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(12) United States Patent ao) Patent No.: us 6,402,644 B2
Stanford et al. (45) Date of Patent: *Jun. 11,2002
(54) CONSTANT FORCE ADJUSTABLE BASKETBALL GOAL ASSEMBLY
(75) Inventors: Carl R. Stanford, Clinton; Charles Monsen, Brigham City, both ol UT (US)
(73) Assignee: Lifetime Products, Inc., Clearfield, UT (US)
( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days.
This patent is subject to a terminal disclaimer.
(21) Appl. No.: 09/840,534
(22) Filed: Apr. 23, 2001
Related U.S. Application Data
(63) Continuation-in-part of application No. 09/694,620, filed on Oct. 23, 2000, which is a continuation-in-part of application No. 09/249,278, filed on Feb. 11, 1999, now Pat. No. 6,135,901, which is a continuation-in-part of application No. 09/018,231, filed on Feb. 3, 1998, now Pat. No. 6,077,177, which is a continuation-in-part of application No. 08/986, 382, filed on Dec. 8, 1997, now Pat. No. 5,879,247, which is a continuation of application No. 08/799,979, filed on Feb. 12, 1997, now Pat. No. 5,695,417.
(51) Int. CI.7 A63B 63/08
(52) U.S. CI 473/484; 473/483; 473/482;
(58) Field of Search 473/481, 482,
473/483, 484; 248/283.1, 404, 280.11
(56) References Cited
U.S. PATENT DOCUMENTS
276,637 A 5/1883 Slater 1,924,811 A 8/1933 Schulz 2,932,511 A 4/1960 Bemis
A novel constant force adjustment assembly for a basketball goal assembly is disclosed. The basketball goal assembly includes a deformable goal support structure attached at a first end to a support pole. A basketball goal is preferably attached at a second end of the goal support structure. An extension arm is operably connected between the goal support structure and a handle member operable by a user to adjust the height of the basketball goal. The constant force adjustment assembly includes one or more resilient members attached to the deformable goal support structure to counterbalance the weight of the basketball goal. The resilient members maybe attached to a cam fixture rigidly mounted, pivotally attached, or otherwise connected to the deformable goal support structure. The cam fixture varies the moment arm of the restorative force of each resilient member so that as the restorative force of the resilient member increases, the length of the moment arm of that force decreases. In one presently preferred embodiment, two resilient members are provided: a gas spring, and a spring member containing a coil spring. In one alternative embodiment of the invention, the cam fixture is pivotally attached to the deformable goal support structure, and operates as part of a linkage to control the orientation of the cam fixture.
(List continued on next page.)
36 Claims, 4 Drawing Sheets
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Alabama, p. 69 (date unknown).
Escalade Sports, "Serious Play", 1997 Products Catalog
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Huffy Sports, "Our All-Star Lineup," Waukesha, Wisconsin, p. 21 (date unknown).
Huffy Sports, Equipment Assembly Instruction Sheet,
Waukesha, Wisconsin (date unknown).
Porter, "All-in-One "Quick Adjust" Kits," Informational
Brochure (date unknown).
Rolbak, "The Original Basket Ball Protecto Net" Fact Sheet (date unknown).
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Kit," Informational Brochure, Franklin Park, Illinois (date
* cited by examiner