![](https://s3images.coroflot.com/user_files/individual_files/232029_kpmmno4ej5wwbf7gvks7yqq3f.jpg)
Initial concept sketch of the Pullup seat, trying to figure out how we might achieve a weight assisted push for kids who can't do a pullup on their own strength.
![](https://s3images.coroflot.com/user_files/individual_files/232029_bch9dthxwo7uyeb4bwn8hbnhh.jpg)
Initial concept sketch of the Pullup seat, trying to figure out how we might achieve a weight assisted push for kids who can't do a pullup on their own strength.
![](https://s3images.coroflot.com/user_files/individual_files/232029_n8cpe8njm3d3dowjbkigub6v5.jpg)
Initial design styling concept for the Pullup apparatus.
![](https://s3images.coroflot.com/user_files/individual_files/232029_f6n92ovzdgk78pvxnxy5_f4rl.jpg)
Initial design concept sketch for the Pullup apparatus.
![](https://s3images.coroflot.com/user_files/individual_files/232029_8ncwnq_knqzkmfdnbdoshqncj.jpg)
![](https://s3images.coroflot.com/user_files/individual_files/232029_wf2cltfxvrnuvyuthnhyhgu_i.jpg)
SolidWorks 3-d model of the pullup, which was used to manufacture the prototype.
![](https://s3images.coroflot.com/user_files/individual_files/232029_ycmudfcgp6t0etgtg2li_azsu.jpg)
Styling concept for the Pullup seat.
![](https://s3images.coroflot.com/user_files/individual_files/232029_2hzda6s9vyuw9t6spmwgwlwyn.jpg)
Styling concept sketch for the Pullup seat.
![](https://s3images.coroflot.com/user_files/individual_files/232029_nqcyupmrbbsjq_mjwtgll4xey.jpg)
Initial crude prototype, trying to accomplish a 35lb. weighted assist to help kids who can't do a pullup on their own strength. I was in line for a patent on this design, but unfortunately the entire design department was laid off and all pending patents were pulled in order to save the company money.
![](https://s3images.coroflot.com/user_files/individual_files/232029_0cya7ln9gnsgwoipvvizpmqqn.jpg)
A blurry photo from our prototype shop in 2008, working with some of the kids testing out our initial prototypes. Amazing what we learned from those elementary aged kids!!
![](https://s3images.coroflot.com/user_files/individual_files/232029_kyg_rt_xdokvo3vmlprjjz9_o.jpg)
Final prototype being tested on a local playground.
![](https://s3images.coroflot.com/user_files/individual_files/232029_x9emnpqijldcw9a2c9ftm3ioa.jpg)
Final prototype being tested on a local playground.
![](https://s3images.coroflot.com/user_files/individual_files/232029_mpdnwjiavg_ekluxyw3cutxxm.jpg)
Final prototype being tested on a local playground.
![](https://s3images.coroflot.com/user_files/individual_files/232029_fh6lv9um3mnoz7xe5noy5ta74.jpg)
All of the prototypes in the Physical Fitness family at the National Parks and Recreation show in Baltimore, 2008.
![](https://s3images.coroflot.com/user_files/individual_files/232029_xsxekevf3nogtajwvcqoqhgxg.jpg)
Concept sketch for play equipment.
![](https://s3images.coroflot.com/user_files/individual_files/232029_kqwlsnbkzkczqjbo4biwgneyu.jpg)
Concept sketch for play equipment.
![](https://s3images.coroflot.com/user_files/individual_files/232029_o7lrykwau_4kplzyg8u4nrdoa.jpg)
Concept sketch for play equipment.
![](https://s3images.coroflot.com/user_files/individual_files/232029_fsze7tiqdu39lvbpcjxoadwnp.jpg)
Concept sketch for stylized slide hoods.
![](https://s3images.coroflot.com/user_files/individual_files/232029_yuun70qpgmtq6md3f_9v2lbfj.jpg)
Concept sketch for "all-in-one" play equipment.
![](https://s3images.coroflot.com/user_files/individual_files/232029_ijeagriov3oozid7bsjttruzo.jpg)
Concept sketch for shade structure. Amazingly, I'm seeing some very similar designs on playgrounds now, about 10 years later!
![](https://s3images.coroflot.com/user_files/individual_files/232029_gywja7fv7rgn9sgsccsqq7yiy.jpg)
![](https://s3images.coroflot.com/user_files/individual_files/232029__dourzpi2nmkt403i5ld6bvih.jpg)
Concept sketch of a modular panel system.
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