Free Services  

  • MONITOR KEYWORDS
  • Enter keywords & we'll notify you when a new patent matches your request (weekly update).

  • ORGANIZER
  • Save & organize patents so you can view them later.

  • ARCHIVE
  • View the last few months of your Keyword emails.

  • COMPANY DIRECTORY
  • Patents sorted by company.

Follow us on Twitter
twitter icon@FreshPatents

Browse patents:
NextPrevious

Cable ganged heliostat




Title: Cable ganged heliostat.
Abstract: A cable ganged heliostat used to focus radiation from a moving source onto a receiver is disclosed. The primary application of such an invention relates to reflecting the radiation from the sun onto a stationary target. The device orients a reflective surface to a position necessary for imaging using a mirror adjustment means. The device may be used singly or in a ganged array. The mirror and mirror adjustment means of the device may be supported by cables. ...


USPTO Applicaton #: #20120266866
Inventors: David Dobney


The Patent Description & Claims data below is from USPTO Patent Application 20120266866, Cable ganged heliostat.

BACKGROUND

- Top of Page


OF THE INVENTION

The present invention relates to a cable ganged heliostat used to focus radiation from a moving source onto a receiver.

The primary application of such an invention relates to reflecting the radiation from the sun onto a stationary target. In such an application, wherein the device is used to orient a reflective surface to reflect light onto a target, the device may be termed a “heliostat”. In another sunlight reflecting application, wherein the device is implemented in an array, wherein a plurality of reflective surfaces reflect light onto a target, the device may be termed a “ganged heliostat”. Light concentration achieved by heliostats or ganged heliostats has several uses which include thermal energy conversion, photovoltaic energy conversion, and daylighting.

In other applications, the device may be used to reflect any other type of electromagnetic radiation such as radio signals, sound waves, moonlight, etc.

PRIOR ART

A prior art exists in heliostat devices. Various heliostats of the prior art require complex computer control of encoder type servo or stepper motors such as the device disclosed in U.S. Pat. No. 4,440,150 (Kaehler).

A prior art exists in ganged heliostats such as devices disclosed in U.S. Pat. No. 4,110,010 (Hilton), U.S. Pat. No. 4,056,313 (Arbogast) and U.S. Pat. No. 3,466,119 (Francia). These devices include a high number of parts and a high complexity of parts. Various ganged heliostats of the prior art (e.g. U.S. Pat. No. 4,110,010) require daily adjustment to compensate for the declination of the sun. Such a requirement increases operating cost of the device and the likelihood of focusing errors. The present invention, when employed in a ganged heliostat, does not require continual adjustment to compensate for solar declination and is simpler in construction than heliostats of the prior art.

Various heliostats of the prior art employ a half-angle gearing mirror adjustment means such as the devices disclosed in U.S. Pat. No. 5,027,047 (Logan et al.) and U.S. Pat. No. 4,586,488 (Noto). The half-angle gearing mirror adjustment means of devices of the prior art are not readily adapted to being ganged. The present invention may employ a half-angle gearing mirror adjustment means that is readily adapted to being ganged.

Various heliostats of the prior art employ parallelogram type mirror adjustment means such as the device disclosed in U.S. Pat. No. 7,203,004 (Zhang). The parallelogram type mirror adjustment means of devices of the prior art are not readily adapted to being ganged.

In general, heliostats include a mirror and a mirror adjustment means. In heliostats of the prior art, the mirror of the device is rotatable and mounted on a rigid support. In heliostats of the prior art, the mirror adjustment means of the device is mounted on a rigid support. When heliostats of the prior art are employed in an array, a rigid support if required for every mirror and mirror adjustment means. The present invention, when employed in a ganged array, does not require a rigid support for every mirror/mirror adjustment means. Each mirror/mirror adjustment means is supported by cables. This feature allows the present invention to be lightweight. This feature allows the parts of the present invention to be made inexpensively. This feature allows the present invention to be installed more easily than devices of the prior art. This feature allows the present invention to be installed in a location where space is not available for a multitude of rigid supports. This feature allows the present invention to be installed above a location that may be used for a purpose other than support of the invention.

BRIEF

SUMMARY

- Top of Page


OF THE INVENTION

The present invention relates to a cable ganged heliostat which can be used to orient a mirror to reflect radiation from a moving radiation source to a stationary receiver. The device can be used either singly, or implemented in a ganged array.

The device reflects radiation to a radiation receiver. The device includes a mirror and mirror aiming means that are connected to, and supported by, cables (e.g.—wire, strip, rope, tension members, etc.).

