end, and a pivot interface disposed therebetween, the rod end being rotatably attached to the distal end of the piston rod, the pivot interface having at least two stepped pivot members;
- and
- a pivot support having a support interface, the support interface having at least two stepped support members sized and configured to sequentially cradle respective ones of the at least two stepped pivot members for rotating the pivot lever about the support interface;
- and
- wherein the support interface and the pivot interface are cooperatively sized and configured to translate the rod end of the pivot lever in substantially axial movement of the piston rod upon rotation of the pivot lever about the support interface in response to actuation of the handle end of the pivot lever.
Dependencies are inferred from the claim text.