US 11,691,174 B2Granted

Caulking gun

AssigneeAltachem NV

InventorsJean-Marie Poppe, Niels Vanlerberghe, Jonathan Callens

Life of this patent

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Abstract

A caulking gun for dispensing material includes a stock, a cartridge keep, a push rod longitudinally moveably mounted in the stock with one end having a plunger engaging a cartridge piston in the cartridge keep, a catch on the rod, a trigger coupled to the catch via an axle and pivoting about a pivot point, and a device for varying thrust output exerted on the rod when pressing the trigger for a given strength exerted on the trigger that allows axle displacement between at least first and second positions. The trigger has an upper part with a trigger bridge with two long holes. The thrust output varying device includes a ratio bridge element put over the trigger bridge and trigger and linked to the trigger bridge via the axle traversing the holes. By displacing the axle either between fixed values or continuously and the thrust output can be varied between fixed values or continuously.

Claims6

Dependent claims

A caulking gun for dispensing material comprising

a stock (1),
a cartridge keep (2),
a push rod (3) longitudinally moveably mounted in the stock (1) provided at one end of the rod with a plunger (4) which engages a piston of a cartridge placed in the cartridge keep (2),
a catch member placed on the push rod (3),
a trigger (6) coupled to the catch member via an axle (15) and pivoting about a pivot point (7),
means for varying a thrust output exerted on the push rod (3) when pressing the trigger (6) for a given strength exerted on the trigger (6), wherein the means for modifying the thrust output allow the displacement of the axle (15) between at least a first position and a second position,
wherein the trigger (6) has an upper part with a trigger bridge (11) in which two long holes (9) are provided and the means for varying the thrust output comprise a ratio bridge element (8) which is put over the trigger bridge (11) and trigger (6) and which is linked to the trigger (6) via the axle (15) which traverses the two long holes (9) and that engages the catch member.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/434,860Filed 16 Mar 2020
Priority: BE 2019/517120 Mar 2019
Published: US 2022/0184655 A116 Jun 2022
Granted: 4 Jul 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

B05C 17/00596
For discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using…
B05C 17/0123
Stepwise advancing mechanism, e.g. pawl and ratchets: lever actuated
B05C
Apparatus for applying fluent materials to surfaces, in general