US20090029794A1 - Golf Club Head that Reduces a Contact Resistance with the Ground - Google Patents

Golf Club Head that Reduces a Contact Resistance with the Ground Download PDF

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Publication number
US20090029794A1
US20090029794A1 US11/781,799 US78179907A US2009029794A1 US 20090029794 A1 US20090029794 A1 US 20090029794A1 US 78179907 A US78179907 A US 78179907A US 2009029794 A1 US2009029794 A1 US 2009029794A1
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US
United States
Prior art keywords
head body
golf club
accordance
club head
grounding face
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
US11/781,799
Inventor
Yung-Hsiung Chen
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.)
Well Jet International Co Ltd
Original Assignee
Well Jet International Co Ltd
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
Application filed by Well Jet International Co Ltd filed Critical Well Jet International Co Ltd
Priority to US11/781,799 priority Critical patent/US20090029794A1/en
Assigned to WELL JET INTERNATIONAL CO., LTD. reassignment WELL JET INTERNATIONAL CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHEN, YUNG-HSIUNG
Publication of US20090029794A1 publication Critical patent/US20090029794A1/en
Abandoned legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/047—Heads iron-type
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/0433—Heads with special sole configurations

Definitions

  • the present invention relates to a golf club head and, more particularly, to a golf club head that reduces a contact resistance with the ground.
  • a conventional golf club head in accordance with the prior art shown in FIGS. 4 and 5 comprises a head body 1 having a side provided with a striking face 12 and a bottom provided with a grounding face 11 .
  • the striking face 12 of the head body 1 is driven by the user to hit a golf ball 2
  • the grounding face 11 of the head body 1 contacts the ground 3 .
  • the grounding face 11 of the head body 1 has a whole surface contacting the ground 3 so that the contact area between the grounding face 11 of the head body 1 and the ground 3 is increased largely to increase the friction and resistance of the grounding face 11 of the head body 1 applied by the ground 3 and to decrease the force of the head body 1 applying on the golf ball 2 , thereby decreasing the travel distance of the golf ball 2 , and thereby decreasing the striking effect of the head body 1 .
  • a golf club head comprising a head body having a bottom provided with a grounding face.
  • the grounding face of the head body has a front portion and a rear portion located beside the front portion.
  • the rear portion of the grounding face of the head body is formed with a recessed portion.
  • the recessed portion of the grounding face of the head body is provided with at least one protruding boss.
  • the primary objective of the present invention is to provide a golf club head that efficiently reduces a contact resistance with the ground.
  • Another objective of the present invention is to provide a golf club head, wherein the contact area between the grounding face of the head body and the ground is reduced largely by provision of the recessed portion of the grounding face of the head body to reduce the friction and resistance of the grounding face of the head body and to increase the striking force of the head body so as to increase the travel distance of the golf ball and to increase the striking effect of the head body.
  • a further objective of the present invention is to provide a golf club head, wherein the protruding bosses provide a support between the grounding face of the head body and the ground so that the head body is driven to strike the golf ball exactly and stably, thereby enhancing stability of operation of the head body.
  • a further objective of the present invention is to provide a golf club head, wherein each of the protruding bosses has a specific gravity different from that of the head body to change a center of gravity of the head body so that the head body has different ball striking effects by changing the specific gravity of each of the protruding bosses, thereby facilitating the user operating the head body.
  • FIG. 1 is a perspective view of a golf club head in accordance with the preferred embodiment of the present invention.
  • FIG. 2 is a side operational view of the golf club head as shown in FIG. 1 in use.
  • FIG. 3 is a perspective view of a golf club head in accordance with another preferred embodiment of the present invention.
  • FIG. 4 is a perspective view of a conventional golf club head in accordance with the prior art.
  • FIG. 5 is a side operational view of the conventional golf club head as shown in FIG. 4 in use.
  • a golf club head in accordance with the preferred embodiment of the present invention comprises a head body 4 made of iron material and having a side provided with a striking face 45 and a bottom provided with a grounding face 41 .
  • the grounding face 41 of the head body 4 has a front portion 43 and a rear portion located beside the front portion 43 .
  • the rear portion of the grounding face 41 of the head body 4 is formed with a recessed portion 42 .
  • the grounding face 41 of the head body 4 has a mediate portion formed with a stepped shoulder 46 located between the front portion 43 and the recessed portion 42 .
  • the recessed portion 42 of the grounding face 41 of the head body 4 is provided with at least one protruding boss 44 .
  • the recessed portion 42 of the grounding face 41 of the head body 4 is provided with a plurality of protruding bosses 44 which are spaced from each other.
  • the recessed portion 42 of the grounding face 41 of the head body 4 is located at a height greater than that of the front portion 43 of the grounding face 41 of the head body 4 .
  • the recessed portion 42 and the front portion 43 of the grounding face 41 of the head body 4 have a height differential at least greater than 1 mm (millimeter).
  • the protruding bosses 44 are fixed on the recessed portion 42 of the grounding face 41 of the head body 4 by press, welding, brazing, screwing or casting.
  • the protruding bosses 44 are arrange in a line and are spaced from each other equally. Alternatively, the protruding bosses 44 are arrange in an oblique line or arc-shaped manner.
  • Each of the protruding bosses 44 has a substantially semi-spherical (oblong, elongated or irregular) cross-sectional profile and has a specific gravity different from that of the head body 4 to change a center of gravity of the head body 4 .
  • Each of the protruding bosses 44 can be processed by a surface treatment.
  • Each of the protruding bosses 44 has a bottom located at a height equal to that of a bottom of the front portion 43 of the grounding face 41 of the head body 4 .
  • the protruding bosses 44 occupy an area that is smaller than 30% (thirty percent) of that of the front portion 43 of the grounding face 41 of the head body 4 .
  • the grounding face 41 of the head body 4 contacts the ground 6 .
  • the protruding bosses 44 occupy an area that is smaller than 30% of that of the front portion 43 of the grounding face 41 of the head body 4 so that the contact area between the grounding face 41 of the head body 4 and the ground 6 is reduced largely to reduce the friction and resistance of the grounding face 41 of the head body 4 applied by the ground 6 and to increase the force of the head body 4 applying on the golf ball 5 so as to increase the travel distance of the golf ball 5 and to increase the striking effect of the head body 4 .
  • protruding bosses 44 provide a support between the grounding face 41 of the head body 4 and the ground 6 so that the head body 4 is driven to strike the golf ball 5 exactly and stably, thereby enhancing stability of operation of the head body 4 .
  • each of the protruding bosses 44 has a specific gravity different from that of the head body 4 to change a center of gravity of the head body 4 .
  • the head body 4 has a lower center of gravity, and the golf ball 5 is traveled at a greater height.
  • the head body 4 has a higher center of gravity, and the golf ball 5 is traveled at a smaller height.
  • the head body 4 has different ball striking effects by changing the specific gravity of each of the protruding bosses 44 , thereby facilitating the user operating the head body 4 .
  • each of the protruding bosses 44 can be processed by a surface treatment so that each of the protruding bosses 44 is wear-resistant and has a smaller resistance, thereby enhancing the functions of the head body 4 .
  • the head body 7 is made of wooden material, and the recessed portion 72 of the grounding face 71 of the head body 7 is provided with a plurality of protruding bosses 73 .
  • the protruding bosses 73 are arrange in arc-shaped manner.
  • Each of the protruding bosses 73 has a substantially oblong cross-sectional profile.
  • the contact area between the grounding face 41 of the head body 4 and the ground 6 is reduced largely by provision of the recessed portion 42 of the grounding face 41 of the head body 4 to reduce the friction and resistance of the grounding face 41 of the head body 4 and to increase the striking force of the head body 4 so as to increase the travel distance of the golf ball 5 and to increase the striking effect of the head body 4 .
  • the protruding bosses 44 provide a support between the grounding face 41 of the head body 4 and the ground 6 so that the head body 4 is driven to strike the golf ball 5 exactly and stably, thereby enhancing stability of operation of the head body 4 .
  • each of the protruding bosses 44 has a specific gravity different from that of the head body 4 to change a center of gravity of the head body 4 so that the head body 4 has different ball striking effects by changing the specific gravity of each of the protruding bosses 44 , thereby facilitating the user operating the head body 4 .

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Golf Clubs (AREA)

Abstract

A golf club head includes a head body having a grounding face. The grounding face has a front portion and a rear portion. The rear portion of the grounding face is formed with a recessed portion. The recessed portion is provided with at least one protruding boss. Thus, the contact area between the grounding face of the head body and the ground is reduced largely by provision of the recessed portion to reduce the friction and resistance of the grounding face of the head body and to increase the striking force of the head body so as to increase the travel distance of the golf ball and to increase the striking effect of the head body.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to a golf club head and, more particularly, to a golf club head that reduces a contact resistance with the ground.
  • 2. Description of the Related Art
  • A conventional golf club head in accordance with the prior art shown in FIGS. 4 and 5 comprises a head body 1 having a side provided with a striking face 12 and a bottom provided with a grounding face 11. In operation, when the striking face 12 of the head body 1 is driven by the user to hit a golf ball 2, the grounding face 11 of the head body 1 contacts the ground 3. However, the grounding face 11 of the head body 1 has a whole surface contacting the ground 3 so that the contact area between the grounding face 11 of the head body 1 and the ground 3 is increased largely to increase the friction and resistance of the grounding face 11 of the head body 1 applied by the ground 3 and to decrease the force of the head body 1 applying on the golf ball 2, thereby decreasing the travel distance of the golf ball 2, and thereby decreasing the striking effect of the head body 1.
    • BRIEF SUMMARY OF THE INVENTION
  • In accordance with the present invention, there is provided a golf club head, comprising a head body having a bottom provided with a grounding face. The grounding face of the head body has a front portion and a rear portion located beside the front portion. The rear portion of the grounding face of the head body is formed with a recessed portion. The recessed portion of the grounding face of the head body is provided with at least one protruding boss.
  • The primary objective of the present invention is to provide a golf club head that efficiently reduces a contact resistance with the ground.
  • Another objective of the present invention is to provide a golf club head, wherein the contact area between the grounding face of the head body and the ground is reduced largely by provision of the recessed portion of the grounding face of the head body to reduce the friction and resistance of the grounding face of the head body and to increase the striking force of the head body so as to increase the travel distance of the golf ball and to increase the striking effect of the head body.
  • A further objective of the present invention is to provide a golf club head, wherein the protruding bosses provide a support between the grounding face of the head body and the ground so that the head body is driven to strike the golf ball exactly and stably, thereby enhancing stability of operation of the head body.
  • A further objective of the present invention is to provide a golf club head, wherein each of the protruding bosses has a specific gravity different from that of the head body to change a center of gravity of the head body so that the head body has different ball striking effects by changing the specific gravity of each of the protruding bosses, thereby facilitating the user operating the head body.
  • Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
    • BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING(S)
  • FIG. 1 is a perspective view of a golf club head in accordance with the preferred embodiment of the present invention.
  • FIG. 2 is a side operational view of the golf club head as shown in FIG. 1 in use.
  • FIG. 3 is a perspective view of a golf club head in accordance with another preferred embodiment of the present invention.
  • FIG. 4 is a perspective view of a conventional golf club head in accordance with the prior art.
  • FIG. 5 is a side operational view of the conventional golf club head as shown in FIG. 4 in use.
    •  DETAILED DESCRIPTION OF THE INVENTION
  • Referring to the drawings and initially to FIGS. 1 and 2, a golf club head in accordance with the preferred embodiment of the present invention comprises a head body 4 made of iron material and having a side provided with a striking face 45 and a bottom provided with a grounding face 41. The grounding face 41 of the head body 4 has a front portion 43 and a rear portion located beside the front portion 43. The rear portion of the grounding face 41 of the head body 4 is formed with a recessed portion 42. The grounding face 41 of the head body 4 has a mediate portion formed with a stepped shoulder 46 located between the front portion 43 and the recessed portion 42.
  • The recessed portion 42 of the grounding face 41 of the head body 4 is provided with at least one protruding boss 44. Preferably, The recessed portion 42 of the grounding face 41 of the head body 4 is provided with a plurality of protruding bosses 44 which are spaced from each other. The recessed portion 42 of the grounding face 41 of the head body 4 is located at a height greater than that of the front portion 43 of the grounding face 41 of the head body 4. The recessed portion 42 and the front portion 43 of the grounding face 41 of the head body 4 have a height differential at least greater than 1 mm (millimeter).
  • The protruding bosses 44 are fixed on the recessed portion 42 of the grounding face 41 of the head body 4 by press, welding, brazing, screwing or casting. The protruding bosses 44 are arrange in a line and are spaced from each other equally. Alternatively, the protruding bosses 44 are arrange in an oblique line or arc-shaped manner. Each of the protruding bosses 44 has a substantially semi-spherical (oblong, elongated or irregular) cross-sectional profile and has a specific gravity different from that of the head body 4 to change a center of gravity of the head body 4. Each of the protruding bosses 44 can be processed by a surface treatment. Each of the protruding bosses 44 has a bottom located at a height equal to that of a bottom of the front portion 43 of the grounding face 41 of the head body 4. The protruding bosses 44 occupy an area that is smaller than 30% (thirty percent) of that of the front portion 43 of the grounding face 41 of the head body 4.
  • In operation, when the striking face 45 of the head body 4 is driven by the user to hit a golf ball 5, the grounding face 41 of the head body 4 contacts the ground 6. At this time, only the front portion 43 and the protruding bosses 44 of the grounding face 41 of the head body 4 contact the ground 6, and the protruding bosses 44 occupy an area that is smaller than 30% of that of the front portion 43 of the grounding face 41 of the head body 4 so that the contact area between the grounding face 41 of the head body 4 and the ground 6 is reduced largely to reduce the friction and resistance of the grounding face 41 of the head body 4 applied by the ground 6 and to increase the force of the head body 4 applying on the golf ball 5 so as to increase the travel distance of the golf ball 5 and to increase the striking effect of the head body 4. In addition, the protruding bosses 44 provide a support between the grounding face 41 of the head body 4 and the ground 6 so that the head body 4 is driven to strike the golf ball 5 exactly and stably, thereby enhancing stability of operation of the head body 4.
  • In addition, each of the protruding bosses 44 has a specific gravity different from that of the head body 4 to change a center of gravity of the head body 4. In such a manner, when each of the protruding bosses 44 has a specific gravity greater from that of the head body 4, the head body 4 has a lower center of gravity, and the golf ball 5 is traveled at a greater height. On the contrary, when each of the protruding bosses 44 has a specific gravity smaller from that of the head body 4, the head body 4 has a higher center of gravity, and the golf ball 5 is traveled at a smaller height. Thus, the head body 4 has different ball striking effects by changing the specific gravity of each of the protruding bosses 44, thereby facilitating the user operating the head body 4.
  • In addition, each of the protruding bosses 44 can be processed by a surface treatment so that each of the protruding bosses 44 is wear-resistant and has a smaller resistance, thereby enhancing the functions of the head body 4.
  • As shown in FIG. 3, the head body 7 is made of wooden material, and the recessed portion 72 of the grounding face 71 of the head body 7 is provided with a plurality of protruding bosses 73. The protruding bosses 73 are arrange in arc-shaped manner. Each of the protruding bosses 73 has a substantially oblong cross-sectional profile.
  • Accordingly, the contact area between the grounding face 41 of the head body 4 and the ground 6 is reduced largely by provision of the recessed portion 42 of the grounding face 41 of the head body 4 to reduce the friction and resistance of the grounding face 41 of the head body 4 and to increase the striking force of the head body 4 so as to increase the travel distance of the golf ball 5 and to increase the striking effect of the head body 4. In addition, the protruding bosses 44 provide a support between the grounding face 41 of the head body 4 and the ground 6 so that the head body 4 is driven to strike the golf ball 5 exactly and stably, thereby enhancing stability of operation of the head body 4. Further, each of the protruding bosses 44 has a specific gravity different from that of the head body 4 to change a center of gravity of the head body 4 so that the head body 4 has different ball striking effects by changing the specific gravity of each of the protruding bosses 44, thereby facilitating the user operating the head body 4.
  • Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the true scope of the invention.

Claims (16)

1. A golf club head, comprising a head body having a bottom provided with a grounding face; wherein
the grounding face of the head body has a front portion and a rear portion located beside the front portion;
the rear portion of the grounding face of the head body is formed with a recessed portion;
the recessed portion of the grounding face of the head body is provided with at least one protruding boss.
2. The golf club head in accordance with claim 1, wherein the recessed portion and the front portion of the grounding face of the head body have a height differential at least greater than 1 mm (millimeter).
3. The golf club head in accordance with claim 1, wherein the recessed portion of the grounding face of the head body is provided with a plurality of protruding bosses which are spaced from each other.
4. The golf club head in accordance with claim 1, wherein the grounding face of the head body has a mediate portion formed with a stepped shoulder located between the front portion and the recessed portion.
5. The golf club head in accordance with claim 1, wherein the recessed portion of the grounding face of the head body is located at a height greater than that of the front portion of the grounding face of the head body.
6. The golf club head in accordance with claim 3, wherein the protruding bosses are fixed on the recessed portion of the grounding face of the head body.
7. The golf club head in accordance with claim 3, wherein the protruding bosses are arrange in a line.
8. The golf club head in accordance with claim 3, wherein the protruding bosses are spaced from each other equally.
9. The golf club head in accordance with claim 3, wherein each of the protruding bosses has a substantially semi-spherical cross-sectional profile.
10. The golf club head in accordance with claim 3, wherein each of the protruding bosses has a specific gravity different from that of the head body to change a center of gravity of the head body.
11. The golf club head in accordance with claim 3, wherein each of the protruding bosses can be processed by a surface treatment.
12. The golf club head in accordance with claim 3, wherein each of the protruding bosses has a bottom located at a height equal to that of a bottom of the front portion of the grounding face of the head body.
13. The golf club head in accordance with claim 3, wherein the protruding bosses occupy an area that is smaller than 30% (thirty percent) of that of the front portion of the grounding face of the head body.
14. The golf club head in accordance with claim 3, wherein
when the striking face of the head body is driven to hit a golf ball, the grounding face of the head body contacts a ground;
only the front portion and the protruding bosses of the grounding face of the head body contact the ground.
15. The golf club head in accordance with claim 3, wherein the protruding bosses are arrange in arc-shaped manner.
16. The golf club head in accordance with claim 3, wherein each of the protruding bosses has a substantially oblong cross-sectional profile.
US11/781,799 2007-07-23 2007-07-23 Golf Club Head that Reduces a Contact Resistance with the Ground Abandoned US20090029794A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100278822A1 (en) * 2009-05-04 2010-11-04 Abbott Biotechnology, Ltd. Stable high protein concentration formulations of human anti-tnf-alpha-antibodies
CN104965504A (en) * 2015-07-27 2015-10-07 曼瑞德集团有限公司 Waterway technology with water production fresh-keeping and filter core system self-cleaning maintenance and control system

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1541126A (en) * 1923-03-24 1925-06-09 Dunn William Golf club
US2255332A (en) * 1940-12-07 1941-09-09 James M Russell Golf club
US3138386A (en) * 1960-09-13 1964-06-23 Onions John Henry Divot preventing golf club head
US3377065A (en) * 1964-07-09 1968-04-09 Thomas Paul White Sr. Hockey stick road adapter
US3680868A (en) * 1970-12-18 1972-08-01 Dayco Corp Golf putter with rotatable sole device mounted thereon
US3810631A (en) * 1972-07-24 1974-05-14 Con Sole Golf Corp Golf club head of the iron type having a concave sole
US4498673A (en) * 1984-02-21 1985-02-12 Swanson Arthur P Golf club
US4671513A (en) * 1986-07-07 1987-06-09 Swanson Arthur P Golf club irons
US4850593A (en) * 1988-09-26 1989-07-25 Nelson Alan F Reduced drag club head for a wood type golf club
US5286027A (en) * 1992-10-30 1994-02-15 Angelo Koumarianos Golf putter
US5301944A (en) * 1993-01-14 1994-04-12 Koehler Terry B Golf club head with improved sole
US5326105A (en) * 1993-05-20 1994-07-05 Fenton Golf, Inc. Sea plane sole for a golf club
US5460377A (en) * 1992-08-05 1995-10-24 Callaway Golf Company Golf putter with face plate insert
US5474297A (en) * 1993-04-19 1995-12-12 Levin; John M. Golf clubs for hitting low trajectory shots
US7393286B1 (en) * 2005-06-09 2008-07-01 Robert Milton Renegar Corrugated sole for a utility wedge golf club

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1541126A (en) * 1923-03-24 1925-06-09 Dunn William Golf club
US2255332A (en) * 1940-12-07 1941-09-09 James M Russell Golf club
US3138386A (en) * 1960-09-13 1964-06-23 Onions John Henry Divot preventing golf club head
US3377065A (en) * 1964-07-09 1968-04-09 Thomas Paul White Sr. Hockey stick road adapter
US3680868A (en) * 1970-12-18 1972-08-01 Dayco Corp Golf putter with rotatable sole device mounted thereon
US3810631A (en) * 1972-07-24 1974-05-14 Con Sole Golf Corp Golf club head of the iron type having a concave sole
US4498673A (en) * 1984-02-21 1985-02-12 Swanson Arthur P Golf club
US4671513A (en) * 1986-07-07 1987-06-09 Swanson Arthur P Golf club irons
US4850593A (en) * 1988-09-26 1989-07-25 Nelson Alan F Reduced drag club head for a wood type golf club
US4850593B1 (en) * 1988-09-26 1996-12-10 Alan F Nelson Reduced drag club head for a wood type golf club
US5460377A (en) * 1992-08-05 1995-10-24 Callaway Golf Company Golf putter with face plate insert
US5286027A (en) * 1992-10-30 1994-02-15 Angelo Koumarianos Golf putter
US5301944A (en) * 1993-01-14 1994-04-12 Koehler Terry B Golf club head with improved sole
US5474297A (en) * 1993-04-19 1995-12-12 Levin; John M. Golf clubs for hitting low trajectory shots
US5326105A (en) * 1993-05-20 1994-07-05 Fenton Golf, Inc. Sea plane sole for a golf club
US7393286B1 (en) * 2005-06-09 2008-07-01 Robert Milton Renegar Corrugated sole for a utility wedge golf club

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100278822A1 (en) * 2009-05-04 2010-11-04 Abbott Biotechnology, Ltd. Stable high protein concentration formulations of human anti-tnf-alpha-antibodies
CN104965504A (en) * 2015-07-27 2015-10-07 曼瑞德集团有限公司 Waterway technology with water production fresh-keeping and filter core system self-cleaning maintenance and control system

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Legal Events

Date Code Title Description
AS Assignment

Owner name: WELL JET INTERNATIONAL CO., LTD., SAMOA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CHEN, YUNG-HSIUNG;REEL/FRAME:019601/0215

Effective date: 20070718

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION