Squeeze-out dispenser

Patent metadata

Field	Value
Publication number	US-9878345-B2
Application number	US-61331109-A
Country	US
Kind code	B2
Filing date	Nov 5, 2009
Priority date	Nov 7, 2008
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

A squeeze-out dispenser for a container containing compounds is disclosed. In an embodiment, the squeeze-out dispenser features two plungers which are provided with a profile along their longitudinal extensions and a drive unit for the plungers with a drive meshing with the profile of the plungers. The profile of the plungers is formed by several through-holes spaced apart from one another at a uniform interval and passing through the plungers, into which through-holes engagements of the drive engage for advancing the plungers.

First claim

What is claimed is:

1. A squeeze-out dispenser for containers containing compounds, comprising:
a plunger which has a push rod along a longitudinal extension that selectively pushes a piston, wherein the push rod includes through-holes spaced apart from one another at a uniform interval along substantially an entire length of the push rod, and wherein the push rod is movable over the entire length of the push rod only in a single dimension; and
a drive, wherein the drive includes an engagement;
wherein the engagement of the drive engages with at least several of the through-holes of the push rod for selectively advancing the plunger.

2. The squeeze-out dispenser according to claim 1 , wherein the drive includes a gear wheel and wherein a tooth of the gear wheel is the engagement.

3. The squeeze-out dispenser according to claim 2 , wherein the tooth of the gear wheel has an involute contour.

4. The squeeze-out dispenser according to claim 1 , wherein the through-holes, in an opening cross-section, are rectangular.

5. The squeeze-out dispenser according to claim 1 , wherein a lateral edge of each through-hole includes a chamfer, wherein the lateral edge faces away from an advancement direction of the plunger and faces the drive.

6. The squeeze-out dispenser according to claim 1 , wherein at least two opposing lateral edges of each through-hole, which at least two opposing lateral edges face each other in the longitudinal extension of the plunger and face the drive, each include a chamfer.

7. The squeeze-out dispenser according to claim 1 , wherein the drive is a manually operable lever and wherein a free end of the lever is the engagement.

8. A squeeze-out dispenser for containers containing compounds, comprising:
a plunger which has a push rod along a longitudinal extension that selectively pushes a piston, wherein the push rod includes through-holes spaced apart from one another at a uniform interval along substantially an entire length of the push rod, and wherein the push rod is movable over the entire length of the push rod only in a single dimension; and
a means for driving the plunger, wherein the means for driving the plunger engages with at least several of the through-holes of the push rod for selectively advancing the plunger.

Assignees

• Hefele Christian
• Lederle Hans Peter
• Heiberger Franz
• Hilti Ag

Inventors

• Hefele Christian
• Lederle Hans Peter
• Heiberger Franz

Classifications

• B05C17/0103 Primary

  with electrically actuated piston or the like · CPC title

• F16N3/12

  Grease guns · CPC title

• B65D83/005

  Operations & Transport · mapped topic

• B05C17/00576

  characterised by the construction of a piston as pressure exerting means, or of the co-operating container · CPC title

• B65D83/768

  the piston or movable bottom being pulled upwards to dispense the contents · CPC title