Patent US4367627A successfully refreshed from Google Patents.
← Back to Patent Explorer
US4367627A Expired / Lapsed US ⏱️ 0.0 years remaining

Systems for utilizing the energy of a moving air current

Assignee: Individual
•
Filing: 1980-06-30
•
Granted: 1983-01-11
•
Expires: 2000-06-30
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A system for utilizing the energy of a moving air current comprises a chimney through which an air current is induced by barometric or temperature differences between the top and the bottom of the chimney and/or by wind passing over the top of the chimney. A rotor is arranged in the air current and drives an engine. When induced by a wind, the induced air current has a speed which is greater than the wind speed.

Inventors

  • 👤 Gisberto Pretini

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 22:34
CPC Classifications
F; F03; F03D; F03D1/00; F03D1/04; F03D9/00; F03D9/30; F03D9/34; F03D9/35; F05; F05B; F05B2240/00; F05B2240/10; F05B2240/13; F05B2240/131; F05B2240/20; F05B2240/21; F05B2240/221; F05B2240/2212; F05B2240/90; F05B2240/91; F05B2240/911; F05B2240/9111; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72; Y02E10/728

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 218 words
An energy utilization system comprising: a plurality of chimneys arranged side by side in a row, said chimneys extending upwardly along and conforming to a natural hilly slope, said row lying across the slope; said chimneys each having a bottom portion extending substantially horizontally and having a lower inlet mouth; said chimneys each including a top portion extending substantially vertical, each top portion having a substantially horizontally lined outlet mouth for inducing an air current into each lower inlet mouth and through said chimneys to each upper outlet mouth respectively; means on said chimney for absorbing external heat for increasing a temperature of the air current and thus increasing the air current in said chimneys; a single engine mounted on said chimneys at said bottom portions thereof and in a path of the air current; said engine comprising a rotor mounted for rotation about a horizontal axis and including a plurality of radially extending blades each being concave in a direction opposite the air current adjacent the tip of each inlet mouth; and a deflector upstream of the air current positioned adjacent a bottom of each inlet mouth and in front of a bottom portion of said rotor whereby the air current is concentrated at a top of said rotor to rotate said rotor and drive said engine.
Claim 2
Dependent Claim 218 words
An energy utilization system comprising: a plurality of chimneys arranged side by side in a row, said chimneys extending upwardly along and conforming to a natural hilly slope, said row lying across the slope; said chimneys each having a bottom portion extending substantially horizontally and having a lower inlet mouth; said chimneys each including a top portion extending substantially vertical, each top portion having a substantially horizontally lined outlet mouth for inducing an air current into each lower inlet mouth and through said chimneys to each upper outlet mouth respectively; means on said chimney for absorbing external heat for increasing a temperature of the air current and thus increasing the air current in said chimneys; a single engine mounted on said chimneys at said bottom portions thereof and in a path of the air current; said engine comprising a rotor mounted for rotation about a horizontal axis and including a plurality of radially extending blades each being concave in a direction opposite the air current adjacent the tip of each inlet mouth; and a deflector upstream of the air current positioned adjacent a bottom of each inlet mouth and in front of a bottom portion of said rotor whereby the air current is concentrated at a top of said rotor to rotate said rotor and drive said engine.

References Cited (Backward Citations)

US401516A Cited
US757800A Cited
US3048006A Cited
US3436908A Cited
US3936652A Cited
US4033126A Cited
FR2307982A1 Cited
DE2755959A1 Cited
US4205235A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1986-01-10 1986-07-12 1987-01-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1990-01-10 1990-07-12 1991-01-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1994-01-10 1994-07-12 1995-01-11 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag