US Patent No: 6,290,671
Number of patents in Portfolio can not be more than 2000
Regulating device for a breast pump
Stats
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Sep 18, 2001
Issued date -
Mar 20, 2000
filing date -
09/531,599
serial no -
In Force
status
Importance
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Abstract
The partial vacuum generated in a vacuum chamber by a suction pump via an air aspirating line and a hose can be changed by admitting leakage air through an air supply line. The supplied amount of leakage air is determined by a relative movement of a regulating groove and a leakage groove in respect to each other, and the partial vacuum in the vacuum chamber is regulated in this way. Since in a breast pump the partial vacuum generated in the vacuum chamber is transmitted to the funnel-shaped breast body, it is possible in this way to also regulate the partial aspiration vacuum over the breast.
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First Claim
Related Publications
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International Classification(s)
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- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 5,007,899 Drive unit adapted for use with manual piston pump | 92 | 1988 | |
| 4,964,851 Battery-powered breastpump | 63 | 1989 | |
| 5,071,403 Method and apparatus for protecting the pump of a breast pump from fouling by milk | 63 | 1989 | |
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| 4,886,494 Milking apparatus | 41 | 1988 | |
| 4,883,464 Milking equipment | 49 | 1988 | |
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| 4,759,747 Breast pump including pressure adjusting means | 56 | 1986 | |
| 5,295,957 Breast pump having a pressure adjusting mechanism | 47 | 1991 | |
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| 4,673,388 Breast pump | 63 | 1985 | |
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| 4,813,932 Single-handed breast pump | 51 | 1987 | |
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| 4,946,134 Pair of cooperating disks to control the delivery of liquid in so-called "sc" valves | 22 | 1989 | |
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| 5,776,098 Diaphragm pump and pump mounted in a carrying case useful in breast pumping | 50 | 1995 | |
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| 4,813,931 Pediatric suction system and method with filter | 34 | 1986 | |
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| 4,961,726 Breast milk pump | 38 | 1988 | |
| 5,308,040 Fluid flow regulating valve | 21 | 1992 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Mar 18, 2013 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |