US3613698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dental hygiene unit
Assignee: Individual
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Filing: 1969-09-26
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Granted: 1971-10-19
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Expires: 1989-09-26
Abstract
Abstract An inclusive dental hygiene unit adapted to be carried on one''s person. Within the compact case is a toothbrush and a replaceable disposable dispenser of paste dentifrice. A sliding action of the case end deposits a measured amount of the dentifrice upon the bristles of the toothbrush and simultaneously ejects the upper portion of the brush into usable position.
Inventors
- 👤 Daniel W Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:08
CPC Classifications
A; A46; A46B; A46B11/00; A46B11/0006
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
252 words
In combination, an elongated housing defining a longitudinal toothbrush-receiving chamber opening outwardly of one end of said housing, a toothbrush disposed lengthwise in and extendable and retractable relative to one end of said chamber with the bristle end of said toothbrush disposed for first extension relative to said chamber, a paste reservoir in said housing including an outlet, paste delivery means in said housing for conveying paste from said reservoir to the bristle end of said toothbrush and including a passage communicated at one end portion with said outlet and having its other end opening into the open end portion of said chamber and registered with the first extended end portion of the bristle end of the toothbrush, paste pump means operatively associated with said reservoir and passage for pumping paste from the reservoir through said passage, said pump means including a single-action piston-type actuator reciprocal longitudinally of said housing and movable in one direction during its priming stroke and in the opposite direction during its pumping stroke, said passagE outlet end and said bristle end of said toothbrush being supported for relative displacement longitudinally of said housing during movement of said actuator through its pumping stroke with one of said passage outlet and bristle ends supported in stationary position relative to said housing and the other of said ends movable along said housing with said actuator, whereby as paste is discharged from the outlet end of said passage the discharged paste will be spread along said bristle end of the toothbrush.
Claim 2
Dependent Claim
252 words
In combination, an elongated housing defining a longitudinal toothbrush-receiving chamber opening outwardly of one end of said housing, a toothbrush disposed lengthwise in and extendable and retractable relative to one end of said chamber with the bristle end of said toothbrush disposed for first extension relative to said chamber, a paste reservoir in said housing including an outlet, paste delivery means in said housing for conveying paste from said reservoir to the bristle end of said toothbrush and including a passage communicated at one end portion with said outlet and having its other end opening into the open end portion of said chamber and registered with the first extended end portion of the bristle end of the toothbrush, paste pump means operatively associated with said reservoir and passage for pumping paste from the reservoir through said passage, said pump means including a single-action piston-type actuator reciprocal longitudinally of said housing and movable in one direction during its priming stroke and in the opposite direction during its pumping stroke, said passagE outlet end and said bristle end of said toothbrush being supported for relative displacement longitudinally of said housing during movement of said actuator through its pumping stroke with one of said passage outlet and bristle ends supported in stationary position relative to said housing and the other of said ends movable along said housing with said actuator, whereby as paste is discharged from the outlet end of said passage the discharged paste will be spread along said bristle end of the toothbrush.
Claim 3
Dependent Claim
171 words
In combination, an elongated housing having front and rear ends and including side-by-side longitudinal first and second cavities, the front end of said second cavity terminating a spaced distance from the front end of said housing and the front end of the first cavity including a lateral extension disposed in front of the front end of the second cavity and opening forwardly through the front end of said housing, said second cavity defining a paste reservoir and having a paste outlet in the front end thereof, a toothbrush including handle and bristle ends disposed in said first cavity and extendable and retractable relative to said front end of said housing with said bristle end projecting into said extension when said brush is retracted relative to said front end of said housing, and paste-conveying means including a reciprocal pump portion operative to pump paste from said reservoir to a discharge point opening into the foreward end of said extension at the side thereof remote from the first cavity side of said housing.
Claim 4
Dependent Claim
171 words
In combination, an elongated housing having front and rear ends and including side-by-side longitudinal first and second cavities, the front end of said second cavity terminating a spaced distance from the front end of said housing and the front end of the first cavity including a lateral extension disposed in front of the front end of the second cavity and opening forwardly through the front end of said housing, said second cavity defining a paste reservoir and having a paste outlet in the front end thereof, a toothbrush including handle and bristle ends disposed in said first cavity and extendable and retractable relative to said front end of said housing with said bristle end projecting into said extension when said brush is retracted relative to said front end of said housing, and paste-conveying means including a reciprocal pump portion operative to pump paste from said reservoir to a discharge point opening into the foreward end of said extension at the side thereof remote from the first cavity side of said housing.
Claim 5
Dependent Claim
22 words
The combination of claim 2 wherein said conveying means includes passage means for conveying paste from said reservoir to said discharge point.
Claim 6
Dependent Claim
96 words
The combination of claim 3 wherein said housing defines a pressure chamber disposed forward of said first cavity and between the latter and said extension, said paste outlet opening into said chamber and having first one-way check valve means operatively associated therewith, a pumping chamber communicated with said pressure chamber, a reciprocal piston member slidable over said pumping chamber, the inlet end of said passage means opening into said pressure chamber and second one-way check valve means operatively associated with said passage means operable to prevent reverse flow of the paste therethrough into said pressure chamber.
Claim 7
Dependent Claim
140 words
The combination of claim 4 wherein said reciprocal piston member is reciprocal longitudinally of said housing, an actuator for said piston member including portions thereof disposed exteriorly of said housing and mounted for reciprocation along the latter and connected to the piston member, said toothbrush handle end and said actuator including coacting means operable to at least initially project the toothbrush from the front end of said housing during forward movement of the actuator relative to the housing, the piston member and actuator being movable rearwardly along the housing during the priming stroke of said piston member and forwardly along said housing during the pumping stroke of said piston member whereby paste will be discharged from the outlet end of said passage means at said discharge point as said toothbrush is initially projected from said front end of said housing.
Claim 8
Dependent Claim
29 words
The combination of claim 5 wherein said toothbrush and housing include coacting means operable to yieldingly retain said toothbrush against full extension from said front end of said housing.
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) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |