US3105682A - Self-locking collar and cooperating standard - Google Patents

Self-locking collar and cooperating standard Download PDF

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US3105682A
US3105682A US761809A US76180958A US3105682A US 3105682 A US3105682 A US 3105682A US 761809 A US761809 A US 761809A US 76180958 A US76180958 A US 76180958A US 3105682 A US3105682 A US 3105682A
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standard
collar
lever
plates
locking lever
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US761809A
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Donald W Ahrens
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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
    • A63B61/00—Tennis nets or accessories for tennis or like games, e.g. volley-ball
    • A63B61/02—Posts; Revolvably-mounted posts ; Straining or adjusting devices on the posts, e.g. coin- or time operated
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F53/00—Clothes-lines; Supports therefor 
    • D06F53/04—Supports, e.g. poles, props for clothes-lines
    • 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
    • A63B5/00—Apparatus for jumping
    • A63B5/02—High-jumping posts
    • 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
    • A63B69/0073—Means for releasably holding a ball in position; Balls constrained to move around a fixed point, e.g. by tethering
    • A63B69/0079—Balls tethered to a line or cord
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7062—Clamped members
    • Y10T403/7064—Clamped members by wedge or cam
    • Y10T403/7066—Clamped members by wedge or cam having actuator
    • Y10T403/7071—Lever actuator

