US3867938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hygienic syringe
Assignee: Schick Inc
•
Filing: 1973-08-01
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Granted: 1975-02-25
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Expires: 1993-08-01
Abstract
Abstract A hygienic syringe operable from gas-producing chemical pills for applying a jet of fluid to a desired body area comprises a sealed fluid reservoir fitted at one end with a flexible communicating hose and dispensing nozzle, and fitted at its other end with a one-way valve through which chemicals can be inserted into the reservoir. Prior to use, gas-producing chemicals in pill form are loaded into respective compartments in a compartmentized chemical carrier and the reservoir is filled with fluid. After the dispensing probe has been positioned the syringe is activated by inserting the chemical carrier through the one-way valve, which brings the gas-generating chemicals into contact with the solution therein and generates sufficient gas pressure to force the fluid from the reservoir. By reason of the chemical carrier and one-way valve, positioning of the reservoir is not critical, no special skill is required on the part of the user, and it is not necessary to invert the reservoir prior to use.
Inventors
- 👤 Remington Radcliffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:24
CPC Classifications
A; A61; A61M; A61M3/00; A61M3/02; A61M3/0233; A61M3/0237
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
173 words
A hygienic syringe operable from a gas-producing chemical for applying a jet of fluid to a desired body area, comprising, in combination: a reservoir housing defining a reservoir for containing said fluid; a nozzle and hose assembly in communication with said reservoir for conveying fluid from said reservoir to said body area; a chemical carrier including a carrier housing defining a compartment for containing a predetermined quantity of said chemical, said carrier being separate and removable from said reservoir housing and including at least one aperture in said carrier housing for admitting fluid from outside said carrier into said compartment; and means including an apertured inwardly-convex resilient diaphragm in said reservoir housing dimensioned to facilitate insertion of said chemical carrier through said reservoir housing into said reservoir, said valve providing a substantially vapor tight seal following insertion of said carrier whereby the pressure produced in said reservoir by said chemical in said carrier reacting with said fluid in said reservoir forces said fluid through said nozzle and hose assembly to said body area.
Claim 2
Dependent Claim
173 words
A hygienic syringe operable from a gas-producing chemical for applying a jet of fluid to a desired body area, comprising, in combination: a reservoir housing defining a reservoir for containing said fluid; a nozzle and hose assembly in communication with said reservoir for conveying fluid from said reservoir to said body area; a chemical carrier including a carrier housing defining a compartment for containing a predetermined quantity of said chemical, said carrier being separate and removable from said reservoir housing and including at least one aperture in said carrier housing for admitting fluid from outside said carrier into said compartment; and means including an apertured inwardly-convex resilient diaphragm in said reservoir housing dimensioned to facilitate insertion of said chemical carrier through said reservoir housing into said reservoir, said valve providing a substantially vapor tight seal following insertion of said carrier whereby the pressure produced in said reservoir by said chemical in said carrier reacting with said fluid in said reservoir forces said fluid through said nozzle and hose assembly to said body area.
Claim 3
Dependent Claim
38 words
A hygienic syringe as defined in claim 1 wherein an additional chemical is added to said fluid prior to application to said body area, and wherein said chemical carrier includes an additional compartment for containing said additional chemical.
Claim 4
Dependent Claim
29 words
A hygienic syringe as defined in claim 2 wherein said additional chemical is in pill form, and wherein said additional compartment is dimensioned to receive said additional chemical pill.
Claim 5
Dependent Claim
35 words
A hygienic syringe as defined in claim 3 wherein said chemical pills are contained in respective compartments in said carrier and are physically separated to prevent chemical interaction therebetween prior to immersion in said fluid.
