Dispensing – With discharge assistant – Insertable cartridge or removable container
Patent
1994-07-18
1996-09-17
Kashnikow, Andres
Dispensing
With discharge assistant
Insertable cartridge or removable container
222333, 74 8915, 192125A, B65D 8854
Patent
active
055560091
ABSTRACT:
An adjustable, battery-powered, constant pressure gun for dispensing viscous materials such as caulk and adhesive. The gun includes a housing having a handle, an operator-actuated trigger, and a battery compartment with power supply terminals. A motor mounted within the housing drives a dispensing mechanism. The flow of current through the motor is controlled by an electronic switch. A current-to-voltage converter including a low-pass filter is coupled to the motor and provides a feedback pressure signal representative of the actual dispensing pressure as a function of the current drawn by the motor. A set-point voltage signal representative of a desired dispensing pressure is provided by an operator-adjustable pressure control. A hysteresis comparator connected to the electronic switch compares the feedback pressure signal to the set-point signal, and controls the switch as a function of the comparison to maintain the actual dispensing pressure within a predetermined operating band of the desired dispensing pressure when the trigger is actuated.
REFERENCES:
patent: 4024994 (1977-05-01), Davis, Jr.
patent: 4114781 (1978-09-01), Doyel
patent: 4257540 (1981-03-01), Wegmann et al.
patent: 4260076 (1981-04-01), Bergman
patent: 4335834 (1982-06-01), Zepkin
patent: 4440314 (1984-04-01), Vetter et al.
patent: 4522059 (1985-06-01), Rodde et al.
patent: 4580698 (1986-04-01), Ladt et al.
patent: 4583934 (1986-04-01), Hata et al.
patent: 4615469 (1986-10-01), Kishi et al.
patent: 4662540 (1987-05-01), Schroter
patent: 4669636 (1987-06-01), Miyata
patent: 4789100 (1988-12-01), Senf
patent: 4804110 (1989-02-01), Sperry et al.
patent: 5054650 (1991-10-01), Price
patent: 5105912 (1992-04-01), Heister
patent: 5182938 (1993-02-01), Merkel
AEG Power Tool Corporation, Operating Instructions for AEG Rechargeable Variable Speed Cordless Caulking Gun EX581, pp. 1-11.
Douglas Lisa
Kashnikow Andres
Wagner Spray Tech Corporation
LandOfFree
Adjustable constant pressure caulk gun does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Adjustable constant pressure caulk gun, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Adjustable constant pressure caulk gun will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-408226