Did You Know...
...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Number | Title | Issue Date |
| 7468020 | Foldable trampoline A foldable trampoline includes a bed unit, and a foldable frame unit operable to move between unfolded and folded states, and including first and second frame sections that cooperate to define a bedding space, that are coupled movably to each other and to the bed un... | 12/23/2008 |
| 7422547 | Trampoline having substantially similar mat deflection under varying loads A novel trampoline at least includes: a trampoline frame; a trampoline mat operatively surrounded by the trampoline frame; and a plurality of trampoline spring members operatively coupled between the trampoline frame and the trampoline mat. Each trampoline spring me... | 09/09/2008 |
| 7331904 | Trampoline having substantially similar mat deflection under varying loads A novel trampoline at least includes: a trampoline frame; a trampoline mat operatively surrounded by the trampoline frame; and a plurality of trampoline spring members operatively coupled between the trampoline frame and the trampoline mat. Each trampoline spring me... | 02/19/2008 |
| 7331903 | Trampoline having a curved frame with better jumping characteristics A trampoline (10) includes a base frame (14) having a substantially non-rectangular perimeter region (38), a bed suspension assembly (16) and a bed (12). The bed (12) is coupled to the base frame (14) with the bed sus... | 02/19/2008 |
| 7244216 | Method and system for preventing pole vault fall injuries A method for preventing serious injuries to a person participating in a physical activity, such as pole-vaulting, which occurs at least partially over a hard surface. The method includes: detecting predetermined criteria indicative of a condition which requires depl... | 07/17/2007 |
| 7220218 | Modified trampoline holder structure A modified trampoline holder structure comprises a plurality of transverse tubes, six connection sleeves, and three supporting tubes. The transverse tubes are connected together into a ring shape. Each connection sleeve firmly clamps the joint of two adjacent transv... | 05/22/2007 |
| 7182713 | Quick-coupling post for trampoline safety fence A quick-coupling post for trampoline safety fence is formed from a plurality of sequentially connectable hollow sections and an elastic connecting element mounted in each section. Each of the hollow sections has an upper portion adapted to fitly extend into a lower ... | 02/27/2007 |
| 7150699 | Water trampoline A water trampoline includes a tumbling unit, a plurality of floating members, and a rope assembly. The tumbling unit includes a bed frame, a tumbling mat, and a plurality of elastic members connecting the tumbling mat to the bed frame. The floating members are conne... | 12/19/2006 |
| 7104901 | Hockey training system A hockey training system for providing a versatile hockey training apparatus capable of providing various hockey training techniques. The hockey training system includes a base having an outer perimeter, a pair of platforms positionable upon the base, a pair of cove... | 09/12/2006 |
| 7094181 | Transportable trampoline system A portable trampoline exercise system, including a foldable trampoline with long-lasting rigidity in the frame and a specifically adapted carrying case for transporting the folded trampoline. The trampoline is made foldable by using hinges to connect sections of the... | 08/22/2006 |
| 7018322 | Quarter-foldable rebounder with improved features A quarter-foldable rebounder includes a frame of circular configuration, a circular mat, springs and legs. The frame is formed by four one-piece molded quarter-frame arcuate segments having integral pairs of half-fold and quarter-fold hinges and a rod embedded in ea... | 03/28/2006 |
| 7018267 | Transportable play assembly A transportable play design assembly with an open operative position, an alternative closed position and which may be folded to enclose play items therebetween when play time is concluded. The open operative position is utilized as a play surface. The alternative cl... | 03/28/2006 |
| 6939270 | Foldable trampoline A foldable trampoline includes a frame consisting of multiple frame sections, a jumping bed, and a plurality of legs connected to each joint of two adjacent frame sections. At least two knuckle mechanisms are provided at two opposite joints of the frame sections. Ea... | 09/06/2005 |
| 6923744 | Trampoline system A trampoline system has a frame with horizontal and supporting members raising the frame above the ground. The trampoline bed and springs have a pad body attached to the trampoline frame by straps. Each strap pair has an upper and lower strap attached to the pad bod... | 08/02/2005 |
| 6663538 | Safety trampoline A safety trampoline is described herein. The trampoline comprises a generally circular inner canvas, a plurality of inner plane springs distributed about the perimeter of the inner canvas. The trampoline also comprises a generally circular outer canvas ha... | 12/16/2003 |
| 6652419 | Integrated exercise and conditioning system for the human body An integrated exercise machine system that is utilized to facilitate overall physical fitness which includes the detoxification of the body along with the aerobic conditioning of the cardiovascular system. The system was primarily designed to facilitate a... | 11/25/2003 |
| 6648799 | Foldable trampoline An exercise device, such as a trampoline, that is foldable with long-lasting rigidity in the framework. The trampoline is made foldable by using hinges to connect sections of the frame of the trampoline. The hinges are configured to provide lateral flexib... | 11/18/2003 |
| 6607468 | Trampoline enclosure system A trampoline system includes a frame comprising a border rail encircling an opening and a plurality of support legs projecting from the frame. A trampoline bed is disposed within the opening and is secured to the border rail by a plurality of springs. The... | 08/19/2003 |
| 6599221 | Foldable trampoline A foldable trampoline including a resilient web, a web frame assembly and a plurality of springs includes peripheral frame members pivotally connected to each other such that the web can be positioned between a first position oriented in an approximately ... | 07/29/2003 |
| 6319174 | Soft-edged recreational trampoline A trampoline which incorporates a flexible mat supported above a support frame by a number of spaced flexible rods; each rod is secured at one end to the mat and at the other end to the support frame.... | 11/20/2001 |
