Patent US3881448A successfully refreshed from Google Patents.
US3881448A
Expired / Lapsed
US
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Milking valve
Assignee: Individual
•
Filing: 1973-11-23
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Granted: 1975-05-06
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Expires: 1993-11-23
Abstract
Abstract A hollow tube is extended into each teat of a cow''s udder and retained substantially permanently therein, thereby maintaining open the teat passageway normally closed by the sphincter muscle. The end of the tube projecting from the teat is provided with an enlarged, hollow valve body containing a normally closed valve. A milk collecting tube is connected at one end to a hollow valve coupler adapted to be connected removably to the valve body, the coupler containing a valve operator which, upon interconnection of the valve body and coupler, automatically opens the normally closed valve, allowing milk in the udder to pass through the collecting tube to a collection receptacle.
Inventors
- 👤 Olof A Hallstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:27
CPC Classifications
A; A01; A01J; A01J3/00
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
115 words
A milking valve comprising a. a valve component including 1. a valve body having a longitudinal passageway therethrough, 2. a valve member in the valve body normally closing said passageway, and 3. a hollow inlet tube extending from the valve body and adapted for insertion through the opening defined by the sphincter muscle of an udder teat, and b. a coupler component including 1. a hollow valve coupler body arranged for removable connection to the valve body and adapted for communication with a milk collection receptacle, and 2. valve actuating means associated with the coupler body for moving the valve member to open the passageway upon connection of the coupler body to the valve body.
Claim 2
Dependent Claim
115 words
A milking valve comprising a. a valve component including 1. a valve body having a longitudinal passageway therethrough, 2. a valve member in the valve body normally closing said passageway, and 3. a hollow inlet tube extending from the valve body and adapted for insertion through the opening defined by the sphincter muscle of an udder teat, and b. a coupler component including 1. a hollow valve coupler body arranged for removable connection to the valve body and adapted for communication with a milk collection receptacle, and 2. valve actuating means associated with the coupler body for moving the valve member to open the passageway upon connection of the coupler body to the valve body.
Claim 3
Dependent Claim
12 words
a valve member in the valve body normally closing said passageway, and
Claim 4
Dependent Claim
12 words
a valve member in the valve body normally closing said passageway, and
Claim 5
Dependent Claim
41 words
The milking valve of claim 1 including retainer means on the inlet tube inwardly of the valve body arranged to engage the inner surface of an udder teat inwardly of the sphincter muscle thereof for retaining the tube in said teat.
Claim 6
Dependent Claim
27 words
valve actuating means associated with the coupler body for moving the valve member to open the passageway upon connection of the coupler body to the valve body.
Claim 7
Dependent Claim
27 words
valve actuating means associated with the coupler body for moving the valve member to open the passageway upon connection of the coupler body to the valve body.
Claim 8
Dependent Claim
31 words
a hollow inlet tube extending from the valve body and adapted for insertion through the opening defined by the sphincter muscle of an udder teat, and b. a coupler component including
Claim 9
Dependent Claim
31 words
a hollow inlet tube extending from the valve body and adapted for insertion through the opening defined by the sphincter muscle of an udder teat, and b. a coupler component including
Claim 10
Dependent Claim
17 words
The milking valve of claim 2 wherein the retainer means comprises an enlarged shoulder on the tube.
Claim 11
Dependent Claim
36 words
The milking valve of claim 3 wherein the shoulder comprises a plurality of peripheral resilient tabs arranged to flex inwardly during inward passage through the sphincter muscle opening and thereafter to flex outwardly to retaining position.
Claim 12
Dependent Claim
31 words
The milking valve of claim 1 wherein the valve member comprises a ball, and spring means in the passageway engages the ball and urges the latter resiliently to passageway closing position.
Claim 13
Dependent Claim
71 words
The milking valve of claim 1 wherein the valve member comprises a ball at the outer end of the valve body passageway, spring means in the passageway engages the ball and urges the latter outward toward closing position, and the valve actuating means comprises a pin member in the coupler body arranged upon connection of the latter to the valve body to engage the ball and move it to open position.
Claim 14
Dependent Claim
71 words
The milking valve of claim 1 wherein the valve member comprises a ball at the inner end of the valve body passageway, spring means in the passageway engages the ball and urges the latter inward toward closing position, and the valve actuating means comprises means providing a partial vacuum to the hollow coupler body whereupon connection of the latter to the valve body effects movement of the ball to open position.
Claim 15
Dependent Claim
30 words
The milking valve of claim 1 including connector means on the valve body and coupler body arranged for releasable interconnection for detachably connecting the valve body and coupler body together.
Claim 16
Dependent Claim
31 words
The milking valve of claim 8 wherein the connector means comprises a peripheral groove in the valve body and resilient clip means on the coupler body arranged to engage said groove.
Claim 17
Dependent Claim
15 words
The milking valve of claim 9 wherein the clip means comprises a resilient O-ring seal.
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) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |