US20050049070A1 - Golf putting practice apparatus - Google Patents

Golf putting practice apparatus Download PDF

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Publication number
US20050049070A1
US20050049070A1 US10/949,265 US94926504A US2005049070A1 US 20050049070 A1 US20050049070 A1 US 20050049070A1 US 94926504 A US94926504 A US 94926504A US 2005049070 A1 US2005049070 A1 US 2005049070A1
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US
United States
Prior art keywords
frame
putting practice
practice apparatus
golf putting
height adjusting
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.)
Abandoned
Application number
US10/949,265
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English (en)
Inventor
Hyun Ju Lee
Yun Lee
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
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Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Publication of US20050049070A1 publication Critical patent/US20050049070A1/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B67/00—Sporting games or accessories therefor, not provided for in groups A63B1/00 - A63B65/00
    • A63B67/02—Special golf games, e.g. miniature golf or golf putting games played on putting tracks; putting practice apparatus having an elongated platform as a putting track
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00—Training appliances or apparatus for special sports
    • A63B69/36—Training appliances or apparatus for special sports for golf
    • A63B69/3676—Training appliances or apparatus for special sports for golf for putting
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00—Training appliances or apparatus for special sports
    • A63B69/36—Training appliances or apparatus for special sports for golf
    • A63B69/3661—Mats for golf practice, e.g. mats having a simulated turf, a practice tee or a green area
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B67/00—Sporting games or accessories therefor, not provided for in groups A63B1/00 - A63B65/00
    • A63B67/02—Special golf games, e.g. miniature golf or golf putting games played on putting tracks; putting practice apparatus having an elongated platform as a putting track
    • A63B2067/025—Special golf games, e.g. miniature golf or golf putting games played on putting tracks; putting practice apparatus having an elongated platform as a putting track with incorporated means acting on the track surface for varying its topography, e.g. slope
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
    • A63B2225/09—Adjustable dimensions
    • A63B2225/093—Height
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B47/00—Devices for handling or treating balls, e.g. for holding or carrying balls
    • A63B47/02—Devices for handling or treating balls, e.g. for holding or carrying balls for picking-up or collecting
    • A63B47/025—Installations continuously collecting balls from the playing areas, e.g. by gravity, with conveyor belts