The mirror adjustment means of the device is connected to one or more cables that are collinear or parallel to the mirror centre of rotation and the radiation receiver. These cables position a component of the aiming means parallel to reflected radiation. The mirror aiming means of the device is connected to a sun aiming means by a pair of sun aiming cables. The sun aiming cables position a component of the mirror adjustment means parallel to incident radiation. The mirror adjustment means of the device positions the mirror based on the position of parts aligned with incident radiation and parts aligned with reflected radiation. The mirror adjustment means may employ a half-angle gearing means, a traversing bolt aiming means, or an elastic band aiming means.

The mirror adjustment means of the device orients the reflective surface to a position bisecting the incidence vector (i.e.—a vector through the reflective surface centre and the source of radiation) and the reflection vector (i.e.—a vector through the reflective surface centre and the stationary receiver), thus achieving the reflection of light from source to target (imaging).

When compared to heliostats of the prior art, the present invention has various benefits. The present invention is lightweight. This feature may be made inexpensively. This present invention may be installed easily. The present invention may be installed in a location where space is not available for a multitude of rigid supports. The present invention may be installed above a location that may be used for a purpose other than support of the invention.

DESCRIPTION OF THE DRAWINGS

FIG. 1 is an elevation view of embodiment ‘1’ of the invention in relation to a source of radiation and a target wherein the device is implemented in a heliostat

FIG. 2 is an elevation view of the heliostat of FIG. 1 in neutral position

FIG. 3 is a top view of selected parts the heliostat of FIG. 2

FIG. 4 is an elevation of embodiment ‘2’ of the invention

FIG. 5 shows several views of a selected part of the heliostat of FIG. 4

FIG. 6 is an elevation view of embodiment ‘3’ of the invention in the neutral position

FIG. 7 is a side view of the heliostat of FIG. 6 taken along the line 7-7

FIG. 8 is a top view of the heliostat of FIG. 7 taken along the line 8-8

FIG. 9 is an elevation view of the heliostat of FIG. 6 in an alternate position

FIG. 10 is an elevation view of embodiment ‘4’ of the invention in the neutral position

FIG. 11 is a side view of the heliostat of FIG. 10 taken along the line 11-11

FIG. 12 is a top view of the heliostat of FIG. 11 taken along the line 12-12

FIG. 13 is an elevation view of the heliostat of FIG. 10 in an alternate position

FIG. 14 is an elevation view of embodiment ‘5’ of the invention in the neutral position

FIG. 15 is a side view of the heliostat of FIG. 14 taken along the line 15-15

FIG. 16 is a top view of the heliostat of FIG. 15 taken along the line 16-16

FIG. 17 is an elevation view of the heliostat of FIG. 14 in an alternate position

FIG. 18 is an elevation view of embodiment ‘6’ of the invention in the neutral position




← Previous       Next → Advertise on FreshPatents.com - Rates & Info


You can also Monitor Keywords and Search for tracking patents relating to this Cable ganged heliostat patent application.
###
monitor keywords

Keyword Monitor How KEYWORD MONITOR works... a FREE service from FreshPatents
1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored.
3. Each week you receive an email with patent applications related to your keywords.  
Start now! - Receive info on patent apps like Cable ganged heliostat or other areas of interest.
###


Previous Patent Application:
Solar collecting system using a rock mass
Next Patent Application:
Solar thermal receiver
Industry Class:
Stoves and furnaces
Thank you for viewing the Cable ganged heliostat patent info.
- - -

Results in 0.1153 seconds


Other interesting Freshpatents.com categories:
Electronics: Semiconductor Audio Illumination Connectors Crypto

###

Data source: patent applications published in the public domain by the United States Patent and Trademark Office (USPTO). Information published here is for research/educational purposes only. FreshPatents is not affiliated with the USPTO, assignee companies, inventors, law firms or other assignees. Patent applications, documents and images may contain trademarks of the respective companies/authors. FreshPatents is not responsible for the accuracy, validity or otherwise contents of these public document patent application filings. When possible a complete PDF is provided, however, in some cases the presented document/images is an abstract or sampling of the full patent application for display purposes. FreshPatents.com Terms/Support
-g2-0.2089

66.232.115.224
Next →
← Previous

stats Patent Info
Application #
US 20120266866 A1
Publish Date
10/25/2012
Document #
File Date
12/31/1969
USPTO Class
Other USPTO Classes
International Class
/
Drawings
0




Follow us on Twitter
twitter icon@FreshPatents



Stoves And Furnaces   Solar Heat Collector   With Means To Reposition Solar Collector For Optimum Radiation Exposure   Gearing  

Browse patents:
Next →
← Previous
20121025|20120266866|cable ganged heliostat|A cable ganged heliostat used to focus radiation from a moving source onto a receiver is disclosed. The primary application of such an invention relates to reflecting the radiation from the sun onto a stationary target. The device orients a reflective surface to a position necessary for imaging using a |