US4249867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windmill having counterbalancing mechanism
Assignee: SPRINGBURST TECHNOLOGIES Corp A CORP OF NY
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Filing: 1979-05-14
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Granted: 1981-02-10
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Expires: 1999-05-14
Abstract
Abstract A windmill is disclosed having a counterbalancing mechanism which allows it to pump effectively under minimal wind velocity. The windmill includes blades which undergo rotational movement when actuated by the wind, a transmission for converting rotational movement of the blades to reciprocal motion of a pumping rod, a support structure or tower for supporting the blades, transmission, and rod, a counterbalancing mechanism functionally connected to the support structure and rod such that the weight of the rod and liquid column within the well is effectively counterbalanced, and a collar surrounding the rod and supported by the support structure to prevent vibration of the rod during reciprocation. The counterbalancing mechanism may include a pair of rods which are pivotably supported on the supporting structure of the windmill and pivotably mounted to the pumping rod. Weights are attached to the portions of the rods extending exteriorly from the supporting structure. The weights are appropriately positioned with respect to the pivot on the support structure to counterbalance the weight of the pumping rod and liquid column.
Inventors
- 👤 Donald F. Cunningham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:21
CPC Classifications
F; F04; F04B; F04B47/00; F04B47/14; F03; F03D; F03D15/00; F03D15/10; F04B17/00; F04B17/02; Y; Y02; Y02E; Y02E10/00; Y02E10/70; Y02E10/72; Y02P; Y02P80/00; Y02P80/10; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2154; Y10T74/2156
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
242 words
A windmill for pumping water from a well having a casing extending into the earth and a liquid column within said casing, comprising: a tower including a plurality of beams; a rotor mounted near the top of said tower and adapted for rotating in the presence of wind; a pumping rod extending into the casing of the well; means operatively connected between said rotor and said pumping rod for converting rotational movement of said rotor into reciprocal motion of said pumping rod, and counterbalancing means for counterbalancing the weight of said pumping rod and the weight of a liquid column within the well casing in which the pumping rod is adapted to reciprocate including a first support member rigidly secured to said pumping rod, first and second cores within said first support member; first and second pivotable members having, respectively, first and second cylindrically shaped portions extending within said cores, respectively, and pivotable therein, and first and second bores substantially perpendicular to said cylindrically shaped portions; first and second rods having portions thereof slidably positioned, respectively, within said bores; third and fourth pivotable members pivotably secured, respectively, to horizontal beams on opposite sides of said tower, said first and second rods having end portions fixedly secured, respectively, to said third and fourth pivotable members; and counterbalancing weights fixedly secured to said third and fourth pivotable members, respectively, said weights adapted for counterbalancing the weight of said pumping rod and said liquid column.
Claim 2
Dependent Claim
242 words
A windmill for pumping water from a well having a casing extending into the earth and a liquid column within said casing, comprising: a tower including a plurality of beams; a rotor mounted near the top of said tower and adapted for rotating in the presence of wind; a pumping rod extending into the casing of the well; means operatively connected between said rotor and said pumping rod for converting rotational movement of said rotor into reciprocal motion of said pumping rod, and counterbalancing means for counterbalancing the weight of said pumping rod and the weight of a liquid column within the well casing in which the pumping rod is adapted to reciprocate including a first support member rigidly secured to said pumping rod, first and second cores within said first support member; first and second pivotable members having, respectively, first and second cylindrically shaped portions extending within said cores, respectively, and pivotable therein, and first and second bores substantially perpendicular to said cylindrically shaped portions; first and second rods having portions thereof slidably positioned, respectively, within said bores; third and fourth pivotable members pivotably secured, respectively, to horizontal beams on opposite sides of said tower, said first and second rods having end portions fixedly secured, respectively, to said third and fourth pivotable members; and counterbalancing weights fixedly secured to said third and fourth pivotable members, respectively, said weights adapted for counterbalancing the weight of said pumping rod and said liquid column.
Claim 3
Dependent Claim
31 words
A windmill as described in claim 1 wherein said counterbalancing weights are attached to third and fourth rods extending outwardly of said tower from said third and fourth pivotable members, respectively.
Claim 4
Dependent Claim
30 words
A windmill as described in claim 1 further including a collar surrounding said pumping rod, said collar being fixedly secured to said tower to minimize vibration of said pumping rod.
Claim 5
Dependent Claim
50 words
A windmill as described in claim 1 further including a second support member fixedly attached to said pumping rod, a guide rod pivotably secured to said second support member and having an end telescoped within a pipe; and said pipe being pivotably secured to a horizontal beam of said tower.
Claim 6
Dependent Claim
52 words
A windmill as described in claim 1 wherein bearings are provided between said cylindrically shaped portions of said first and second pivotable members and said first support member, said first and second pivotable members and said first and second rods, and said third and fourth pivotable members and said horizontal beams, respectively.