Definitions

  • the present invention relates to a golf putting practice apparatus with a tiltable putting mat resembling a real golf course environment.
  • One round in golf game consists typically of 18 holes and each green has varied slopes or lies around its hole cup. In fact there isn't any identical slope around the hole cup.
  • Such known golf putting apparatus can be used for pleasure but not for effective putting practice. Accordingly, there is a need to provide a golf putting practice apparatus having a mat with various slopes or lies resembling the real green.
  • FIG. 1 is a perspective view of one exemplary embodiment of the present invention.
  • FIG. 2 is a cross sectional view illustrating a golf ball retrieval means of the apparatus of FIG. 1 .
  • FIG. 3 is a cross sectional side view of the resonator of FIG. 2 of the present invention.
  • FIG. 4 is a cross sectional view illustrating a construction of the frame-height adjusting member of the present invention.
  • FIG. 5 is a partial and perspective view illustrating a construction of the board-height adjusting member for adjusting the height of at least some of the elongate boards of the present invention.
  • FIG. 6 is an enlarged cross sectional view taken along line A-A of FIG. 5 .
  • FIG. 7 is an enlarged cross sectional view taken along line B-B of FIG. 5 .
  • FIG. 8 is a partial cross sectional view illustrating the details of the board-height adjusting member of FIG. 5 .
  • FIG. 9 is an exploded perspective view illustrating the elevating member of the board-height adjusting member of FIG. 8 .
  • FIG. 10 is a partial and perspective view illustrating the board-height adjusting member fixed on the frame.
  • FIG. 11 is a plane view of the mat or artificial green illustrating various putting approach lines of the golf balls using the apparatus of the present invention.
  • FIG. 12 is a plane view of the mat or artificial green illustrating putting approach lines of the golf balls using a conventional putting apparatus.
  • the putting practice apparatus of the present invention has a putting mat or green which can be tilted and also capable of providing various lies on the mat.
  • the present invention can provide a wide variety of putting practice, such as straight line putting for beginners, putting on a tilted mat for intermediate learners, and putting on varied slopes for advanced learners and professionals.
  • the present invention provides, among others, two types of elevation or slope adjustment members. One is used for adjusting the heights of each selected side or corner of the apparatus frame on which a putting mat is placed. The other is used for adjusting the heights of particular regions in the mat selected by the practicing golfers.
  • frame ( 2 ) has a generally polygonal shape, for example, a rectangular overall shape having a suitable length (e.g., about 3 m) and width for practicing putting thereon.
  • the upper surface of the frame ( 2 ) includes an open space, and flexible mat ( 4 ) forming artificial green ( 5 ) is positioned in the open space of the frame.
  • the slopes of the artificial green ( 5 ) can be adjusted by the height adjustment mechanisms of the invention to be described herein below.
  • the upper surface of artificial green ( 5 ) has three hole cups for receiving golf balls therein, one in the center and others is in each corner side.
  • exhaust hopper ( 9 ) having an inclination for collecting and discharging balls there-through.
  • the exhaust hopper ( 9 ) connects with ball retrieval tube ( 10 ).
  • the ball retrieval tube ( 10 ) extends to a standing position of the golfer for easy retrieval of the balls exiting from ball retrieval hole ( 11 ) by the golfer.
  • Ball dropping area ( 9 a ) is formed at the ball dropping location in the exhaust hopper ( 9 ), and includes resonator ( 14 ) preferably with resonance space ( 12 ) and hole ( 13 ) for producing a light metallic sound for the golfer's entertainment when a ball hit the resonator ( 14 ).
  • This metallic sound resembles the dropping sound of a ball within the hole cup of a real golf course.
  • frame-height adjusting members ( 3 ) are disposed along the side of the frame ( 2 ), preferably at the four corners of the frame, for adjusting the height of each side or corner of the frame ( 2 ).
  • Feeder screw ( 16 ) is positioned vertically at the center of casings ( 5 ) which is fixed at the four corners of the frame ( 2 ) by fastening bolt ( 15 a ).
  • Elevating member ( 18 ) includes nut portion ( 10 ) and is positioned on the feeder screw ( 16 ) for moving up and down upon rotation of the feeder screw ( 16 ).
  • the elevating member ( 18 ) is preferably formed with two pieces combined together using fastening bolts ( 19 ) for easy assembly of the components of the frame-height adjusting members ( 3 ).
  • Vertical guide post ( 20 ) and leg member ( 22 ) are located at the lateral sides of the elevating member ( 18 ).
  • the guide post ( 20 ) guides an up-and-down movement of the elevating member ( 18 ).