Claim 6
Dependent Claim
210 words
A hygienic syringe operable from a gas-producing chemical pill and a medicinal chemical pill for applying a jet of medicinal fluid under a predetermined pressure to a desired body area, comprising, in combination: a reservoir housing defining a reservoir for containing said fluid; a nozzle and hose assembly in communication with said reservoir for conveying fluid from said reservoir to said body area; a chemical carrier including a carrier housing defining first and second compartments, said first compartment being dimensioned to receive said chemical pill, said second compartment being dimensioned to receive said medicInal pill, said compartments being arranged to prevent physical contact between said pills, and said carrier being separate and removable from said reservoir housing and including at least one aperture in said carrier housing for admitting fluid from outside said carrier into said compartments; and means comprising an apertured inwardly-convex resilient diaphragm in said reservoir housing to facilitate insertion of said chemical carrier through said reservoir housing into said reservoir, said diaphragm providing a substantially vapor tight seal following insertion of said carrier whereby the pressure produced in said reservoir by said gas-producing chemical in said compartment reacting with said fluid in said reservoir forces said fluid through said nozzle and hose assembly to said body area.
Claim 7
Dependent Claim
210 words
A hygienic syringe operable from a gas-producing chemical pill and a medicinal chemical pill for applying a jet of medicinal fluid under a predetermined pressure to a desired body area, comprising, in combination: a reservoir housing defining a reservoir for containing said fluid; a nozzle and hose assembly in communication with said reservoir for conveying fluid from said reservoir to said body area; a chemical carrier including a carrier housing defining first and second compartments, said first compartment being dimensioned to receive said chemical pill, said second compartment being dimensioned to receive said medicInal pill, said compartments being arranged to prevent physical contact between said pills, and said carrier being separate and removable from said reservoir housing and including at least one aperture in said carrier housing for admitting fluid from outside said carrier into said compartments; and means comprising an apertured inwardly-convex resilient diaphragm in said reservoir housing to facilitate insertion of said chemical carrier through said reservoir housing into said reservoir, said diaphragm providing a substantially vapor tight seal following insertion of said carrier whereby the pressure produced in said reservoir by said gas-producing chemical in said compartment reacting with said fluid in said reservoir forces said fluid through said nozzle and hose assembly to said body area.
Claim 8
Dependent Claim
183 words
A hygienic syringe operable from a gas-producing chemical for applying a jet of fluid to a desired body area, comprising, in combination: a cylindrical reservoir housing defining a reservoir for containing said fluid; a nozzle and hose assembly in communication with said reservoir for conveying fluid from said reservoir to said body area; a chemical carrier including a carrier housing defining a compartment for containing a predetermined quantity of said chemical, said carrier being separate and removable from said reservoir housing and including at least one aperture in said carrier housing for admitting fluid from outside said carrier into said compartment; and one-way valve means comprising an apertured inwardly-convex resilient diaphragm fitted over one end of said reservoir housing, said valve being dimensioned to facilitate insertion of said chemical carrier through said reservoir housing into said reservoir and to provide a substantially vapor tight seal following insertion of said carrier whereby the pressure produced in said reservoir by said chemical in said carrier reacting with said fluid in said reservoir forces said fluid through said nozzle and hose assembly to said body area.
Claim 9
Dependent Claim
183 words
A hygienic syringe operable from a gas-producing chemical for applying a jet of fluid to a desired body area, comprising, in combination: a cylindrical reservoir housing defining a reservoir for containing said fluid; a nozzle and hose assembly in communication with said reservoir for conveying fluid from said reservoir to said body area; a chemical carrier including a carrier housing defining a compartment for containing a predetermined quantity of said chemical, said carrier being separate and removable from said reservoir housing and including at least one aperture in said carrier housing for admitting fluid from outside said carrier into said compartment; and one-way valve means comprising an apertured inwardly-convex resilient diaphragm fitted over one end of said reservoir housing, said valve being dimensioned to facilitate insertion of said chemical carrier through said reservoir housing into said reservoir and to provide a substantially vapor tight seal following insertion of said carrier whereby the pressure produced in said reservoir by said chemical in said carrier reacting with said fluid in said reservoir forces said fluid through said nozzle and hose assembly to said body area.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-24 | 1978-08-26 | 1979-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-24 | 1982-08-26 | 1983-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-24 | 1986-08-26 | 1987-02-25 | $7700.00 | Window Closed / Lapsed |