| 6261207 | Trampoline or the like with enclosure A fence surrounds a trampoline and extends above the rebounding surface, reducing the risk of injury. Shock absorption is aided in the preferred embodiment by a support system of independent poles, linked at their tops by a flexible strap or line. An impa... | 07/17/2001 |
| 6139474 | Trampoline safety pad A safety pad for use on a trampoline is provided. Preferably, the pad includes an exposed closed cell foam upper surface and is sized and shaped to substantially cover trampoline springs holding a bouncing surface to a frame and the frame. In one embodime... | 10/31/2000 |
| 6135922 | Trampoline attachment An attachment for a circular trampoline includes four backstops that are attached to the base frame of the trampoline. Each backstop includes a backstop bed, which is attached to an arch-shaped backstop frame with a suspension system. Each backstop is mou... | 10/24/2000 |
| 6129649 | Trampoline having a jumping bed with elastic straps for supporting the same on trampoline frame A trampoline includes a trampoline frame with a leg portion and a looped frame portion mounted on the leg portion. A jumping bed includes a bed member with a dimension smaller than that of a bed mounting space confined by the looped frame portion. An elas... | 10/10/2000 |
| 6110074 | Foldable mini-trampoline The invention is a mini trampoline on which the frame is made in several parts in order to be easily carried and assembled. The mat is linked to the frame by means of springs and grommets. U shaped covers maintain the frame on one plane level. The tension... | 08/29/2000 |
| 6053845 | Trampoline or the like with enclosure A fence surrounds a trampoline and extends above the rebounding surface, reducing the risk of injury. Shock absorption is aided in the preferred embodiment by a support system of independent poles, linked at their tops by a flexible strap or line. An impa... | 04/25/2000 |
| 6036620 | Trampoline having a jumping bed with elastic straps for supporting the same on a trampoline frame A trampoline includes a trampoline frame and a jumping bed. The trampoline frame includes a leg portion disposed uprightly on a ground surface, and a looped frame portion mounted on top of the leg portion so as to be supported spacedly from and parallel t... | 03/14/2000 |
| 6017292 | Method and apparatus for attaching a trampoline pad A method and apparatus are provided for attaching a pad to a trampoline frame. A tab is attached to the pad and is wrapped radially inward around the frame and is secured to the frame in communication with the means used to secure the bouncing surface of ... | 01/25/2000 |
| 6001045 | Trampoline safety pad A safety pad for use on a trampoline is provided. Preferably, the pad includes an exposed closed cell foam upper surface and is sized and shaped to substantially cover trampoline springs holding a bouncing surface to a frame and the frame. In one embodime... | 12/14/1999 |
| 5947870 | Exercise and rehabilitative apparatus An exercise and rehabilitation apparatus for skiers and athletes who need to maintain good endurance, balance, coordination, and strength in their legs is disclosed which allows for movement both horizontally and vertically while jumping side to side with... | 09/07/1999 |
| 5941798 | Safety net for trampolines A trampoline with safety net is provided including a trampoline frame with a plurality of stanchions. Also included is a trampoline mat having a periphery connected to the trampoline frame via a plurality of springs connected. Further included is a trampo... | 08/24/1999 |
| 5879272 | Adjustable physical therapy apparatus An adjustable physical therapy apparatus consisting of a support base. A horizontally oriented bounding platform assembly support bar is selectively mounted on the support base so as to be vertically adjustable with respect thereto. A bounding platform as... | 03/09/1999 |
| 5613922 | Multipurpose athletic training apparatus A multipurpose athletic training apparatus including a trampoline, two stands for holding the trampoline, two fastening devices for fastening the trampoline to the stands, the fastening devices being adjustable to fix the trampoline between a horizontal p... | 03/25/1997 |
| 5545110 | Trampoline The jumping bed of a trampoline is secured to the trampoline frame by passing an elastic rubber cord through a plurality of channels spaced around the periphery of the bed and pulling portions of the cord outwardly from between adjacent channels to form l... | 08/13/1996 |
| 5007638 | Pitchback device for athletic practice Apparatus for converting a small trampoline into a ball player's pitchback device for the practice of pitching and fielding. Members fastened to the legs of the trampoline support it on an edge so that its resilient surface is presented at any of various ... | 04/16/1991 |
| 4824100 | Opposed rebounding exercise device An exercise device having opposed angled rebound surfaces that will fold flat together, and support structure for the surfaces that will also fold compactly. The device also includes adjustable legs which allow angular relation between the rebound surface... | 04/25/1989 |
| 4730826 | Rebounding exercise device A rebounding exercise device is disclosed in which at least two rebounding surfaces are supported at an incline relative to horizontal. The low ends of the rebounding surfaces are near each other so that one can use the rebounding device by jumping from o... | 03/15/1988 |
| 4489933 | Exercise device An exercise device utilizing a resilient fabric sheet to form a trampoline type surface is the subject of the present invention. The flexible sheet is mounted on a framework which in turn is supported on rollers that can accommodate a turning motion. A ha... | 12/25/1984 |
| 4489941 | Sports net apparatus A sports net and frame includes inner frame members, a substantially rectangular outer frame and a netting material. The inner frame is characterized by at least two adjusting rods, each rod being attached by spring elements in a spaced relationship to a ... | 12/25/1984 |
| 4477070 | Fold-away rebound exercise device A portable apparatus for in-place jogging including a housing to which is pivotally mounted a structure that supports a jogging surface, the support structure having an in-use position in which it is locked at 90 degrees to the housing, and a fold-away po... | 10/16/1984 |
