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Patent No. 6049912

Mountable Printable Placard With Headband

A resilient headband in a shape for being mounted on the head of the user. The headband is equipped with a longitudinal slotted member for holding a placard.

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US Patent 4392616 - Self-perforating drip irrigation device

US Patent Issued on July 12, 1983
Estimated Patent Expiration Date: Icon_subject April 6, 2001Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
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Abstract

A drip irrigation emitter having a body with internal structure for reducing fluid pressure to provide a low pressure trickle output and an inlet member providing a passage for water to the internal structure and adapted to connect the emitter to a supply hose. The inlet member has a frusto-conical barb portion integral with a neck portion that extends between the large end of the barb portion and the emitter body. A cylindrical portion extending from the small end of the barb portion, which has at least one inlet opening, is usable as a mechanical punch to enable the emitter to be attached with one simple operation to a plastic irrigation hose or lateral without prepunching holes therein.

Inventor

Application

No. 06/251157 filed on 04/06/1981

US Classes:

239/271, WITH NOZZLE OR FLOW LINE ATTACHED PENETRATING MEANS239/542CONDUIT OR NOZZLE ATTACHED IRRIGATION-TYPE DECELERATOR

Field of Search

239/271, WITH NOZZLE OR FLOW LINE ATTACHED PENETRATING MEANS239/272, Piercing connection to supply means239/542, CONDUIT OR NOZZLE ATTACHED IRRIGATION-TYPE DECELERATOR239/547DISTRIBUTOR OR NOZZLE IN CIRCUMFERENTIAL WALL OF FLEXIBLE SUPPLY LINE

Examiners

Primary: Love, John J.
Assistant: Sobel, Paul A.

Attorney, Agent or Firm

US Patent References

3885743, 3998391, Flow restrictor and trickle emitter
Issued on: 12/21/1976
Inventor: Lemelshtrich
4084749, Flow reducing devices particularly useful as drip emitters for drip irrigation
Issued on: 04/18/1978
Inventor: Drori
4281798Drip or trickle emitter
Issued on: 08/04/1981
Inventor: Lemelstrich

International Class

A01G 25/02 (20060101)

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