US3800786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental cleaning and massaging device
Assignee: Individual
•
Filing: 1972-05-18
•
Granted: 1974-04-02
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Expires: 1992-05-18
Abstract
Abstract A dental cleaning and massaging device includes an elongated hollow hand-held member divided by a partition into an upper water reservoir and a lower compartment, and an elongated nozzle is plugged into a socket in the upper side wall of the hand-held member and is angularly adjustable about transverse and longitudinal axes. A motor driven piston pump is housed in the lower compartment, the pump cylinder being connected to the nozzle by way of a passageway leading to the socket and to the reservoir by way of a check valve which is opened by the pump suction stroke. A stop member in the path of the check valve is adjustable to limit the closed position of the check valve and hence the pressure volume and velocity of the water jet from the nozzle.
Inventors
- 👤 L Kovach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:31
CPC Classifications
A; A61; A61C; A61C1/00; A61C1/0061; A61C1/0084
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
148 words
A dental treating device comprising a hollow handle member provided with a liquid reservoir and a compartment positioned below said reservoir and a partition separating said reservoir and compartment, a nozzle mounted on said handle, a reciprocating pump mounted in said handle member and including a cylinder mounted on said partition and communicating with said nozzle, and a piston reciprocable in said cylinder, and means providing communication between said cylinder and said reservoir and including a check valve located between said cylinder and said expansion chamber and movable between closed and open positions and urged toward an open position in response to the suction stroke of said pump, control means for adjustably limiting the closed position of said check valve, and means for driving said pump and including an electric motor having a drive shaft and a rotary-to-reciprocating motion translation transmission connecting said drive shaft to said piston.
Claim 2
Dependent Claim
148 words
A dental treating device comprising a hollow handle member provided with a liquid reservoir and a compartment positioned below said reservoir and a partition separating said reservoir and compartment, a nozzle mounted on said handle, a reciprocating pump mounted in said handle member and including a cylinder mounted on said partition and communicating with said nozzle, and a piston reciprocable in said cylinder, and means providing communication between said cylinder and said reservoir and including a check valve located between said cylinder and said expansion chamber and movable between closed and open positions and urged toward an open position in response to the suction stroke of said pump, control means for adjustably limiting the closed position of said check valve, and means for driving said pump and including an electric motor having a drive shaft and a rotary-to-reciprocating motion translation transmission connecting said drive shaft to said piston.
Claim 3
Dependent Claim
83 words
The dental treating device of claim 1, wherein said check valve comprises a valve seat and valve member movable longitudinally between advanced and retracted positions toward and away from engagement with said valve seat, and exposed to said cylinder to be retracted under the influence of said pump suction stroke, and said control means includes a stop member limiting the closed position of said valve member between a position in engagement with said valve seat and a predetermined distance from said valve seat.
Claim 4
Dependent Claim
61 words
The dental treating device of claim 2, wherein said stop member comprises a rod having an inner end confronting a face of said valve member exposed to said reservoir and a threaded section, and said control means includes a fixed member provided with a tapped bore engaging said threaded section and a knob mounted on the outer end of said rod.
Claim 5
Dependent Claim
67 words
The dental treating device of claim 1, wherein said partition has a valve seat defining port formed therein and said cylinder is mounted on and depends from said partition with its upper end registering with said port, and said check valve comprises a valve member movable upwardly and downwardly toward and away from closing engagement with said port, and spring means normally urging said valve member upwardly.
Claim 6
Dependent Claim
38 words
The dental treating device of claim 4, wherein said pressure control means comprises a stop member located above and in the vertical path of said valve member, and means for vertically adjusting the position of said stop member.
Claim 7
Dependent Claim
79 words
The dental treating device of claim 1, including a horizontal mounting plate located in said compartment between the top and bottom thereof, a sleeve positioned on said mounting plate coaxial with said piston, a vertical piston rod slideably engaging said sleeve and connected to said piston, said transmission including a cross head fixed to said piston rod, a crank shaft having an eccentric follower engaging said cross head, and means connecting said crank shaft to said motor drive shaft.
Claim 8
Dependent Claim
32 words
The dental treating device of claim 6, wherein said motor is mounted on the underface of said mounting plate and said transmission is supported on the top face of said mounting plate.
Claim 9
Dependent Claim
45 words
The dental treating device of claim 7, Wherein the bottom of said compartment is provided with a separable lid providing access to said compartment, and comprising a battery housed in said compartment, and means including an externally accessable switch connecting said battery to said motor.
Claim 10
Dependent Claim
17 words
The dental treating device of claim 1, wherein said nozzle is angularly adjustable about a transverse axis.
Claim 11
Dependent Claim
131 words
A dental treating device comprising a hollow handle member provided with a liquid reservoir, an elongated longitudinally extending nozzle mounted on said handle and angularly adjustable about a transverse axis, a pump mounted in said handle and including an inlet and an outlet, means including a check valve connecting said pump inlet to said reservoir, means defining a passageway connecting said pump outlet to said nozzle, said passageway terminating in a socket exposed at an outer face of said handle member, a tubualr plug projecting transversely from the base of and communicating with said nozzle and rotatably engaging said nozzle, means including an electric motor housed in said handle for driving said pump, a battery separably housed in said handle, and means including a switch connecting said motor to said battery.
Claim 12
Dependent Claim
131 words
A dental treating device comprising a hollow handle member provided with a liquid reservoir, an elongated longitudinally extending nozzle mounted on said handle and angularly adjustable about a transverse axis, a pump mounted in said handle and including an inlet and an outlet, means including a check valve connecting said pump inlet to said reservoir, means defining a passageway connecting said pump outlet to said nozzle, said passageway terminating in a socket exposed at an outer face of said handle member, a tubualr plug projecting transversely from the base of and communicating with said nozzle and rotatably engaging said nozzle, means including an electric motor housed in said handle for driving said pump, a battery separably housed in said handle, and means including a switch connecting said motor to said battery.
Claim 13
Dependent Claim
19 words
The dental treating device of claim 10, including means for releasably locking said nozzle in a preselected angular position.
Claim 14
Dependent Claim
31 words
The dental treating device of claim 11, wherein said locking means are defined by mating radially serrated annular surfaces formed on confronting surfaces surrounding and concentric with said socket and plug.
Claim 15
Dependent Claim
15 words
The dental device of claim 10, wherein said plug and socket are in separable engagement.
Claim 16
Dependent Claim
22 words
The dental device of claim 10 wherein said nozzle is angularly adjustable in said plug about the longitudinal axis of said nozzle.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-01 | 1977-10-01 | 1978-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-01 | 1981-10-01 | 1982-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-01 | 1985-10-01 | 1986-04-02 | $7700.00 | Window Closed / Lapsed |