← Back to Patent Explorer
US3006818A Expired / Lapsed US ⏱️ 0.0 years remaining

Method of fabricating solar still in continuous lengths

Assignee: Bjorksten Research Laboratories Inc
•
Filing: 1957-05-31
•
Granted: 1961-10-31
•
Expires: 1977-05-31
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Risto P Lappala
  • 👤 Harry O Rennat

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 21:59
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/14; B; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/581; B29C53/582; B29C53/583; B29C53/584; B29C53/80; B29C53/8008; B29C53/8083; B29C65/00; B29C65/02; B29C65/18; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/208; Y02A20/212; Y10; Y10S; Y10S203/00; Y10S203/18

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 183 words
A SOLAR STILL FABRICATED FROM WIRE AND PLASTIC COMPRISING: A CONTINUOUS, HELICAL WIRE FRAMEWORK, TWO RODS AND A TRANSPARENT PLASTIC COVER, SAID FRAMEWORK COMPRISING TWO UPRIGHT LOOPS ON THE BASE WIRE OF EACH SEGMENT OF SAID WIRE HELIX, EACH LOOP HAVING A RING AND A NARROW PORTION WHICH IN COMBINATION LOOKS LIKE A COTTER PIN, SAID LOOPS SEPARATED BY A DISTANCE ON THE BASE WIRES OF EACH SEGMENT OF THE WIRE HELIX, AND SAID LOOPS IN SERIES COMPRISING TWO PARALLEL ROWS OF LOOPS SEPARATED BY SAID DISTANCE, SAID TRANSPARENT COVER WRAPPED AROUND THE EXTERIOR OF SAID WIRE FRAMEWORK AND DRAWN UP THROUGH THE NARROW PORTIONS AND RINGS OF SAID SERIES OF LOOPS, ONE OF SAID RODS DRAWN THROUGH THE RINGS OF ONE ROW OF SAID PLASTIC COVERED LOOPS AND ANOTHER ROD DRAWN THROUGH THE THE RINGS OF THE OTHER ROW OF SAID PLASTIC COVERED LOOPS, SAID WIRE FRAMEWORK AND STILL IN COMBINATION HAVING THREE PARALLEL CHANNELS OF SUBSTANTIALLY UNLIMITED LENGTH SEPARATED BY SAID PARALLEL ROWS OF PLASTIC COVERED LOOPS, THE WALLS OF SAID CHANNELS FORMED BY SAID TWO ROWS OF PLASTIC COVERED LOOPS.
Claim 2
Dependent Claim 183 words
A SOLAR STILL FABRICATED FROM WIRE AND PLASTIC COMPRISING: A CONTINUOUS, HELICAL WIRE FRAMEWORK, TWO RODS AND A TRANSPARENT PLASTIC COVER, SAID FRAMEWORK COMPRISING TWO UPRIGHT LOOPS ON THE BASE WIRE OF EACH SEGMENT OF SAID WIRE HELIX, EACH LOOP HAVING A RING AND A NARROW PORTION WHICH IN COMBINATION LOOKS LIKE A COTTER PIN, SAID LOOPS SEPARATED BY A DISTANCE ON THE BASE WIRES OF EACH SEGMENT OF THE WIRE HELIX, AND SAID LOOPS IN SERIES COMPRISING TWO PARALLEL ROWS OF LOOPS SEPARATED BY SAID DISTANCE, SAID TRANSPARENT COVER WRAPPED AROUND THE EXTERIOR OF SAID WIRE FRAMEWORK AND DRAWN UP THROUGH THE NARROW PORTIONS AND RINGS OF SAID SERIES OF LOOPS, ONE OF SAID RODS DRAWN THROUGH THE RINGS OF ONE ROW OF SAID PLASTIC COVERED LOOPS AND ANOTHER ROD DRAWN THROUGH THE THE RINGS OF THE OTHER ROW OF SAID PLASTIC COVERED LOOPS, SAID WIRE FRAMEWORK AND STILL IN COMBINATION HAVING THREE PARALLEL CHANNELS OF SUBSTANTIALLY UNLIMITED LENGTH SEPARATED BY SAID PARALLEL ROWS OF PLASTIC COVERED LOOPS, THE WALLS OF SAID CHANNELS FORMED BY SAID TWO ROWS OF PLASTIC COVERED LOOPS.

References Cited (Backward Citations)

US2508774A Cited
US2715914A Cited
US2825365A Cited
US2683466A Cited
US2813063A Cited
US2807912A Cited
US2848389A Cited
US2822857A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-10-30 1965-05-01 1965-10-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-10-30 1969-05-01 1969-10-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-10-30 1973-05-01 1973-10-31 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag