US3782385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Breast pump
Assignee: Individual
•
Filing: 1972-10-24
•
Granted: 1974-01-01
•
Expires: 1992-10-24
Abstract
Abstract A breast pump utilizing a breast receiving element in the shape of a truncated cone in which the base of the cone is enlarged in order to avoid constriction of the nipple disposed therein and which further employs a suction pump capable of exerting various levels of vacuum force as required by the user.
Inventors
- 👤 P Loyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:20
CPC Classifications
A; A61; A61M; A61M1/00; A61M1/06; A61M1/80; A61M1/81; A61M2205/00; A61M2205/07; A61M2205/071; A61M2205/073
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
157 words
A breast pump arrangement comprising: a. a milk receiving receptacle having a neck portion, a removable cap in fluid-sealing relationship with said neck portion, a breast receiving element having a tubular portion inserted through a first opening in said cap, an air withdrawal tube inserted through a second opening in said cap to permit the evacuation of said receptacle; b. a suction pump capable of being regulated to exert different levels of vacuum force comprising a vented cylinder having a spring-biased piston disposed therein, said piston having a shaft extending through an aperture at one end of said cylinder and pivotally connected to one end of a pump arm, fulcrum means to enable pivotal movement of said pump arm, a finger-grip portion extending from said cylinder, and a hollow inlet tube at the opposite end of said cylinder and provided with a oneway valve means; and c. a connecting tube joining said receptacle to said suction pump.
Claim 2
Dependent Claim
157 words
A breast pump arrangement comprising: a. a milk receiving receptacle having a neck portion, a removable cap in fluid-sealing relationship with said neck portion, a breast receiving element having a tubular portion inserted through a first opening in said cap, an air withdrawal tube inserted through a second opening in said cap to permit the evacuation of said receptacle; b. a suction pump capable of being regulated to exert different levels of vacuum force comprising a vented cylinder having a spring-biased piston disposed therein, said piston having a shaft extending through an aperture at one end of said cylinder and pivotally connected to one end of a pump arm, fulcrum means to enable pivotal movement of said pump arm, a finger-grip portion extending from said cylinder, and a hollow inlet tube at the opposite end of said cylinder and provided with a oneway valve means; and c. a connecting tube joining said receptacle to said suction pump.
Claim 3
Dependent Claim
19 words
The breast pump as defined in claim 1 further comprising a vacuum release valve connected to said inlet tube.
Claim 4
Dependent Claim
14 words
The breast pump as defined in claim 1 wherein said connecting tube is flexible.
Claim 5
Dependent Claim
61 words
The breast pump as defined in claim 1 wherein the breast receiving element comprises a truncated cone-shaped upper portion which contacts the breast, a generally cylindrical intermediate portion contiguous with the narrow end of said cone, and a generally tubular lower stem portion contiguous with said intermediate portion and enlarged at the point of contact between said intermediate and lower portions.
Claim 6
Dependent Claim
42 words
The breast pump as deFined in claim 1 wherein the connecting tube is selectively engageable with the suction pump, and wherein said cap, said air withdrawal tube and said breast receiving element form an integral unit which is disposable as a unit.
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) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |