US1654093A - Pump-rod lift for windmills - Google Patents
Pump-rod lift for windmills Download PDFInfo
- Publication number
- US1654093A US1654093A US142083A US14208326A US1654093A US 1654093 A US1654093 A US 1654093A US 142083 A US142083 A US 142083A US 14208326 A US14208326 A US 14208326A US 1654093 A US1654093 A US 1654093A
- Authority
- US
- United States
- Prior art keywords
- pump rod
- tbe
- pump
- pinion
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D15/00—Transmission of mechanical power
- F03D15/10—Transmission of mechanical power using gearing not limited to rotary motion, e.g. with oscillating or reciprocating members
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18056—Rotary to or from reciprocating or oscillating
- Y10T74/18088—Rack and pinion type
Definitions
- the general obj eet o A the present invention il'irely @imple iiiieebeiiiem Wberelgig.7 the piiiiip ifod i? f be lifted by tbe otetioii ot tie eheift eiipportiep; the Wind eilieei eed i inert/lier obieet ⁇ is to provide means wbeeby tbe pump iiod eiey be ea'eeecl to deeeeiid et e Lejieetei :rete oii speed theo it eseeiicle.
- rliiotliei object ieto provide o "mechanical movement Wbieb will Secure i reeilgii'oeetuioii o'lftbe rod :trom the rotation ot' e driving ebett Sind iii 'tliie eolirieeti ro to provide means Wberebye i'iioreiiieiit of elle rod ie one direction will be :it e greater relie oi epeed than e iiioveii'ieiit oi" tbe rod in inV opposite direction.
- Fie l is eeetioii oie. tbe lime infie o'lE ui'e l, looking in libe direction of the arrows, tbe ironie mid pump iod beine; omitted;
- Fig is e fregmentzil eeetioii on the line 5"-5 oitFigejlire l, the driven shaft and its driven gears being omitted;
- Fig. l() ie e.- 'treqiiientel elevation oi' the pump rod guide eliowiiigi; ope manner ol ii'ioiiiitiiigi; tlie guide roilere itlel'erring; to tbe (limi/ings l0 desigpgnetes e et treme, Wliieliis: eliowii ee rectangular iii foi ro but may oe ot elije ssulteble form ory eojeetmieti-op.
- Tliie niej be mounted upon t 1e 'Wiiidiiiili tower or other Suppoi't in my suitable momie-r. Extending; through this ieee et e pomp fred reet-iop. i5,
- ilileo mounted lipoii tlie ilfroiiie l0 is e driven elieilit l?" Wliieli eei'riee opoii it and relotireljiY lerge ,qeei Wheel i8, .eee FiV re 5. liso moiirrted upon the #heeft l? md preteleblliT eiie'eeed therewith by e.
- a spring 26 which, as illustrated, is flat and is disposed in the path of movement of the teeth 1G on pump rod l5 and is mounted at the lower. end of the supporting frame l0.
- This spring as shown in Fig- 'ure 9, is mounted upon a-yoke 27, the ends rod or will have a tendency to start the rod upward.
- This spring not only cushions and reacts against the pump rod but assists in securing a quick return after ythe down stroke of the pump rod.
- This quick return is secured through the use of the large segment gear 2O which engages with the pinion 23 and reverses the movement of the rack.
- One of the principal objects of this mechanism is that it lsaves power as well as increases vthe amount of water pumped, due to the construction of the mechanism and the quick return.
- a pump rod lift comprising a supporting frame, a constantly operated driving shaft, ⁇ a counter shaft, a pump rod having rack teeth, intermeshing gear wheels mountedV upon the counter shaft and drive shaft,
- a pump rod lifting mechanism for mills comprising a supporting frame, a driving shaft mounted upon the supporting frame, a driven shaft mounted upon the supporting frame, a pump rod having rack teeth, a piu- .ion'mounted upon the driving shaft, a relatively large gear wheel mounted upon the driven yshaft andrmeshing with said pinion,
- segmental gear mounted upon the driven shaft and intermittently engrI ig the rack teeth, a pinion loosely mounted upon the driving shaft, a sleeve carried thereby, a second pinion mounted upon the sleeve and engaging the rack teeth of the pump rod, and a relatively large segmental gear mounted upon the driven shaft-t and engaging said second named pinion at times when the tiistnamed segmental ucar is out of engagement with the rack har.
- a pump rod lifting mechanism for mills comprising a supporting frame, a driving shaft mounted upon the supporting frame, driven shaft mounted upon the supporting frame, a pump rod having rack teeth, a pinion mounted upon the driving shaft, a relatively large gear wheel mounted upon the driven shaft and meshing with said pinion, a segmental gear mounted upon the driven shaft and intermittently engaging the rack teeth, a pinion loosely mounted upon the driving shaft, a sleeve carried thereby, a second pinion mounted upon the sleeve and engaging the raek teeth of the pump rod, and a relatively large segmental gear mounted upon the driven shaft and engaging ⁇ said second named pinion at times when the first named segmental gear is out of engagement with the rack har, the last named segment gear being adjustable upon the shaft on which it is mounted.
- a pump rod lifting mechanism a supporting frame, a vertically rcciproeatahlc pump. rod, the pump rod having rack teeth,
- gear wheels having teeth engaging the pump rod
- a driving flniftv means operated h v the driving shaft for rotating said gear wheels in opposite directions to cause the reciprocation of the pump rod
- means for enshioning the pump rod at the end ol' its downward stroke and causing a return impulse to he transmitted to the pump iod comprising a spring having its free end disposed in the path of movement; ot the lowest tooth oi the pump rod, and a spring supported vohe upon which the spring is mounted.
- a pump rod lifting mechanism i vertically reciprocatahle pump rod, a driving shaft, means operated by the driving shaft and causing the reciprocation of the pump rod, and means for cushioning the pump rod at the end of its downward slrolie and causing a return impuli-ry to he transmitted to the pump rod comprising a spring having its tree end disposed in the path 'of movement of a portion o f the pump rod, and a spring supported yoke upon which the spring isf-mounted.
Description
Dern 27, 1927.
W. G. REID PUMP ROD ILIFT FOR WINDMILLS Filed Oct. 16. 1926 2 Smets-Shen 1 lA `1. x 2/ M d f/o .m Q d. wf 5 l n a Hi 6 H ,m H175 ATTORNEY.
2 Sheath-Sheet 2 IN V EN TOR.
ATTORNEY.
Dec. 27, 1927.
W. G. REID Puur ROD LIFT Fon wINDMILLs Filed oct. 16. 1926 MY/zm 671139122 lli Il (l `is to provide a re,
Feteiited Dee. Zilli', lfm?.
'WILLIAM Gr. REID, OFROGGEFL UULRAD.
i PUMP-ROD LIFT FOR XVINDMILLS.
Application llefl eteber le, "19ML "lbis iiweiitioii relzrtee to derieee for raie ii or lowering; pump rode mid particularly to meebeiiismi need iii eoniiee'tion with :i
dmili 'for libie purpose.
The general obj eet o A the present invention il'irely @imple iiiieebeiiiem Wberelgig.7 the piiiiip ifod i? f be lifted by tbe otetioii ot tie eheift eiipportiep; the Wind eilieei eed i inert/lier obieet `is to provide means wbeeby tbe pump iiod eiey be ea'eeecl to deeeeiid et e Lejieetei :rete oii speed theo it eseeiicle.
rliiotliei object ieto provide o "mechanical movement Wbieb will Secure i reeilgii'oeetuioii o'lftbe rod :trom the rotation ot' e driving ebett sind iii 'tliie eolirieeti ro to provide means Wberebye i'iioreiiieiit of elle rod ie one direction will be :it e greater relie oi epeed than e iiioveii'ieiit oi" tbe rod in inV opposite direction.
