Golf-FAQ.com

disc golf patent numbers removed what year

by Kianna Langosh Published 3 years ago Updated 2 years ago
image

OK, the dgcoursereview consensus is the patent expired in 2003!Apr 27, 2020

When was Disc Golf invented?

The first was the Frisbee (U.S. Patent #3359678) in 1966 as an employee at Wham-O. The second was the basis of all disc golf targets today, the Disc Golf Pole Hole (U.S. Patent #4039189) in 1975. The concept of disc golf itself however has a long and blurry history.

Are there patents available for disc performance?

A considerable number of patents have issued in this area, but these variations do little if anything to improve disc performance. Disc performance can be divided into three main areas: flight characteristic, ability to fly, and throwability. Flight characteristic is the flight path the disc takes when thrown correctly.

How many disc golf courses have been installed since 2011?

That’s right: 8,045 disc golf courses have been installed since 2011. Better technology; increased networking via social media; consumption of the sport on YouTube; enhanced manufacturing; and professional tours appear to have combined with disc golfers’ inherent passion to create a perfect storm that has lifted the game’s collective ship.

Are disc golfers still playing disc golf in 2021?

Even as winter has come, disc golfers are still flocking to the course: In January 2021, UDisc’s round count was up 250% over January 2020. Passion, Pandemic, or Both?

See more

image

Are disc golf discs patented?

No patents on any specific disc mold. Generally they're for concepts/processes more than individual products. The beveled edged disc. The Thumbtrac.

When did Innova add flight numbers?

2009Innova Discs was the first company to start putting flight numbers on disc golf discs back in 2009.

What does Pfn mean disc golf?

pre-flight numberThen you're in the right spot for pre-flight number (PFN) discs, out of production (OOP) disc golf discs, or just unusual, cool and unique discs.

Who started Innova?

Dave DunipaceINNOVA was formed in 1983 to meet the developing equipment needs of disc golfers. In that year, Dave Dunipace created the World's first disc designed specifically for the sport of Disc Golf. That first disc, the Eagle – U.S. Patent # 4,568,297, established INNOVA as the technological pacesetter in Disc Golf.

Is discraft better than Innova?

In my opinion, Discraft gives players better and simpler turn ratings. Innova has a more complicated way of rating the stability of their discs (though the principle is the same). Innova uses a +1 to -5 turn rating system. A disc with a turn rating of +1 is most resistant to turning.

What disc has 7 Glide?

The Latitude 64 River is one of the most popular and highly rated fairway drivers for players of all levels. It has one of the highest numbers for glide, coming in at 7 speed and 7 glide.

What does flippy mean in disc golf?

Flippy (flip) – A term for a very understable disc. One that has a tendency to turn to the right when thrown with a flat RHBH throw.

What is a Hyzer Flip?

A Hyzer Flip is very similar to an S-Shot but follows a straighter line. An understable disc is thrown very fast with a hyzer angle of release. The disc turns or “flips” up and brings its nose down in the process. This allows for a long straight glide.

What is a Spike Hyzer?

1. A spike hyzer is a type of throw that is released at an extreme hyzer angle. The shot is thrown high, causing it to angle out as it rises up into the air and then come back down vertically.

How many generations of Innova are there?

In India, the Innova is available with twelve variants. Three variants of the Innova come with a petrol engine option which is powered by a 1,998 cc, 1TR-FE, petrol, inline four-cylinder petrol engine with electronic fuel injection.

What was the first disc golf disc ever made?

The Eagle (U.S. Patent #4,568,297) was the first disc designed specifically for disc golf. Innova was formed in 1983 and production of their earliest golf discs began.

Where are prodigy discs made?

Introducing the Prodigy Ace Line Up until now, all Prodigy discs were manufactured in the USA. Over the past several years Prodigy has invested in a new disc golf manufacturing facility overseas. The discs produced in the China factory are now known as Ace Line discs.

Who invented the disc golf?

From Frisbees to Disc Golf. “Steady” Ed Headrick #001 is considered the Father of Disc Golf. Of his dozens of patented inventions, two of them hold infinite importance to our sport. The first was the Frisbee (U.S. Patent #3359678) in 1966 as an employee at Wham-O.

Who were the players on the 1985 disc golf championships?

According to Rick Rothstein ’s Disc Golf World News (the source of accurate informative disc golf news for decades), the players approved a steering committee of Ted Smethers, Ed Headrick, Lavone Wolfe #580, Patti Kunkle #283, and Roy Culbertson #1814 at the 1985 Disc Golf World Championships in Tulsa, Oklahoma.

What is the International Disc Golf Center?