Definitions

  • This invention is a variably positionable, self-locking collar; the invention also includes a cooperating standard.
  • the combination of collar and standard is capable of various uses, where it is desired to position a vertically slidable collar on a standard at various heights. Possible uses are standards for various athletic contests, such as the high jump and pole vault; for use in supporting tennis and badminton nets; for tether ball; for clothes lines; for a drill press, etc.
  • the standard used is preferably in detachable sections, which can be coupled together to make a standard of the desired height.
  • the several sections are of uniform outside diameter, so that the collar is readily slidable vertically thereon.
  • the principal object 'of the invention is to provide a collar which can be manually released from a particular place on the standard, moved upwardly or downwardly, to a new level, and released, whereupon the collar locks itself automatically at that level until it is desired to move it to another level.
  • the collar comprises a body portion which encircles the standard, the body portion being extended into two parallel spaced apart plates.
  • a lock lever one end of which engages frictionally with the standard; a spring or other force, when applied to one end of the lever, pulls the other end of the lever into engagement with the standard and holds it there.
  • this lever is readily releasable by hand, to disengage the lever, to enable the collar to be moved to a new position, in which position, it locks itself when released.
  • the lock lever extends diagonally upwardly, in which case, the collar is locked against downward movement, but may be readily moved upwardly; in another form, two lock levers are used, extending diagonally upwardly and downwardly, for locking the collar against upward and downward movement; in another form, one or two lock levers, extending diagonally both with respect to the vertical and transverse axes of the standard, so as to additionally lock the collar against rotary movement on the standard.
  • FIG. 1 is a side View of collars and standards of the present invention, in use as supporting -a net.
  • FIG. 2 shows the standard used as a tether ball post.
  • FIG. 3 shows the standard and collars for supporting the horizontal bar for the pole vault or high jump.
  • PEG. 4 is a vertical cross-section of a joint for the standard.
  • FIG. 5 is an enlarged side view of the simpler form of collar of this invention.
  • FIG. 6 is a plan view of FIG. *5.
  • FIG. 7 and FIG. 8 are side views of two modifications.
  • FIG. 9 and FIG. 10 are perspective and top plan Views of another modification.
  • FIGS. 1-1, 12 and 13 are side, edge and plan views of another modification.
  • the invention comprises a standard 2, preferably circular in cross-section; although, it could, for example, be square or hexagonal if desired; the standard is composed of a plurality of sections 4 all of the same outside diameter.
  • One of the sections ice 2 is provided with an exteriorly threaded collar 6 which engages with corresponding interior threads 7 on an adjacent section, as shown in FIG. 4.
  • These standards are preferably provided with a ground anchorage comprising radiating arms 8, conveniently four in number, provided with prongs 10 for ground anchorage.
  • This collar comprises a semi-cylindrical portion 14 forming the body portion of the collar, from which extend, preferably integral therewith, a pair of vertical parallel plates 16.
  • a locking lever 20 mounted on a pivot pin 13, passing through suitable apertures in the upper portions of these plates, is a locking lever 20 extending angularly upwardly, as shown in FIG. 5.
  • a spring 22 has its lower end secured to a pin 24 carried by the plates 16, while its upper end is secured to a ring 26 at the upper end of lever 20.
  • the lever 20 is positioned so that its lower end bears against the standard 2, this end preferably being tipped with a tip 23 of rubber, synthetic resin or the like, so that it frictionally contacts the standard under the influence of spring 22. Additional coiled springs 28 coiled around the pivot 18 may be provided for turning the lever 20 clockwise, as shown in FIG. 5.
  • lever 20 is provided with a ring 30 and the body portion 12 of the collar may be provided with a horizontal extension 3-2 on the side opposite the plate 16, as shown in FIG. 5.
  • FIG. 1 shows two collars are positioned at the desired level on the standards to support a badminton net 34.
  • FIG. 2 shows the standard used for a tether ball 3, 13- being preferably a swiveled collar.
  • lever 20 In order to position the collar 12 at any desired level, the lever 20 is manually moved counter-clockwise to disengage it from the standard and the collar moved upwardly or downwardly as desired, and then lever 20 is released, whereupon spring 22 and springs 28 cause lever 20' to frictionally lock against the standard 2 to hold the collar at that level.
  • the cable or line is secured to loop 30 and the pull of the cable 31 helps to hold the lever in looking position.
  • the locking levers 20' are provided in duplicate where for any reason the load to be supported is rather heavy and where it is necessary to avoid any slippage whatever of the collar.
  • the upper locking lever 20 and cooperating spring 22. are provided as before.
  • a second downwardly and outwardly extending locking lever 36 is provided, having a cooperating spring 38, this lever being otherwise similar to lever 20* except that it extends diagonally downwardly instead of diagonally upwardly.
  • This arrangement gives a positive lock against movement of the collar in either direction. With the lever shown in FIG. 5, the collar could be pushed upwardly manually without releasing lever 20*.
  • this modification shows the body portion 4% of the collar provided with laterally extending plates 42. Between each pair of plates 42 is a locking lever 44 pivoted on pins 46. One of the levers 44, as shown in FIG. 9, extends laterally in one direction While the lower one extends laterally in the other direction, so that their respective operating springs 48 cause the inner ends of the lever to press against the standard 2 to lock the collar to the standard against movement in either clockwise or counter-clockwise direction, as well as against up and down movement.
  • collar 50 is provided with laterally extending plates 52.
  • the upper locking lever 54 is pivoted between the plates on the pivot 56 and is provided with an actuating spring 58.
  • the lower locking lever 60 is pivoted on the pin 62 and is provided with an actuating spring 64.
  • These looking levers extend diagonally upwardly and diagonally downwardly, and they also extend diagonally laterally so that they are diagonally disposed with respect to a plane through the longitudinally axis of the standard 2 and also diagonally disposed with respect to a plane perpendicular to the longitudinal axis of the standard 2. Such an arrangement locks the collar 50 against upward and downward movement, as well as against any clockwise or counter-clockwise movement.
  • a self-locking collar comprising a body portion adapted to partially encircle a standard, two substantially parallel, outwardly extending plates carried by said body portion, a pair of lock levers, pivotally mounted between said plates, each positioned with its inner end adapted to bear against and lock against the standard, spring means cooperating with each of said lock levers tor urging each of them into locking position, one of said levers extending diagonally upwardly and outwardly from said stand ard, while the other extends diagonally downwardly and outwardly from said standard, whereby the levers and their cooperating springs hold the collar against either up or down movement.
  • a standard a lock collar having abody port-ion adapted to partially surround the standard, two substantially parallel outwardly extending plates extending laterally from said body portion, a lock lever pivoted between said plates, on an axis inclined at an angle to the axis of the standard, and positioned to have its inner end to bear against said standard, spring means cooperating with said lever for causing its inner end to press against the standard, said lever extending diagonally with respect to both the horizontal and vertical planes passing through the longitudinal and transverse axes of said body portion.
  • a standard a lock collar having a body portion adapted to partially surround said standard, two substantially parallel outwardly extending plates extending l-ater ally from said body portion, two lock levers pivoted between said plates and having their inner ends adapted to bear frictionally against said standard, spring means cooperating with said levers :for causing their inner ends to bear against the standard, one of said levers extending diagonally upwardly, the other of said levers extending diagonally downwardly, each of said levers-also extendin diagonally with respect to a vertical plane passing through the longitudinal axis of said standard.
  • a variable positionable collar substantially encircling said standard, a horizontal extension carried by said collar at one side for supporting a horizontal bar for use in the high jump or pole vault, said collar, on the side opposite said extension, being provided with a pair of spaced parallel plates, a locking lever pivoted between said plates on a horizontal axis and extending diagonally upwardly, a ring carried by the outer end of said lock lever for supporting a badminton net, and a spring cooperating with said parallel plates and the upper end of said locking lever, for urging the. inner end of said locking lever into frictional engagement with said standard.

Description

Oct. 1, 1963 D. w. AHRENS I 3,
SELF-LOCKING COLLAR AND COOPERATING STANDARD Filed Sept. 18, 1958 5 Sheets-Sheet 2 U INVENTOR DONALD n. AHRE/VS' BYE/M, M
ATTORNEYS D. w. 'AHRENS 3,105,682
SELF-LOCKING COLLAR AND COOPERATING STANDARD Oct. 1, 1963 Filed Sept. 18, 1958 5 Sheets-Sheet 3 FIG.
INVENTOR DONALD W. AHRE/VS BY wwwiapw ATTORNEYS United States Patent 3,105,682 SELF-LOCKDJG COLLAR AND CODPERATING STANDARD Donald W. Ahrens, 1623 3rd Ave, Grinnell, lowa Filed Sept. 18, 1958, Ser. No. 761,809 Claims. (Cl. 27259) This invention is a variably positionable, self-locking collar; the invention also includes a cooperating standard. The combination of collar and standard is capable of various uses, where it is desired to position a vertically slidable collar on a standard at various heights. Possible uses are standards for various athletic contests, such as the high jump and pole vault; for use in supporting tennis and badminton nets; for tether ball; for clothes lines; for a drill press, etc.
The standard used is preferably in detachable sections, which can be coupled together to make a standard of the desired height. The several sections are of uniform outside diameter, so that the collar is readily slidable vertically thereon.
The principal object 'of the invention is to provide a collar which can be manually released from a particular place on the standard, moved upwardly or downwardly, to a new level, and released, whereupon the collar locks itself automatically at that level until it is desired to move it to another level.
More specifically, the collar comprises a body portion which encircles the standard, the body portion being extended into two parallel spaced apart plates.
Between these plates is pivoted a lock lever, one end of which engages frictionally with the standard; a spring or other force, when applied to one end of the lever, pulls the other end of the lever into engagement with the standard and holds it there. However, this lever is readily releasable by hand, to disengage the lever, to enable the collar to be moved to a new position, in which position, it locks itself when released.
In a simpler form, the lock lever extends diagonally upwardly, in which case, the collar is locked against downward movement, but may be readily moved upwardly; in another form, two lock levers are used, extending diagonally upwardly and downwardly, for locking the collar against upward and downward movement; in another form, one or two lock levers, extending diagonally both with respect to the vertical and transverse axes of the standard, so as to additionally lock the collar against rotary movement on the standard.
The invention will be further described in connection with the accompanying drawings, in which:
FIG. 1 is a side View of collars and standards of the present invention, in use as supporting -a net.
'FIG. 2 shows the standard used as a tether ball post.
FIG. 3 shows the standard and collars for supporting the horizontal bar for the pole vault or high jump.
PEG. 4 is a vertical cross-section of a joint for the standard.
FIG. 5 is an enlarged side view of the simpler form of collar of this invention.
FIG. 6 is a plan view of FIG. *5.
FIG. 7 and FIG. 8 are side views of two modifications.
FIG. 9 and FIG. 10 are perspective and top plan Views of another modification.
FIGS. 1-1, 12 and 13 are side, edge and plan views of another modification.
Referring now to these drawings, in which similar reference characters indicate similar parts, the invention comprises a standard 2, preferably circular in cross-section; although, it could, for example, be square or hexagonal if desired; the standard is composed of a plurality of sections 4 all of the same outside diameter. One of the sections ice 2 is provided with an exteriorly threaded collar 6 which engages with corresponding interior threads 7 on an adjacent section, as shown in FIG. 4. These standards are preferably provided with a ground anchorage comprising radiating arms 8, conveniently four in number, provided with prongs 10 for ground anchorage.
An important feature of the invention is the self-locking collar shown at 12 in FIGS. 5 and 6. This collar comprises a semi-cylindrical portion 14 forming the body portion of the collar, from which extend, preferably integral therewith, a pair of vertical parallel plates 16. Mounted on a pivot pin 13, passing through suitable apertures in the upper portions of these plates, is a locking lever 20 extending angularly upwardly, as shown in FIG. 5. A spring 22 has its lower end secured to a pin 24 carried by the plates 16, while its upper end is secured to a ring 26 at the upper end of lever 20. The lever 20 is positioned so that its lower end bears against the standard 2, this end preferably being tipped with a tip 23 of rubber, synthetic resin or the like, so that it frictionally contacts the standard under the influence of spring 22. Additional coiled springs 28 coiled around the pivot 18 may be provided for turning the lever 20 clockwise, as shown in FIG. 5.
The upper end of lever 20 is provided with a ring 30 and the body portion 12 of the collar may be provided with a horizontal extension 3-2 on the side opposite the plate 16, as shown in FIG. 5.
One use of the invention is shown in FIG. 1 where two collars are positioned at the desired level on the standards to support a badminton net 34. FIG. 2 shows the standard used for a tether ball 3, 13- being preferably a swiveled collar.
In order to position the collar 12 at any desired level, the lever 20 is manually moved counter-clockwise to disengage it from the standard and the collar moved upwardly or downwardly as desired, and then lever 20 is released, whereupon spring 22 and springs 28 cause lever 20' to frictionally lock against the standard 2 to hold the collar at that level.