@their objects will appear iii the course of tlie following` deeeriptioii.
illy invention ie illeetii'ated iii tilieeeeoi'n'- peiijriiig; drawings Wliereiii z-- Fieiire 'i e ilroiit elewitioe `oil tbe pump rod littn 'lilie Wind Wheel being omitted;
' Fie; 2 ie Vertical eeotioii on the line 2 2 .igure l;
Fig'. 3 i-l-3 oit Figure l, Aooliiiig iii the direction ot tbe arrows;
Fie l is eeetioii oie. tbe lime infie o'lE ui'e l, looking in libe direction of the arrows, tbe ironie mid pump iod beine; omitted;
Fig; is e fregmentzil eeetioii on the line 5"-5 oitFigejlire l, the driven shaft and its driven gears being omitted;
Fig. 6 ie e i'regiiieiitfil eeetioii on tlie line G-G of Figure l, looking in the direction of tbe eiiorve;
7" ie e eeetion. on the line 7-7 of Figeure l;
8 ie e section oiithe line 8-8 of Fimiii'e `t);
Figo". 9 ie :in elevatioii oit the cushioning; meme;
Fig. l() ie e.- 'treqiiientel elevation oi' the pump rod guide eliowiiigi; ope manner ol ii'ioiiiitiiigi; tlie guide roilere itlel'erring; to tbe (limi/ings l0 desigpgnetes e et treme, Wliieliis: eliowii ee rectangular iii foi ro but may oe ot elije ssulteble form ory eojeetmieti-op. Tliie niej; be mounted upon t 1e 'Wiiidiiiili tower or other Suppoi't in my suitable momie-r. Extending; through this ieee et e pomp fred reet-iop. i5,
)le mounted iipoii e is e transverse eeetion on the liiie Serial Ilifo. 14.51083.
,Frome lll mid mounted in bem-inge therein is tlie rlrirmgi; eiwit l l wliiell ie driven trom tbe 'wind wheely not elioWiL Carried Upon (Elie iframe l0 in :mr euiteble marinier ie e haring bermjiiimI ruilbiii which :ire mounted the rollei'e l-l which beer tbe rear l ".,oiit :tace of wliieli ie .Eormed with reeli teeth lli.
ilileo mounted lipoii tlie ilfroiiie l0 is e driven elieilit l?" Wliieli eei'riee opoii it and relotireljiY lerge ,qeei Wheel i8, .eee FiV re 5. liso moiirrted upon the #heeft l? md preteleblliT eiie'eeed therewith by e. eet eorerr l@v ie e iiiomited upon to the pump rod ie :i f in llileljiire tliie er Q1 lowing; teetli over zipproniiimtely liel'li ot its eilelliriteroeee sind being; inouiilod i'for rotation Willi the ebelt l?.
,llF V7ed Upon the elioilt l.; ie tbe pinion see lire 4l irliieli me ee with tlie weer rrliee i8 et ell timee aliid r moi ed iipoii ltlie ebelt lll el pi oii EN r mieli pinion u iliieli oleo eer-L rrlieel ilo lieviiiejtiie epd bereetli lli. iii tbe direction of tbe zirroev iii riire inurl power ie eemiiiroi'ieel'ed from piirioo j 2 lo tbe eer wheel l@ eed time to tbe eeegoieiito l @eer This eegnientel gear revolves iii tbe direction of the arrow in FfV are Q :rofl lite the pump rod until tbe lee tootli o'lf tliie eeejiiieiitel geur eefzipee from tbe teetli on. the pump rod. At tliie time ille eegpiieiit `2O Wliieli is rotating iii tbe direction of the errorv iii Figure ii, engages; the pinion E23 eind this rotates tbe weer Wheel Q5 iii :i re'rerie dii'eetioii to the eee-mentali :gi-oei1 mid cerises the descent ol' tbe pump rod lnfieiiiueli as the Segment is ott reletirely .lergfge diameter and the gear Wlieel i8 olE relatively large diameter tothe pinion E22, it is obriorle that tbe ripvmrd moroie eet oli the pump rod will be relotivel)T elo *i eiiffi llie clowe'werdiiiorement ot tbe pump rod rel-elireljlT ifeel'. After the lest tooth olf tlie siegen-intel geei- QO dieeiigegee from tl e pinion Q53, the pinion 2l T opposite eliown iiee upon it tlie o @eine diziiiieter rie tlie e"eer relied ing 'teeth me bine; ir
'libe eimft lll i'otel `will again eiigagie the reeli teetli oit tliepump viously stated so that the exact position of this vsegmental gear can he determined for the correct operation.
In order to provide for cushioning the downward movement of the pump rod at the end of its stroke and to provide means acting to start the rod hack again, I have provided a spring 26 which, as illustrated, is flat and is disposed in the path of movement of the teeth 1G on pump rod l5 and is mounted at the lower. end of the supporting frame l0. This spring, as shown in Fig- 'ure 9, is mounted upon a-yoke 27, the ends rod or will have a tendency to start the rod upward. This spring not only cushions and reacts against the pump rod but assists in securing a quick return after ythe down stroke of the pump rod. This quick return is secured through the use of the large segment gear 2O which engages with the pinion 23 and reverses the movement of the rack. One of the principal objects of this mechanism is that it lsaves power as well as increases vthe amount of water pumped, due to the construction of the mechanism and the quick return.
Iv claim 1. A pump rod lift comprising a supporting frame, a constantly operated driving shaft,` a counter shaft, a pump rod having rack teeth, intermeshing gear wheels mountedV upon the counter shaft and drive shaft,
`a segmental gear wheel on the counter shaft intermittently engaging the rack teeth, a pinion loosely mounted upon the driving shaft, a second pinion mounted on the driving shaft and meshing with the rack teeth on the pumprod and rotatable with the first named pinion independently of the driving shaft, and a segment gear mounted ,upon the counter shaft and engaging the first named pinion at a time kwhen the teeth of the first named segment gear are out of mesh with the teeth of the pump rod.
2. A pump rod lifting mechanism for mills comprising a supporting frame, a driving shaft mounted upon the supporting frame, a driven shaft mounted upon the supporting frame, a pump rod having rack teeth, a piu- .ion'mounted upon the driving shaft, a relatively large gear wheel mounted upon the driven yshaft andrmeshing with said pinion,
a segmental gear mounted upon the driven shaft and intermittently engrI ig the rack teeth, a pinion loosely mounted upon the driving shaft, a sleeve carried thereby, a second pinion mounted upon the sleeve and engaging the rack teeth of the pump rod, and a relatively large segmental gear mounted upon the driven shaft-t and engaging said second named pinion at times when the tiistnamed segmental ucar is out of engagement with the rack har.
3. A pump rod lifting mechanism for mills comprising a supporting frame, a driving shaft mounted upon the supporting frame, driven shaft mounted upon the supporting frame, a pump rod having rack teeth, a pinion mounted upon the driving shaft, a relatively large gear wheel mounted upon the driven shaft and meshing with said pinion, a segmental gear mounted upon the driven shaft and intermittently engaging the rack teeth, a pinion loosely mounted upon the driving shaft, a sleeve carried thereby, a second pinion mounted upon the sleeve and engaging the raek teeth of the pump rod, and a relatively large segmental gear mounted upon the driven shaft and engaging` said second named pinion at times when the first named segmental gear is out of engagement with the rack har, the last named segment gear being adjustable upon the shaft on which it is mounted.
4. In a pump rod lifting mechanism, a supporting frame, a vertically rcciproeatahlc pump. rod, the pump rod having rack teeth,
gear wheels having teeth engaging the pump rod, a driving flniftv means operated h v the driving shaft for rotating said gear wheels in opposite directions to cause the reciprocation of the pump rod, and means for enshioning the pump rod at the end ol' its downward stroke and causing a return impulse to he transmitted to the pump iod comprising a spring having its free end disposed in the path of movement; ot the lowest tooth oi the pump rod, and a spring supported vohe upon which the spring is mounted.
5. In a pump rod lifting mechanism, :i vertically reciprocatahle pump rod, a driving shaft, means operated by the driving shaft and causing the reciprocation of the pump rod, and means for cushioning the pump rod at the end of its downward slrolie and causing a return impuli-ry to he transmitted to the pump rod comprising a spring having its tree end disposed in the path 'of movement of a portion o f the pump rod, and a spring supported yoke upon which the spring isf-mounted.
In testimony whereof I hereunto alli.\ 4 my signature.
VILLIAM G. REID.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US142083A US1654093A (en) | 1926-10-16 | 1926-10-16 | Pump-rod lift for windmills |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US142083A US1654093A (en) | 1926-10-16 | 1926-10-16 | Pump-rod lift for windmills |
Publications (1)
Publication Number | Publication Date |
---|---|
US1654093A true US1654093A (en) | 1927-12-27 |
Family
ID=22498489
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US142083A Expired - Lifetime US1654093A (en) | 1926-10-16 | 1926-10-16 | Pump-rod lift for windmills |
Country Status (1)
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US (1) | US1654093A (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2692146A (en) * | 1951-02-14 | 1954-10-19 | Trailmobile Inc | Stabilized coupling mechanism for tractor-trailer vehicles |
US4275866A (en) * | 1980-03-27 | 1981-06-30 | Newcon Company | Operator for a gate valve |
US6039508A (en) * | 1997-07-25 | 2000-03-21 | American Piledriving Equipment, Inc. | Apparatus for inserting elongate members into the earth |
US6431795B2 (en) | 1997-07-25 | 2002-08-13 | American Piledriving Equipment, Inc. | Systems and methods for inserting wick drain material |
US6447036B1 (en) | 1999-03-23 | 2002-09-10 | American Piledriving Equipment, Inc. | Pile clamp systems and methods |
US6543966B2 (en) | 1997-07-25 | 2003-04-08 | American Piledriving Equipment, Inc. | Drive system for inserting and extracting elongate members into the earth |
US20100303552A1 (en) * | 2009-05-27 | 2010-12-02 | American Piledriving Equipment, Inc. | Helmet adapter for pile drivers |
US7854571B1 (en) | 2005-07-20 | 2010-12-21 | American Piledriving Equipment, Inc. | Systems and methods for handling piles |
US20110162859A1 (en) * | 2010-01-06 | 2011-07-07 | White John L | Pile driving systems and methods employing preloaded drop hammer |
US20120073392A1 (en) * | 2010-09-23 | 2012-03-29 | Delaware Capital Formation, Inc. | Actuating Device |
US8434969B2 (en) | 2010-04-02 | 2013-05-07 | American Piledriving Equipment, Inc. | Internal pipe clamp |
US8496072B2 (en) | 2002-09-17 | 2013-07-30 | American Piledriving Equipment, Inc. | Preloaded drop hammer for driving piles |
US9249551B1 (en) | 2012-11-30 | 2016-02-02 | American Piledriving Equipment, Inc. | Concrete sheet pile clamp assemblies and methods and pile driving systems for concrete sheet piles |
US9371624B2 (en) | 2013-07-05 | 2016-06-21 | American Piledriving Equipment, Inc. | Accessory connection systems and methods for use with helical piledriving systems |
US9957684B2 (en) | 2015-12-11 | 2018-05-01 | American Piledriving Equipment, Inc. | Systems and methods for installing pile structures in permafrost |
US10273646B2 (en) | 2015-12-14 | 2019-04-30 | American Piledriving Equipment, Inc. | Guide systems and methods for diesel hammers |
US10392871B2 (en) | 2015-11-18 | 2019-08-27 | American Piledriving Equipment, Inc. | Earth boring systems and methods with integral debris removal |
US10538892B2 (en) | 2016-06-30 | 2020-01-21 | American Piledriving Equipment, Inc. | Hydraulic impact hammer systems and methods |
-
1926
- 1926-10-16 US US142083A patent/US1654093A/en not_active Expired - Lifetime
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2692146A (en) * | 1951-02-14 | 1954-10-19 | Trailmobile Inc | Stabilized coupling mechanism for tractor-trailer vehicles |
US4275866A (en) * | 1980-03-27 | 1981-06-30 | Newcon Company | Operator for a gate valve |
US6039508A (en) * | 1997-07-25 | 2000-03-21 | American Piledriving Equipment, Inc. | Apparatus for inserting elongate members into the earth |
US6431795B2 (en) | 1997-07-25 | 2002-08-13 | American Piledriving Equipment, Inc. | Systems and methods for inserting wick drain material |
US6543966B2 (en) | 1997-07-25 | 2003-04-08 | American Piledriving Equipment, Inc. | Drive system for inserting and extracting elongate members into the earth |
US6447036B1 (en) | 1999-03-23 | 2002-09-10 | American Piledriving Equipment, Inc. | Pile clamp systems and methods |
US8496072B2 (en) | 2002-09-17 | 2013-07-30 | American Piledriving Equipment, Inc. | Preloaded drop hammer for driving piles |
US8070391B2 (en) | 2005-07-20 | 2011-12-06 | American Piledriving Equipment, Inc. | Systems and methods for handling piles |
US7854571B1 (en) | 2005-07-20 | 2010-12-21 | American Piledriving Equipment, Inc. | Systems and methods for handling piles |
US20110116874A1 (en) * | 2005-07-20 | 2011-05-19 | American Piledriving Equipment, Inc. | Systems and methods for handling piles |
US20100303552A1 (en) * | 2009-05-27 | 2010-12-02 | American Piledriving Equipment, Inc. | Helmet adapter for pile drivers |
US8763719B2 (en) | 2010-01-06 | 2014-07-01 | American Piledriving Equipment, Inc. | Pile driving systems and methods employing preloaded drop hammer |
US20110162859A1 (en) * | 2010-01-06 | 2011-07-07 | White John L | Pile driving systems and methods employing preloaded drop hammer |
US8434969B2 (en) | 2010-04-02 | 2013-05-07 | American Piledriving Equipment, Inc. | Internal pipe clamp |
US20120073392A1 (en) * | 2010-09-23 | 2012-03-29 | Delaware Capital Formation, Inc. | Actuating Device |
US9199358B2 (en) * | 2010-09-23 | 2015-12-01 | Delaware Capital Formation, Inc. | Actuating device |
US9249551B1 (en) | 2012-11-30 | 2016-02-02 | American Piledriving Equipment, Inc. | Concrete sheet pile clamp assemblies and methods and pile driving systems for concrete sheet piles |
US9371624B2 (en) | 2013-07-05 | 2016-06-21 | American Piledriving Equipment, Inc. | Accessory connection systems and methods for use with helical piledriving systems |
US10392871B2 (en) | 2015-11-18 | 2019-08-27 | American Piledriving Equipment, Inc. | Earth boring systems and methods with integral debris removal |
US9957684B2 (en) | 2015-12-11 | 2018-05-01 | American Piledriving Equipment, Inc. | Systems and methods for installing pile structures in permafrost |
US10273646B2 (en) | 2015-12-14 | 2019-04-30 | American Piledriving Equipment, Inc. | Guide systems and methods for diesel hammers |
US10538892B2 (en) | 2016-06-30 | 2020-01-21 | American Piledriving Equipment, Inc. | Hydraulic impact hammer systems and methods |
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