Dispensing – With discharge assistant – With movable nozzle interconnected therewith
Patent
1984-06-01
1987-02-03
Marmor, Charles A.
Dispensing
With discharge assistant
With movable nozzle interconnected therewith
222383, 239333, B67D 540, B05B 943
Patent
active
046404449
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The invention relates to a manually-operated pump dispenser for dispensing liquids from a container. The dispenser is comprised of seven parts including an adjustable nozzle, a pump member having a trigger extending rigidly therefrom, a coiled spring, an inboard valve member, a housing, a closure and a dip tube. The pump member is slidably received in the housing, and both the pump member and the housing include cooperating planar members for resisting the tendency of the pump member to distort about an axis transverse to the housing upon engagement of the trigger, thereby maintaining the housing and the pump member in longitudinal alignment. The pump member and the adjustable nozzle form the outboard valve, without the need of an additional part, and the closure is directly coupled to the housing without an added part.
BACKGROUND OF THE INVENTION
Manually-operated pump dispensers for dispensing liquids from containers have long been known. They are typically in two forms, one being commonly referred to as a trigger sprayer and the other being referred to as a finger pump. In the trigger sprayer, the operator's hand grasps a housing and the operator's index and middle fingers engage a trigger which is pivotally or longitudinally movable towards the housing to dispense liquids from a container coupled to the housing. In the finger pump type of dispenser the operator's hand once again grasps a housing and usually only the operator's index finger engages a vertically slidable pump member that reciprocates in the housing. These dispensers, in either form, thus typically comprise a housing and a movable pumping member with some sort of nozzle at the end of the movable member to dispense the liquid in a spray or stream. To provide the required pumping action, these devices require two one-way, or check, valves along the flow of the liquid and a biasing member to move the pump member away from the housing after it has been moved towards the housing.
While these devices are well known, there is a continued need for improvement in their construction and operation. Thus, many of the prior art devices have numerous parts, are complicated to manufacture, are not reliable since they tend to leak, and are not easily produced by an efficient injection molding process. Moreover, many of these devices have complicated adjustable nozzles and require several parts to couple them to the container.
Examples of these prior art devices are disclosed in the following U.S. patents: U.S. Pat. Nos. 2,004,295 to Rothchild et al; 2,753,578 to Lebet; 3,044,413 to Corsette; 3,102,489 to Corsette et al; 3,248,021 to Corsette; 3,282,472 to Roder; 3,527,551 to Kutik et al; 3,877,616 to Stevens; 4,072,252 to Steyns et al; 4,159,067 to Akers; 4,249,681 to French; 4,273,268 to Wickenberg; 4,315,582 to Micallef; 4,371,097 to O'Neill; and 4,410,107 to Corsette.
SUMMARY OF THE INVENTION
Accordingly, a primary object of the invention is to provide a pump dispenser that has a limited number of parts, is simple to construct and operate, resists leakage and is easily produced by injection molding of its parts.
Another object of the invention is to provide a pump dispenser utilizing a pump member that is slidably engageable with the housing including cooperating members for maintaining the pump member and housing in longitudinal alignment during relative movement therebetween.
Another object of the invention is to provide such a pump dispenser in which an adjustable nozzle combines with the pump member to form the outboard valve.
Another object of the invention is to provide such a pump dispenser with a one-piece closure that is directly coupled to the housing without an added part.
Another object of the invention is to provide such a pump dispenser formed of only seven parts including an integrally molded adjustable nozzle, an integrally molded pump member, an integrally molded housing and an integrally molded closure.
The foregoing objects are basically attained by providing in a manually-operated pump dispenser includ
REFERENCES:
patent: 1143839 (1915-06-01), Lefever
patent: 1223655 (1917-04-01), Arden
patent: 2004295 (1935-06-01), Rothchild et al.
patent: 2753578 (1956-07-01), Lebet
patent: 2877931 (1959-03-01), Goldfarb
patent: 3044413 (1962-07-01), Corsette
patent: 3102489 (1963-09-01), Corsette et al.
patent: 3248021 (1966-04-01), Corsette et al.
patent: 3282472 (1966-11-01), Roder
patent: 3527551 (1970-09-01), Kutik et al.
patent: 3877616 (1975-04-01), Stevens
patent: 3877617 (1975-04-01), Stevens
patent: 4072252 (1978-02-01), Steyns et al.
patent: 4159067 (1979-06-01), Akers
patent: 4249681 (1981-02-01), French
patent: 4273268 (1981-06-01), Wickenberg
patent: 4315582 (1982-02-01), Micallef
patent: 4358057 (1982-11-01), Burke
patent: 4371097 (1983-02-01), O'Neill
patent: 4410107 (1983-10-01), Corsette
patent: 4538745 (1985-09-01), Dunning et al.
Huppert Michael S.
Marmor Charles A.
LandOfFree
Pump dispenser with slidable trigger does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pump dispenser with slidable trigger, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pump dispenser with slidable trigger will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1088179