Resources Contact Us Home
Transition collar and spacing device for use in road construction

Image Number 3 for United States Patent #5536110.

A transition collar for use in road construction comprises an annular collar member made of elastomeric materials such as rubber. It has a generally planar top surface and a central opening sized to accommodate a rigid frame structure having an access opening formed therein. The collar member has a vertical outer wall that faces the road material, which outer wall has a number of horizontally extending, spaced apart ridges formed thereon. These ridges assist in securing the collar in a road bed. Preferably the uppermost ridge is spaced below the top surface of the collar. The collar can have a number of small bumps distributed over its top surface to improve traction for vehicles. Preferably these bumps have sloping sidewalls extending about their periphery. A cushioning device is used to adjust the position of the frame structure and comprises a flat, elastomeric member with exterior dimensions corresponding to those of the frame structure. This cushioning device preferably has shallow indentations on one of its two major surfaces.

  Recently Added Patents
Electrical installation arrangement
Method and apparatus for using virtual machine technology for managing parallel communicating applications
Creation and use of test cases for automated testing of media-based applications
System and method for access of user accounts on remote servers
Method for manufacturing non-volatile memory device, non-volatile memory element, and non-volatile memory device
Performing a cyclic redundancy checksum operation responsive to a user-level instruction
Substituted thiophene pentamers
  Randomly Featured Patents
Utilizing an interlocking dissimilar metal component in the formation of a hard disk drive
Device for radiating light onto a skin surface during a medical or cosmetic skin treatment
Extremely fine acrylic polymer fiber pile fabric and process for producing the same
Treating deep sea nodules by segregation roasting
Pig or sphere thrower
Stub minimization for assemblies without wirebonds to package substrate
Scanning ophthalmic fixation method and apparatus
Copying apparatus with use frequency cancellation control
Information processing system having microprogram-controlled type arithmetic processing unit