Where the collar is used to support a net, clothes line or the like, the cable or line is secured to loop 30 and the pull of the cable 31 helps to hold the lever in looking position.
Where the collar is used to support a horizontal bar 35 for the pole vault or high jump, such bar rests on extensions 32, as shown in FIG. 3.
In FIG. 7, the locking levers 20' are provided in duplicate where for any reason the load to be supported is rather heavy and where it is necessary to avoid any slippage whatever of the collar.
Referring to the modification in FIG. 8, the upper locking lever 20 and cooperating spring 22. are provided as before. A second downwardly and outwardly extending locking lever 36 is provided, having a cooperating spring 38, this lever being otherwise similar to lever 20* except that it extends diagonally downwardly instead of diagonally upwardly. This arrangement gives a positive lock against movement of the collar in either direction. With the lever shown in FIG. 5, the collar could be pushed upwardly manually without releasing lever 20*.
Referring now to FIGS. 9 and 10, this modification shows the body portion 4% of the collar provided with laterally extending plates 42. Between each pair of plates 42 is a locking lever 44 pivoted on pins 46. One of the levers 44, as shown in FIG. 9, extends laterally in one direction While the lower one extends laterally in the other direction, so that their respective operating springs 48 cause the inner ends of the lever to press against the standard 2 to lock the collar to the standard against movement in either clockwise or counter-clockwise direction, as well as against up and down movement.
In the modifications shown in FIGS. 11, 12 and 13, the
collar 50 is provided with laterally extending plates 52. The upper locking lever 54 is pivoted between the plates on the pivot 56 and is provided with an actuating spring 58. The lower locking lever 60 is pivoted on the pin 62 and is provided with an actuating spring 64. These looking levers extend diagonally upwardly and diagonally downwardly, and they also extend diagonally laterally so that they are diagonally disposed with respect to a plane through the longitudinally axis of the standard 2 and also diagonally disposed with respect to a plane perpendicular to the longitudinal axis of the standard 2. Such an arrangement locks the collar 50 against upward and downward movement, as well as against any clockwise or counter-clockwise movement.
While the invention has been described in detail, it should be understood that the invention is not limited to the precise details illustrated, but may be carried out in other ways.
I claim as my invention:
1. A self-locking collar, comprising a body portion adapted to partially encircle a standard, two substantially parallel, outwardly extending plates carried by said body portion, a pair of lock levers, pivotally mounted between said plates, each positioned with its inner end adapted to bear against and lock against the standard, spring means cooperating with each of said lock levers tor urging each of them into locking position, one of said levers extending diagonally upwardly and outwardly from said stand ard, while the other extends diagonally downwardly and outwardly from said standard, whereby the levers and their cooperating springs hold the collar against either up or down movement.
2. The combination of claim 1, wherein the inner ends of said levers are tipped with resinous material for binding frictionally against the standard.
3. A standard, a lock collar having abody port-ion adapted to partially surround the standard, two substantially parallel outwardly extending plates extending laterally from said body portion, a lock lever pivoted between said plates, on an axis inclined at an angle to the axis of the standard, and positioned to have its inner end to bear against said standard, spring means cooperating with said lever for causing its inner end to press against the standard, said lever extending diagonally with respect to both the horizontal and vertical planes passing through the longitudinal and transverse axes of said body portion.
4. A standard, a lock collar having a body portion adapted to partially surround said standard, two substantially parallel outwardly extending plates extending l-ater ally from said body portion, two lock levers pivoted between said plates and having their inner ends adapted to bear frictionally against said standard, spring means cooperating with said levers :for causing their inner ends to bear against the standard, one of said levers extending diagonally upwardly, the other of said levers extending diagonally downwardly, each of said levers-also extendin diagonally with respect to a vertical plane passing through the longitudinal axis of said standard.
5. In combination with a vertical standard, a variable positionable collar substantially encircling said standard, a horizontal extension carried by said collar at one side for supporting a horizontal bar for use in the high jump or pole vault, said collar, on the side opposite said extension, being provided with a pair of spaced parallel plates, a locking lever pivoted between said plates on a horizontal axis and extending diagonally upwardly, a ring carried by the outer end of said lock lever for supporting a badminton net, and a spring cooperating with said parallel plates and the upper end of said locking lever, for urging the. inner end of said locking lever into frictional engagement with said standard.
References Cited in the file of this patent UNITED STATES PATENTS 218,404 Shimoneck Aug. 12, 1879 1,013,829 Thornley Jan. 2, 1912 1,146,843 Brown July 20, 1915 2,398,413 De Laurentis et al. Apr. 16, 1946 2,452,729 Carlson Nov. 2, 1948 2,545,784 Kenner Mar. 20, 1951 FOREIGN PATENTS 538,288 France Mar. 16, 1922

