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 Title: |
US4116541:
Parabolic reflector with vary transverse width
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Weiss, Daniel; Massapequa, NY 11758
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| Assignee: |
None
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| Published / Filed: |
1978-09-26
/ 1977-07-13
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| Application Number: |
US1977000815182
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| IPC Code: |
Advanced:
F24J 2/12;
Core:
F24J 2/06;
IPC-7:
G02B 5/10;
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| ECLA Code: |
F24J2/12C;
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| U.S. Class: |
Current:
359/853;
Original:
350/296;
350/299;
350/320;
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| Field of Search: |
350/296,295,292,293,299,320,321,98,99,288
126/270,271
113/116 J
072/335,379
240/103 B
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| Priority Number: |
| 1977-07-13 |
US1977000815182 |
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| Abstract: |
A parabolic reflector is made of sheet material from a flat pliable elongated blank bent to form a parabolically curved shield shaped member. Both blank and member have continuously varying transverse widths from end to end thereof and terminate in a pointed lobe at one end or in two pointed lobes at opposite ends. Opposite lateral edges of the blank and member are oppositely curved. The blank and member are symmetrical on opposite sides of a central longitudinal line. The member is parabolically curved longitudinally from end to end and is straight transversely from end to end. The member can be formed by applying a force to the pointed end of single lobed blank while clamping the other end, or by applying equal forces to the pointed ends of a double lobed member. A plurality of parabolically curved members may be disposed side-by-side to increase the area of reflection. A plurality of double lobed members may be attached together at their centers and spread angularly apart to define a parabolic bowl.
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| Attorney, Agent or Firm: |
Loveman, Edward H. ;
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| Primary / Asst. Examiners: |
Henry, Jon W.;
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| Family: |
None
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First Claim:
Show all 9 claims |
THE INVENTION CLAIMED IS:
1. A parabolic reflector made of pliable sheet material from a flat shield shaped blank of said material bent to form a curved member, said blank having continuously varying transverse widths from end to end thereof and having a lobe terminating at a point at one end thereof, opposite lateral edges of said blank being oppositely curved from end to end thereof, said blank being symmetrical in form on opposite sides of a central longitudinal line thereof, said member having a parabolic curvature longitudinally from end to end thereof and being straight transversely between opposite lateral edged along the entire length of said member.
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| Background / Summary: |
Show background / summary
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| Drawing Descriptions: |
Show drawing descriptions
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| Description: |
Show description
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| Forward References: |
Show 5 U.S. patent(s) that reference this one
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