Dispensing – With lock or fastening seal – Inhibiting disassembly
Patent
1996-02-06
1998-06-09
Huson, Gregory L.
Dispensing
With lock or fastening seal
Inhibiting disassembly
222327, B67B 532
Patent
active
057622370
ABSTRACT:
A simple, inexpensive and efficient cartridge lock to retain a caulk cartridge within the frame of a caulk gun until intentionally released by the operator, thereby eliminating a potential safety hazard. The cartridge lock includes a resilient spacer having a central passage for slidable insertion over the plunger shaft of the caulk gun. The spacer is inserted onto the plunger shaft and is carried thereon between the piston and supporting wall to require an additional measure of force for retraction of the plunger shaft in order to insert a new cartridge or remove an old one. This avoids inadvertent release and fall-through of the cartridge. Various embodiments of the spacer are contemplated including a constricted spring having one end formed with coils sized for slidable insertion over the plunger shaft, and a constricted end formed with at least one tighter coil for gripping the plunger shaft. The constricted spring is inserted onto the plunger shaft and is carried thereon between the piston and supporting wall. Alternatively, the resilient spacer may be a length of resilient material formed in an arc and having a central through-bore for insertion on the plunger shaft.
REFERENCES:
patent: 1986166 (1935-01-01), Schneider
patent: 3381861 (1968-05-01), Stein
patent: 4204616 (1980-05-01), Chang
patent: 5336014 (1994-08-01), Keller
LandOfFree
Cartridge lock for caulk dispensing devices does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cartridge lock for caulk dispensing devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cartridge lock for caulk dispensing devices will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2191478