  • the leg member ( 22 ) has an upper end affixed to the elevating member ( 18 ) and moves up and down upon the vertical movement of the elevating member ( 18 ) for adjusting its projecting height from the lower surface of the frame ( 2 ), thereby, enabling adjustment of the height of the particular corner of the frame from the ground.
  • the leg member ( 22 ) preferably includes a foot member or terminal support ( 21 ) attached at the lower end thereof.
  • the lower end of the leg member ( 22 ) and adjoining end of foot member ( 21 ) are respectively shaped in a hemisphere, forming a circular contacting area ( 21 a ) thereby, and the foot member ( 21 ) is secured with pin ( 23 ) to the leg member ( 22 ) enabling tilting of the foot member ( 21 ) to a certain degree.
  • This arrangement facilitates a secured positioning of the leg member ( 22 ) on the ground.
  • Cap ( 26 ) is fixed on the upper side of casing ( 15 ) by fastening bolts ( 27 ).
  • the cap ( 26 ) includes coupling holes ( 24 , 25 ) for rotatably receiving the upper ends of the feeder screw ( 16 ) and guide post ( 20 ) therein.
  • the upper end of feeder screw ( 16 ) protrudes above the coupling hole ( 24 ) of the cap ( 26 ) and includes a hexagonal or square wrench portion ( 16 a ) in order to enable rotation of the feeder screw ( 16 ) with the wrench portion by a suitable manner known in the art.
  • stopper ( 16 b ) of flange-like shape is provided so as to limit its operation range or prevent the equipment from damage occurred by excessive adjustment, for example, by the user's mistake in controlling the vertical movement of the elevating member ( 18 ).
  • a plurality of elongate members such as elongate boards ( 28 , 29 ) with a generally flat upper surface, are arranged in a row and side by side and positioned within the opened upper surface of the frame ( 2 ).
  • the elongate boards ( 28 , 29 ) are elastically connected to one another laterally by at least one elastic member such as springs ( 30 ) so that the user can arbitrary control the entire tilting or partial slopes of the artificial green ( 5 ).
  • each of the elongate boards ( 29 , 29 ) includes lateral connection holes ( 31 ) and elastic members (e.g., springs ( 30 )) are disposed within the holes for the elastic connection of the boards. Accordingly, if one of the elongate boards ( 28 , 29 ) is adjusted up or down, adjacent elongate boards follow in the same direction. Thus, the slopes around the adjusted boards become smooth without leaving noticeable steps.
  • Each of the elongate boards ( 28 , 29 ) preferably includes a plurality of engaging portions disposed between adjacent boards for preventing unwanted falling or derails of boards from the aligned surface of the boards.
  • the elongate boards include at their suitable lateral sides a plurality of protrusions ( 32 ) of generally hemisphere shape and a plurality of corresponding grooves ( 33 ) of similar shape. This construction may provide a further security in the elastic connection between the boards.
  • the putting apparatus of the invention comprises a plurality of board-height adjusting members ( 6 ) disposed along the sides of the frame ( 2 ), as illustrated in FIGS. 1 and 5 .
  • the board-height adjusting members ( 6 ) are for adjusting the heights or tilting of at least some of the elongate boards ( 28 , 29 ) connected thereto.
  • the elongate boards include connecting rod ( 34 ) extending longitudinally from both ends of the boards and are connected to the upper end of support arm ( 35 ) which is in turn connected to elevating member ( 39 ) movable up and down.
  • the board-height adjusting members ( 6 ) are disposed along the side of the frame ( 2 ) for selectively adjusting the height of each of the elongate boards ( 28 , 29 ).
  • Feeder screw ( 37 ) is positioned vertically at the center of casings ( 36 ) which is fixed at the side of the frame ( 2 ) by fastening bolt ( 36 a ).
  • Elevating member ( 39 ) includes nut portion ( 38 ) and is positioned on the feeder screw ( 37 ) for moving up and down upon rotation of the feeder screw ( 37 ).
  • the elevating member ( 39 ) is preferably formed with two pieces combined together using fastening bolts ( 40 ).
  • Vertical guide post ( 41 ) and support arm ( 35 ) are located at the lateral sides of the elevating member ( 39 ).
  • the guide post ( 41 ) guides an up-and-down movement of the elevating member ( 39 ).
  • the support arm ( 35 ) has a lower end affixed to the elevating member ( 39 ), and moves up and down upon the vertical movement of the elevating member ( 39 ) for adjusting the elevation of the elongate board ( 28 or 29 ) which is connected to the upper end of the support arm ( 35 ).
  • Cap ( 44 ) is fixed on the upper side of casing ( 36 ) by fastening bolts ( 45 ).
  • the cap ( 44 ) includes coupling holes ( 42 , 43 ) for rotatably receiving the upper ends of the feeder screw ( 37 ) and guide post ( 41 ) therein.
  • the upper end of feeder screw ( 37 ) protrudes above the coupling hole ( 42 ) of the cap ( 44 ) and includes a hexagonal or square wrench portion ( 37 a ) in order to enable rotation of the feeder screw ( 37 ) with the wrench portion by a suitable manner known in the art.