Claim 7
Dependent Claim
172 words
A windmill comprising; a tower including a plurality of beams; a rotor mounted near the top of said tower and adapted for rotating in the presence of wind; a pumping rod; means operatively connected between said rotor and said pumping rod for converting rotational movement of said rotor into reciprocal motion of said pumping rod, and counterbalancing means including a first support member rigidly secured to said pumping rod, first and second cores within said first support member; first and second pivotable members having, respectively, first and second cylindrically shaped portions extending within said cores, respectively, and pivotable therein, and first and second bores substantially perpendicular to said cylindrically shaped portions; first and second rods having portions thereof slidably positioned, respectively, within said bores; third and fourth pivotable members pivotably secured, respectively, to horizontal beams on opposite sides of said tower, said first and second rods having end portions fixedly secured, respectively, to said third and fourth pivotable members; and counterbalancing weights fixedly secured to said third and fourth pivotable members, respectively.
Claim 8
Dependent Claim
172 words
A windmill comprising; a tower including a plurality of beams; a rotor mounted near the top of said tower and adapted for rotating in the presence of wind; a pumping rod; means operatively connected between said rotor and said pumping rod for converting rotational movement of said rotor into reciprocal motion of said pumping rod, and counterbalancing means including a first support member rigidly secured to said pumping rod, first and second cores within said first support member; first and second pivotable members having, respectively, first and second cylindrically shaped portions extending within said cores, respectively, and pivotable therein, and first and second bores substantially perpendicular to said cylindrically shaped portions; first and second rods having portions thereof slidably positioned, respectively, within said bores; third and fourth pivotable members pivotably secured, respectively, to horizontal beams on opposite sides of said tower, said first and second rods having end portions fixedly secured, respectively, to said third and fourth pivotable members; and counterbalancing weights fixedly secured to said third and fourth pivotable members, respectively.
Claim 9
Dependent Claim
31 words
A windmill as described in claim 6 wherein said counterbalancing weights are attached to third and fourth rods extending outwardly of said tower from said third and fourth pivotable members, respectively.
Claim 10
Dependent Claim
30 words
A windmill as described in claim 6 further including a collar surrounding said pumping rod, said collar being fixedly secured to said tower to minimize vibration of said pumping rod.
Claim 11
Dependent Claim
50 words
A windmill as described in claim 6 further including a second support member fixedly attached to said pumping rod, a guide rod pivotably secured to said second support member and having an end telescoped within a pipe; and said pipe being pivotably secured to a horizontal beam of said tower.
Claim 12
Dependent Claim
52 words
A windmill as described in claim 6 wherein bearings are provided between said cylindrically shaped portions of said first and second pivotable member and said first support member, said first and second pivotable members and said first and second rods, and said third and fourth pivotable members and said horizontal beams, respectively.
Claim 13
Dependent Claim
174 words
A windmill comprising: a tower including a plurality of beams; a rotor mounted near the top of said tower and adapted for rotating in the presence of wind; a pumping rod; means operatively connected between said rotor and said pumping rod for converting rotational movement of said rotor into reciprocal motion of said pumping rod; counterbalancing means including a first support member fixedly secured to said pumping rod; first and second pivotable members pivotably secured to horizontal beams on opposite sides of said tower; first and second rods secured to said first and second pivotable members, respectively; first and second flexible connecting means connecting said first support member with said first and second rods at a distance from said horizontal beams; and counterbalancing weights secured to said first and second pivotable members, respectively, and a second support member fixedly attached to said pumping rods, a guide rod pivotably secured to said second support member and having an end telescoped within a pipe, said pipe being pivotably secured to a horizontal beam of said tower.
Claim 14
Dependent Claim
174 words
A windmill comprising: a tower including a plurality of beams; a rotor mounted near the top of said tower and adapted for rotating in the presence of wind; a pumping rod; means operatively connected between said rotor and said pumping rod for converting rotational movement of said rotor into reciprocal motion of said pumping rod; counterbalancing means including a first support member fixedly secured to said pumping rod; first and second pivotable members pivotably secured to horizontal beams on opposite sides of said tower; first and second rods secured to said first and second pivotable members, respectively; first and second flexible connecting means connecting said first support member with said first and second rods at a distance from said horizontal beams; and counterbalancing weights secured to said first and second pivotable members, respectively, and a second support member fixedly attached to said pumping rods, a guide rod pivotably secured to said second support member and having an end telescoped within a pipe, said pipe being pivotably secured to a horizontal beam of said tower.
Claim 15
Dependent Claim
31 words
A windmill as described in claim 11 wherein said counterbalancing weights are attached to third and fourth rods extending outwardly of said tower from said first and second pivotable members, respectively.
Claim 16
Dependent Claim
30 words
A windmill as described in claim 11 further including a collar surrounding said pumping rod, said collar being fixedly secured to said tower to minimize vibration of said pumping rod.
Claim 17
Dependent Claim
23 words
A windmill as described in claim 11 wherein bearings are provided between said first and second pivotable members, respectively, and said horizontal beams.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-02-10 | 1984-08-11 | 1985-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-10 | 1988-08-11 | 1989-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-10 | 1992-08-11 | 1993-02-10 | $7700.00 | Window Closed / Lapsed |