Claims (1)

  1. 5. IN COMBINATION WITH A VERTICAL STANDARD, A VARIABLE POSITIONABLE COLLAR SUBSTANTIALLY ENCIRCLING SAID STANDARD, A HORIZONTAL EXTENSION CARRIED BY SAID COLLAR AT ONE SIDE FOR SUPPORTING A HORIZONTAL BAR FOR USE IN THE HIGH JUMP OR POLE VAULT, SAID COLLAR, ON THE SIDE OPPOSITE SAID EXTENSION, BEING PROVIDED WITH A PAIR OF SPACED PARALLEL PLATES, A LOCKING LEVER PIVOTED BETWEEN SAID PLANES ON A HORIZONTAL AXIS AND EXTENDING DIAGONALLY UPWARDLY, A RING CARRIED BY THE OUTER END OF SAID LOCK LEVER FOR SUPPORTING A BADMINTON NET, AND A SPRING COOPERATING WITH SAID PARALLEL PLATES AND THE UPPER END OF SAID LOCKING LEVER, FOR URGING THE INNER END OF SAID LOCKING LEVER INTO FRICTIONAL ENGAGEMENT WITH SAID STANDARD.
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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3393888A (en) * 1967-01-23 1968-07-23 Russell W. Henningsgard Pole-mounted bracket
US4009780A (en) * 1976-05-24 1977-03-01 Frye Norman V Volleyball or like kit
US4057248A (en) * 1976-01-05 1977-11-08 Stoecker William J Baseball practice device
US4732382A (en) * 1985-01-24 1988-03-22 Harvey Ratner Tennis training device
US4786053A (en) * 1987-02-17 1988-11-22 Mckenzie Brothers Products, Inc. Portable free-standing apparatus for multiple athletic ball games
US4852876A (en) * 1988-09-01 1989-08-01 Scioscia David M Tennis net height extender
US4993709A (en) * 1987-10-05 1991-02-19 Pan Pacific Corporation Ball game apparatus
US5014983A (en) * 1989-03-29 1991-05-14 Raymond Saunders Portable outdoor multi game apparatus
US5106101A (en) * 1990-11-21 1992-04-21 Mckay David C Games-net support
US5334119A (en) * 1990-02-08 1994-08-02 Eloranta Erkki M Hurdle boom holder
US5674139A (en) * 1996-08-20 1997-10-07 Brooks; John D. Volleyball game
FR2750342A1 (en) * 1996-06-26 1998-01-02 G E S Sa System to adjust height of sports net
US6089995A (en) * 1998-10-09 2000-07-18 Porter Athletic Equipment Company Split collar for sport nets
US6135921A (en) * 1998-12-01 2000-10-24 Holland; Dennis Long jump training apparatus
US20060116226A1 (en) * 2004-08-20 2006-06-01 Padilla Ronald G Adjustable net support system
US20070087899A1 (en) * 2005-10-04 2007-04-19 Thibodeaux Gene Sr Pole vaulting device and method
US20090017946A1 (en) * 2007-07-13 2009-01-15 Sportcraft, Ltd. Quick set up net assembly for game play
US20120277037A1 (en) * 2011-04-30 2012-11-01 Eastpoint Sports Ltd., Llc Sports Net Assembly
FR2995793A1 (en) * 2012-09-27 2014-03-28 Miceli Design Base plate for fixation on ground to carry out arrangement of volley ball post, has fixing unit assembling/disassembling authorizing unit for authorizing disassembling of fixing unit such that post is completely disassembled from frame
US20150107529A1 (en) * 2013-05-03 2015-04-23 Lawrence Lee Howard Rotating Dual Equestrian Jump Cup
US9656184B1 (en) 2016-03-23 2017-05-23 Cristobal Castro Sliding jump cup system, method and apparatus
US11198048B2 (en) * 2019-03-31 2021-12-14 Fritz Johnson Ball return assembly

