Bizarre Patents
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:
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.
Estimated Patent Expiration Date:
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.AbstractA 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. | InventorApplicationNo. 06/251157 filed on 04/06/1981US Classes:239/271, WITH NOZZLE OR FLOW LINE ATTACHED PENETRATING MEANS239/542CONDUIT OR NOZZLE ATTACHED IRRIGATION-TYPE DECELERATORField of Search239/271, 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 LINEExaminersPrimary: Love, John J.Assistant: Sobel, Paul A. Attorney, Agent or FirmUS Patent References3885743, 3998391, Flow restrictor and trickle emitterIssued on: 12/21/1976 Inventor: Lemelshtrich4084749, Flow reducing devices particularly useful as drip emitters for drip irrigation Issued on: 04/18/1978 Inventor: Drori4281798Drip or trickle emitter Issued on: 08/04/1981 Inventor: Lemelstrich International ClassA01G 25/02 (20060101) |