  • stopper ( 37 b ) of flange-like shape is provided so as to limit its operation range or prevent the equipment from damage occurred by excessive adjustment, for example, by the user's mistake in controlling the vertical movement of the elevating member ( 39 ).
  • the board-height adjusting members ( 6 ) are connected to the elongate boards ( 28 , 29 ) in alternating manner, such as one after another (as shown in FIG. 5 ), or one after two others.
  • Suitable mat or artificial green ( 5 ) is placed on the elongate boards ( 28 , 29 ).
  • the elongate boards ( 28 , 29 ) include side blocks ( 46 ) for preventing movement of the artificial green ( 5 ) and also for preventing the balls from falling out of the matted boards.
  • golfers can practice realistic putting simulating a real golf course, such as straight-line putting and putting on varying lies.
  • golf ball ( 8 ) when practicing straight-line putting, golf ball ( 8 ) is set at a putting position (P) of artificial green ( 5 ), and the golfer can aim on selected one among the three hole cups on the opposite side of the frame ( 2 ) and hit the ball using a putter.
  • the golfer When the golf ball enters hole cup ( 7 ), the ball falls onto resonator ( 14 ) positioned on exhaust hopper ( 9 ) and the resonator ( 14 ) produces a resonant sound. Thus, the golfer can be more excited listening to the light metallic sound like one in the real field.
  • the ball fallen on exhaust hopper ( 9 ) is discharged through ball retrieval tube ( 10 ) and ball retrieval hole ( 11 ), and reaches the standing position of the golfer.
  • the golfer can then tilt the entire mat by adjusting the heights of one or two corners of the frame ( 2 ).
  • the golfer can turn the feeder screw ( 16 ) of the frame-height adjusting member ( 3 ) by a suitable method.
  • the golfer can turn the wrench portion ( 16 a ) of the feeder screw ( 16 ) using a wrench. This makes the feeder screw ( 16 ) to rotate in a direction and the elevating member ( 18 ) moves up or down while guided by the guide post ( 20 ).
  • the leg member ( 22 ) affixed on a side of the elevating member ( 18 ) rises or falls from the frame ( 2 ).
  • the foot or terminal member ( 21 ) coupled with the leg member ( 22 ) with the pinned bolt ( 23 ) can adjust its orientation and secure the apparatus on the ground.
  • the adjusted leg member and the foot member can further support the apparatus stably even if angles between the foot member ( 21 ) and the leg member ( 22 ) is changed by inclination of the frame ( 2 ).
  • the users can adjust the heights of desired sides of the frame ( 2 ) and inclination of the artificial green ( 5 ).
  • golfers can arbitrarily adjust the slopes of particular portions of the green by manipulating any selected ones of the board-height adjusting members ( 6 ) of the invention.
  • the golfer can turn the wrench portion ( 37 a ) of the feeder screw ( 37 ), for example, using a wrench.
  • the support arm ( 35 ) affixed on a side of the elevating member ( 39 ) rises or falls relative to the frame ( 2 ).
  • the particular elongate board connected to the support arm ( 35 ) via connecting rod ( 34 ) moves up or down. This enables adjustment of the slopes of the artificial green ( 5 ) where the particular elongate board is located.
  • the upper surface of the elongate boards 28 , 29 ) can maintain a relatively smooth surface even if some of the elongate boards are adjusted as discussed above.
  • the artificial green ( 5 ) of suitable thickness and flexibility covers on the plurality of elongate boards ( 28 , 29 ), the green surface resembles one having varying slopes like the real course. As such, golfers can practice golf putting on the adjustable artificial green in various ways and aiming one of the hole cups ( 7 ) as a target as illustrated in FIG. 11 .
  • golfers can practice putting more effectively on the artificial green with adjustable slopes like one in a real course.
  • a plurality of elongate boards are connected by elastic members such as springs, and all or at least selected ones of them can adjust their height by frame-height adjusting members and individual board-height adjusting members.
  • elastic members such as springs
  • the apparatus of the present invention provides a putting practice environment similar to the real golf game. Also, golfers can choose a practice environment depending on their ability or desires, such as putting by straight line and on slight inclination. In addition, golfers can enjoy the light metallic sound like one in a real field when the golf ball goes in the hole cup, and the golf ball can be transported to the standing location of the golfer for his convenience.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Rehabilitation Tools (AREA)
  • Road Paving Structures (AREA)
  • Floor Finish (AREA)
US10/949,265 2002-04-02 2004-09-24 Golf putting practice apparatus Abandoned US20050049070A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR2002-0018067 2002-04-02
KR10-2002-0018067A KR100469081B1 (ko) 2002-04-02 2002-04-02 골프 퍼팅연습기
PCT/KR2003/000583 WO2003082414A1 (en) 2002-04-02 2003-03-25 Golf putting mat

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2003/000583 Continuation WO2003082414A1 (en) 2002-04-02 2003-03-25 Golf putting mat

Publications (1)

Publication Number Publication Date
US20050049070A1 true US20050049070A1 (en) 2005-03-03

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ID=28673051

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/949,265 Abandoned US20050049070A1 (en) 2002-04-02 2004-09-24 Golf putting practice apparatus

Country Status (6)

Country Link
US (1) US20050049070A1 (ja)
JP (1) JP2005521492A (ja)
KR (1) KR100469081B1 (ja)
CN (1) CN100355473C (ja)
AU (1) AU2003215952A1 (ja)
WO (1) WO2003082414A1 (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7195563B1 (en) * 2004-01-02 2007-03-27 Martens David A Adjustable putting green for golf practice
US20070293337A1 (en) * 2006-06-16 2007-12-20 Payne James S Putting practice apparatus
US20100075771A1 (en) * 2006-11-20 2010-03-25 Martens David J Adjustable putting green for golf practice
US20120157221A1 (en) * 2010-12-17 2012-06-21 Rhee Jae-Woong Golf mat for golf practice
CN103613041A (zh) * 2013-11-20 2014-03-05 贵州航天南海科技有限责任公司 一种升降器

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101492766B1 (ko) * 2014-03-12 2015-02-12 박종은 골프퍼팅 연습장치
CN104971487B (zh) * 2014-04-04 2018-07-10 昆山好烤克食品机械有限公司 高尔夫练习用草地变换机

Citations (14)

* Cited by examiner, † Cited by third party
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US3595581A (en) * 1966-10-05 1971-07-27 Brunswick Corp Golf green
US3601407A (en) * 1968-12-09 1971-08-24 Processing Office Furniture In Variable playing surface game device
US4240637A (en) * 1977-11-09 1980-12-23 Alvan Cross Putting practice apparatus
US4247112A (en) * 1978-06-29 1981-01-27 Americo Del Raso Golfing putting game apparatus
US4790538A (en) * 1987-08-10 1988-12-13 Gettelfinger Irvin C Golf putting practice apparatus
US4978127A (en) * 1990-03-19 1990-12-18 Juel Jr Charles H Selectively contourable putting green
US5046741A (en) * 1990-04-16 1991-09-10 Ahn Markham D Golf mat
US5082280A (en) * 1991-06-10 1992-01-21 Austin Wang Putting practice device
US5123651A (en) * 1991-08-22 1992-06-23 Vinciguerra Joseph F Golf practice apparatus
US5855522A (en) * 1997-11-10 1999-01-05 Bevan; Paul C. Golf putting apparatus with variable surface
US6050901A (en) * 1999-05-19 2000-04-18 Davis; Grover Modular and adjustable putting surface
US6062984A (en) * 1997-12-31 2000-05-16 Ju; Ji-Yong Golf putting training apparatus
US6338682B1 (en) * 1999-09-24 2002-01-15 Puttgolf.Com, Llc Portable, adjustable-contour, putting green
US6805638B2 (en) * 2003-01-08 2004-10-19 Chen Te Chang Adjustable golf putting practice device