The facility now boasts three championship courses, a pro shop, office space for the PDGA staff, the “Steady” Ed Headrick Memorial Museum, the Disc Golf Hall of Fame, picnic pavilions, and more.

What year did the Datsun B210 win the American Flying Disc Open?

They called the event the American Flying Disc Open (AFDO), and to attract the attention of the Frisbee community, they put up a brand new 1974 Datsun B210 to be awarded to the winner. Jim Palmeri #23 (left) handing Dan "Stork" Roddick #003 (right) the keys to his prize for winning the 1974 American Flying Disc Open.

When did Sappenfield work for Wham-O?

Sappenfield went on to work full time for Wham-O until the company was sold in 1985 . The combination of Donnelly’s — and especially Sappenfield's — early promotion of Frisbee golf was an important factor that led to the emergence of disc golf as an organized sport in 1974.

Where was Chuck Kennedy's code developed?

Chuck Kennedy #4949 (right) and “Steady” Ed #001 (left) in 1997 at Ed's workshop in Watsonville, CA. Smith developed the code to produce Chuck’s ratings system against tournament statistics, with the 1998 PDGA Disc Golf World Championships being the guinea pig.

Where was the Wham O's disc golf tournament held?

Another significant turning point for disc golf was an event organized by, you guessed it, “Steady” Ed in 1979. Held in Huntington Beach, California, Ed named the event the $50,000 Disc Golf Tournament, boasting its massive payout right in the title.

When was disc golf invented?

Disc golf was first invented in the early 1900s. The first game was held in Bladworth, Saskatchewan, Canada in 1927. Ronald Franklin Gibson and a group of his Bladworth Elementary School buddies played a game of throwing tin lids into 4-foot wide circles drawn into sandy patches on their school grounds. They called the game Tin Lid Golf and played on a fairly regular basis. However, after they grew older and went their separate ways, the game came to an end. It was not until the 1970s that modern disc golf would be introduced to Canadians at the Canadian Open Frisbee Championships in Toronto and Vancouver, BC.

Who started the disc golf industry?

Disc Golf Association In 1976 "Steady" Ed Headrick and his son Ken Headrick started the first disc golf company, the Disc Golf Association (DGA). [3] . The purpose of DGA was to manufacture discs and targets and to formalize the game for disc golf.

What is a disc golf tee box?

A disc golf tee (commonly referred to as a tee box or the box) is the starting position of a hole. The PDGA recommends that the tee box be no smaller than 1.2 meters wide by 3 meters long. The tee box is usually a pad of concrete, asphalt, rubber, gravel, or artificial turf. Some courses have natural turf with only the front of the tee position marked or no tee boxes at all and players begin from a general location based on the course layout.

What was the first disc golf target?

Ed Headrick's Flying Disc Entrapment Device Patent 4039189. The first disc golf target made with chains that became the standard for disc golf. In 1977, Headrick and his son Ken developed the modern basket catch for disc golf, US Patent 4,039,189, [4] titled Flying Disc Entrapment Device, which they trademarked "Disc Pole Hole". The Disc Pole Hole created a standardized catching device that had a chain-hanger that held vertical hanging rows of chain out and away from a center pole. The vertical rows of chain came together forming a parabolic shape above and angling down towards a metal basket that attached to and surrounded the center pole, and could catch a disc from all directions.

How many holes are there in disc golf?

Disc golf courses. Most disc golf courses have 9 or 18 holes, and exceptions most often have holes in multiples of three. Courses with 6, 12, 21, 24 or 27 holes are not uncommon. The PDGA recommends that courses average 200–400 ft (61–122 m) per hole, with holes no shorter than 100 ft (30 m).

What is the most common type of target in disc golf?

Targets. A disc resting in a basket, the most common type of target. Main article: Basket (disc golf) Although early courses were played using trees, fence posts, or park equipment as the target, standard disc golf baskets are by far the most common type of target on modern courses.

How many disc golf courses are there in the world?

There are disc golf courses on every continent, including 24 in Latin America, 8 in Africa, and one in Antarctica. The Åland Islands have been defined as the world's largest single disc golf park, with one course in each of the 16 municipalities of Åland. Country. DGC.

How many rounds do disc golfers play per year?

Regular disc golfers make up nearly a third of the players on UDisc. They score a round with UDisc roughly once per month and top out around 20 rounds played per year.

Is disc golf growing?

So, while we can’t definitively say disc golf is the fastest-growing sport, it’s certainly growing immensely, even compared to its own rapidly-paced history. With more players finding the sport every day and new courses going in daily in places around the world, it’s clear that disc golf is trending in the right direction: way up. Download Report.

image
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 1 2 3 4 5 6 7 8 9