Can I be considered prior art? Because I did that very thing as a kid over twenty years ago. In fact, I would say the method in question was common knowledge on the playground. Parents didn't like it because if the kid next to you did it then you stood the chance of bumping into each other unless you could get a matching rhythm going.
I also "discovered" that if you use your feet to twist the ropes around each other as you sit in the swing you eventually can cause a spinning motion in the opposite direction by lifting your feet from ground. Is there a patent for that? Did I miss my chance?
EDIT: oh wait, it seems the patent was either not granted or lapsed due to non-payment. I guess I don't have precedent for my twisting swing patent idea after all. Feel free to try it with my blessing.
Longer answer: yes, but only if the one single examiner handling this patent at the time had known of you, known how to contact you, and been able to obtain any information from you (and mind you, he/she likely could not have told you why he/she wanted the information).
The other problem is that while you did this over twenty years ago along with the others on the playground, where did any one of you publish anything describing your alternate swing method? Because to make a rejection stick, the patent examiner has to find some publication by you or one of your playground mates from twenty years ago disclosing to the public your new swinging method. This is because the position of the courts is that an applicant deserves a patent __unless__ the us patent office can prove otherwise (and "prove" pretty much means "prove to the level of a civil trial in court").
If the system were reversed, i.e. that applicant did not deserve a patent unless they (the applicant) could prove it was sufficiently new to deserve a patent, there would be far less of these "swinging on a swing" type patents.
When you are forced to spend 30+ minutes/day 120+days/year over the course of 8+years around a set of limited devices you tend to think of a lot of interesting ways to use them because otherwise it can get boring fast.
I wasn't forced to play with a swing, but there were a limited number of objects and we had to spend the time in the playground area during recess/lunch and couldn't leave school grounds. This was a suburban public elementary school in San Jose about 20 years ago.
My POINT was that parks don't have swings on branches. At least no park I've ever seen.
Even you apparently had to find a random picture on the internet. They must be sooo easy to find by going outside.
Edit: I think you are mistaking me for the parent comment-er. Notice I'm not him/her and my argument was only about not finding swings on branches at PARKS (because that's who I responded to).
"A method of swinging on a swing, the method comprising the steps of: a) suspending a seat for supporting a user between only two chains that are hung from a tree branch; b) positioning a user on the seat so that the user is facing a direction perpendicular to the tree branch; c) having the user pull alternately on one chain to induce movement of the user and the swing toward one side, and then on the other chain to induce movement of the user and the swing toward the other side; and d) repeating step c) to create side-to-side swinging motion, relative to the user, that is parallel to the tree branch."
Now go find prior art for this where it shows steps a, b, c, d. Not easy anymore is it?
I'm not sure what it matters if said invention is in one of various settings with repsect to prior art. Ultimately, the fact that it took 1/10 of a second to find an example of experimenters on a substantially similar context in a backyard makes this whole thing seem rather trivial. The variation of seat type or suspension technology is trivial, as are the N possible ways of generating momentum (a/k/a swinging).
Notice I didn't respond to that guy, I responded to the guy saying you'd find prior art at a park. I wasn't denying prior art existed, just NOT AT A PARK.
The pedantic difference between hanging a swing from a tree branch or from a metal frame does in fact play a major role in determining whether the patent would apply or not.
...What? He was saying that there are no swings hanging from branches in parks... He isn't saying prior art doesn't exist, just that it doesn't exist in parks. It is a clearly pointless and erroneous pedantic tangent. What are you on about now?
I wasn't even saying there isn't a park with swings hung from trees. As a guy with a young kid, I see a lot of parks. In two entirely different states. Saying "walk down the street and you'll see one" is false in both states. I've never seen a single one.
Go out side. Turn left. Walk to the park. Look at the 11-year-old boys on the swingset.