GB891890A - Pulsator for milking machines - Google Patents
Pulsator for milking machinesInfo
- Publication number
- GB891890A GB891890A GB21382/58A GB2138258A GB891890A GB 891890 A GB891890 A GB 891890A GB 21382/58 A GB21382/58 A GB 21382/58A GB 2138258 A GB2138258 A GB 2138258A GB 891890 A GB891890 A GB 891890A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pistons
- piston
- cylinder
- air
- pulsator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01J—MANUFACTURE OF DAIRY PRODUCTS
- A01J5/00—Milking machines or devices
- A01J5/04—Milking machines or devices with pneumatic manipulation of teats
- A01J5/10—Pulsators arranged otherwise than on teat-cups
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Animal Husbandry (AREA)
- Environmental Sciences (AREA)
- Actuator (AREA)
Abstract
A pneumatic pulsator for a milking machine, preferably having two or four pistons reciprocating in cylinders which control two slide valves for the distribution of atmospheric or reduced pressure to the teat-cup assembly, varies the relative time of compression and expansion of the teats by subjecting at least one piston to a different driving force to that of the other pistons. This may be accomplished if any one of four ways each of which is described in detail namely (i) by having one piston of a different size to the other pistons, (ii) by providing a spring to resist the motion of one of the pistons, (iii) by the controlled admission of air to a cylinder through a calibrated orifice in the cylinder wall and (iv) by the controlled admission of air into a cylinder by an orifice in the piston. The invention is also applicable to diaphragm operated pulsators. Specification 655,239 is referred to.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE1249233X | 1958-02-22 | ||
BE891890X | 1958-02-22 | ||
BE356632X | 1958-02-22 | ||
BE290458X | 1958-04-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB891890A true GB891890A (en) | 1962-03-21 |
Family
ID=27425065
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21382/58A Expired GB891890A (en) | 1958-02-22 | 1958-07-03 | Pulsator for milking machines |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR1249233A (en) |
GB (1) | GB891890A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0009282A1 (en) * | 1978-09-20 | 1980-04-02 | INTERPULS S.n.C. di Ligabue & C. | Pulsator device for use in milking machines |
-
1958
- 1958-06-26 FR FR768910A patent/FR1249233A/en not_active Expired
- 1958-07-03 GB GB21382/58A patent/GB891890A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0009282A1 (en) * | 1978-09-20 | 1980-04-02 | INTERPULS S.n.C. di Ligabue & C. | Pulsator device for use in milking machines |
Also Published As
Publication number | Publication date |
---|---|
FR1249233A (en) | 1960-12-30 |
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