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US218404A (en) * 1879-08-12 Improvement in gymnastic apparatus
US1013829A (en) * 1911-04-17 1912-01-02 Narragansett Machine Company Vaulting-bar.
US1146843A (en) * 1913-12-06 1915-07-20 Everett A Brown Exercising apparatus.
FR538288A (en) * 1922-06-07
US2398413A (en) * 1945-04-28 1946-04-16 Laurentis Peter F De Adjustable support
US2452729A (en) * 1944-10-28 1948-11-02 Burrell Technical Supply Compa Mercury leveling clamp
US2545784A (en) * 1944-12-29 1951-03-20 Howey J Kenner Alignment device support

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US218404A (en) * 1879-08-12 Improvement in gymnastic apparatus
FR538288A (en) * 1922-06-07
US1013829A (en) * 1911-04-17 1912-01-02 Narragansett Machine Company Vaulting-bar.
US1146843A (en) * 1913-12-06 1915-07-20 Everett A Brown Exercising apparatus.
US2452729A (en) * 1944-10-28 1948-11-02 Burrell Technical Supply Compa Mercury leveling clamp
US2545784A (en) * 1944-12-29 1951-03-20 Howey J Kenner Alignment device support
US2398413A (en) * 1945-04-28 1946-04-16 Laurentis Peter F De Adjustable support

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3393888A (en) * 1967-01-23 1968-07-23 Russell W. Henningsgard Pole-mounted bracket
US4057248A (en) * 1976-01-05 1977-11-08 Stoecker William J Baseball practice device
US4009780A (en) * 1976-05-24 1977-03-01 Frye Norman V Volleyball or like kit
US4732382A (en) * 1985-01-24 1988-03-22 Harvey Ratner Tennis training device
US4786053A (en) * 1987-02-17 1988-11-22 Mckenzie Brothers Products, Inc. Portable free-standing apparatus for multiple athletic ball games
US4993709A (en) * 1987-10-05 1991-02-19 Pan Pacific Corporation Ball game apparatus
US4852876A (en) * 1988-09-01 1989-08-01 Scioscia David M Tennis net height extender
US5014983A (en) * 1989-03-29 1991-05-14 Raymond Saunders Portable outdoor multi game apparatus
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US20090163324A1 (en) * 2005-10-04 2009-06-25 Thibodeaux Sr Gene Pole vaulting device and method
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US8465383B2 (en) * 2011-04-30 2013-06-18 Eastpoint Sports Ltd., Llc Sports net assembly
FR2995793A1 (en) * 2012-09-27 2014-03-28 Miceli Design Base plate for fixation on ground to carry out arrangement of volley ball post, has fixing unit assembling/disassembling authorizing unit for authorizing disassembling of fixing unit such that post is completely disassembled from frame
US20150107529A1 (en) * 2013-05-03 2015-04-23 Lawrence Lee Howard Rotating Dual Equestrian Jump Cup
US9433873B2 (en) * 2013-05-03 2016-09-06 Lawrence Lee Howard Rotating dual equestrian jump cup
US9656184B1 (en) 2016-03-23 2017-05-23 Cristobal Castro Sliding jump cup system, method and apparatus
US11198048B2 (en) * 2019-03-31 2021-12-14 Fritz Johnson Ball return assembly

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