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GB2007510B (en) * 1977-11-09 1982-02-24 Cross R Cross T R Putting practice apparatus
JPS63130080U (ja) * 1987-02-20 1988-08-25
US4783075A (en) * 1988-03-09 1988-11-08 Command Automation, Inc. Golf practice putting device
JPH01155474U (ja) * 1988-04-19 1989-10-25
KR960005761Y1 (ko) * 1993-05-31 1996-07-15 이종호 골프 퍼팅 연습기
CN2160431Y (zh) * 1993-07-13 1994-04-06 杨穗民 台式高尔夫球场
US5692967A (en) * 1996-07-12 1997-12-02 Guyer; Donald M. Golf practice device
KR200209125Y1 (ko) * 1998-09-23 2001-02-01 문병훈 골프 퍼팅 연습기
KR200164290Y1 (ko) * 1999-07-08 2000-02-15 조상직 퍼팅연습기

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3595581A (en) * 1966-10-05 1971-07-27 Brunswick Corp Golf green
US3601407A (en) * 1968-12-09 1971-08-24 Processing Office Furniture In Variable playing surface game device
US4240637A (en) * 1977-11-09 1980-12-23 Alvan Cross Putting practice apparatus
US4247112A (en) * 1978-06-29 1981-01-27 Americo Del Raso Golfing putting game apparatus
US4790538A (en) * 1987-08-10 1988-12-13 Gettelfinger Irvin C Golf putting practice apparatus
US4978127A (en) * 1990-03-19 1990-12-18 Juel Jr Charles H Selectively contourable putting green
US5046741A (en) * 1990-04-16 1991-09-10 Ahn Markham D Golf mat
US5082280A (en) * 1991-06-10 1992-01-21 Austin Wang Putting practice device
US5123651A (en) * 1991-08-22 1992-06-23 Vinciguerra Joseph F Golf practice apparatus
US5855522A (en) * 1997-11-10 1999-01-05 Bevan; Paul C. Golf putting apparatus with variable surface
US6062984A (en) * 1997-12-31 2000-05-16 Ju; Ji-Yong Golf putting training apparatus
US6050901A (en) * 1999-05-19 2000-04-18 Davis; Grover Modular and adjustable putting surface
US6338682B1 (en) * 1999-09-24 2002-01-15 Puttgolf.Com, Llc Portable, adjustable-contour, putting green
US6805638B2 (en) * 2003-01-08 2004-10-19 Chen Te Chang Adjustable golf putting practice device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7195563B1 (en) * 2004-01-02 2007-03-27 Martens David A Adjustable putting green for golf practice
US20070293337A1 (en) * 2006-06-16 2007-12-20 Payne James S Putting practice apparatus
US20100075771A1 (en) * 2006-11-20 2010-03-25 Martens David J Adjustable putting green for golf practice
US7918743B2 (en) * 2006-11-20 2011-04-05 Martens David J Adjustable putting green for golf practice
US20120157221A1 (en) * 2010-12-17 2012-06-21 Rhee Jae-Woong Golf mat for golf practice
CN103613041A (zh) * 2013-11-20 2014-03-05 贵州航天南海科技有限责任公司 一种升降器

Also Published As

Publication number Publication date
KR20030079209A (ko) 2003-10-10
CN1642602A (zh) 2005-07-20
WO2003082414A1 (en) 2003-10-09
AU2003215952A1 (en) 2003-10-13
CN100355473C (zh) 2007-12-19
JP2005521492A (ja) 2005-07-21
KR100469081B1 (ko) 2005-02-02

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