From Sikorsky's engineering department, legal department or marketing department?
Thread Starter
Join Date: Apr 2003
Location: Vancouver, BC, Canada
Posts: 1,635
Likes: 0
Received 0 Likes
on
0 Posts
From Sikorsky's engineering department, legal department or marketing department?
Sikorsky's last four+two patents [D524,227, D524,228, D524,229, D524,230, D524,718 and D526,269] are Design Patents, not the normal Utility Patents. They are simply a collection of sketches of six coaxial helicopter arraignments.
Excerpts from 'What Are Design Patents and When Are They Useful?'
"the design patent does not focus on utility; rather, it is directed toward an ornamental design of an article of commerce."
"The United States Patent and Trademark Office has defined the design of an object to be the visual characteristics or aspects displayed by the object."
Sikorsky, are you trying to prevent others from producing anything that 'looks' like; a coaxial helicopter with rigid blades and a pusher propeller????
PS. I'm sure you'll understand that I must rush off now and get the thread [UAVs: Three Twin-Rotor Electric Configurations] onto PPRuNe. These three helicopters also have; two main rotors with rigid blades and pusher propellers.
It would be a shame if ONE were to patent the 'looks' these helicopters, to the disadvantage of OTHERS that may wish to satisfy the requirements of MANY.
_________________________________________________
Edited to add a forth patent, which was issued today. Plus change the above link's format.
Edited yet again to add a fifth and sixth design patent.
Excerpts from 'What Are Design Patents and When Are They Useful?'
"the design patent does not focus on utility; rather, it is directed toward an ornamental design of an article of commerce."
"The United States Patent and Trademark Office has defined the design of an object to be the visual characteristics or aspects displayed by the object."
Sikorsky, are you trying to prevent others from producing anything that 'looks' like; a coaxial helicopter with rigid blades and a pusher propeller????
PS. I'm sure you'll understand that I must rush off now and get the thread [UAVs: Three Twin-Rotor Electric Configurations] onto PPRuNe. These three helicopters also have; two main rotors with rigid blades and pusher propellers.
It would be a shame if ONE were to patent the 'looks' these helicopters, to the disadvantage of OTHERS that may wish to satisfy the requirements of MANY.
_________________________________________________
Edited to add a forth patent, which was issued today. Plus change the above link's format.
Edited yet again to add a fifth and sixth design patent.
Last edited by Dave_Jackson; 31st Aug 2006 at 20:18.
Join Date: Oct 2002
Location: 1 Dunghill Mansions, Putney
Posts: 1,797
Likes: 0
Received 1 Like
on
1 Post
Was trying to access the U.S. Patent Office page on this last week, but couldn't get the images to load. Anyone have more luck?
I/C
I/C
Thread Starter
Join Date: Apr 2003
Location: Vancouver, BC, Canada
Posts: 1,635
Likes: 0
Received 0 Likes
on
0 Posts
Ian,
I had the same problem a while back. You may have to load a later version of the TIFF image plug-in program into your computer.
See http://www.uspto.gov/patft/help/images.htm
A question for you.
How did you 'overwrite' the link URL address with a text description, in your PPRuNe post?
Dave
I had the same problem a while back. You may have to load a later version of the TIFF image plug-in program into your computer.
See http://www.uspto.gov/patft/help/images.htm
A question for you.
How did you 'overwrite' the link URL address with a text description, in your PPRuNe post?
Dave
Join Date: Mar 2000
Location: UK
Posts: 5,197
Likes: 0
Received 0 Likes
on
0 Posts
How do you overwrite a link URL address with a text description?
The
button in the top right corner enables you to switch between two editing modes when you write a post. The background of the text box (in which you write your post) changes colour to show which mode is selected.
(The button also changes colour, but less obviously)
Cream background: (Default setting)
Clicking on the
button creates a simple URL link.
eg http://www.pprune.org/forums/forumdi...?s=&forumid=23
White background:
Clicking on creates an URL link with the option of inserting a name for the link. Simply overwrite the highlighted part of the link when it appears in the text box.
eg Rotorheads Forum
For most purposes, the default setting (cream background) is easier to use because you see exactly how your post will look as you type - WYSIWYG.
Heliport
The
button in the top right corner enables you to switch between two editing modes when you write a post. The background of the text box (in which you write your post) changes colour to show which mode is selected.(The
button also changes colour, but less obviously)Cream background: (Default setting)
Clicking on the
button creates a simple URL link. eg http://www.pprune.org/forums/forumdi...?s=&forumid=23
White background:
Clicking on
creates an URL link with the option of inserting a name for the link. Simply overwrite the highlighted part of the link when it appears in the text box. eg Rotorheads Forum
For most purposes, the default setting (cream background) is easier to use because you see exactly how your post will look as you type - WYSIWYG.
Heliport
Join Date: Oct 2002
Location: 1 Dunghill Mansions, Putney
Posts: 1,797
Likes: 0
Received 1 Like
on
1 Post
Dave,
Thanks for the TIFF advice - I'll give it a whirl. I look forward to seeing this 'ornamental design.' (Does this mean it only works at Xmas ? Or that it was designed by some clever chap from the Far East...)
I/C
Thanks for the TIFF advice - I'll give it a whirl. I look forward to seeing this 'ornamental design.' (Does this mean it only works at Xmas ? Or that it was designed by some clever chap from the Far East...)
I/C
Thread Starter
Join Date: Apr 2003
Location: Vancouver, BC, Canada
Posts: 1,635
Likes: 0
Received 0 Likes
on
0 Posts
In addition to the six Design patents, the first Utility patent for Sikorsky's proposed Coaxial helicopters has been issued.
The Good:
Sikorsky further acknowledges the advantages of twin main rotors, by stating; " Conventional coaxial rotor systems are exceeding efficient as lift generating mechanism for a heavy lift VTOL aircraft. There are no power losses to an anti torque device and rotor efficiency is somewhat improved relative to a single rotor due to swirl recovery."
The Not So Good:
The blade pitch is controlled by mechanical servo-flaps; as used on the Kaman intermeshing synchropters.
This is done in an attempt to reduce the craft's overall height and yet provide a safe clearance between the blades of the two rotors.
The Questionable:
This 'fluffy' patent looks as if it is little more than a part of an eventual marketing campaign to government agencies.
The Solution:
Since you are concerned about the craft's overall height and safe blade clearance ~
The Good:
Sikorsky further acknowledges the advantages of twin main rotors, by stating; " Conventional coaxial rotor systems are exceeding efficient as lift generating mechanism for a heavy lift VTOL aircraft. There are no power losses to an anti torque device and rotor efficiency is somewhat improved relative to a single rotor due to swirl recovery."
The Not So Good:
The blade pitch is controlled by mechanical servo-flaps; as used on the Kaman intermeshing synchropters.
The Questionable:
This 'fluffy' patent looks as if it is little more than a part of an eventual marketing campaign to government agencies.
The Solution:
Since you are concerned about the craft's overall height and safe blade clearance ~
Develop the Interleaving configuration.
Last edited by Dave_Jackson; 30th Jun 2009 at 13:43. Reason: Link to patent corrected.
