Resources Contact Us Home
Heyl; Robert D.
Williamsport, PA
No. of patents:

Patent Number Title Of Patent Date Issued
5078435 Self-aligned flanged coupling January 7, 1992
A self-aligned flanged coupling for a pair of product transport pipes comprising a male member, a female member disposable in coupling relation to the male member, a clamping assembly mating with the male and female members for releasably securing the members, and an O-ring for disposed
4889452 Vented product pump and air filter arrangement December 26, 1989
An apparatus for handling communited materials including a material hopper defining a zone into which the material may be deposited, a filter device having an inlet communicating with the material depositing zone, a pump defining a chamber for receiving material from the hopper, a valve
4830043 Improvement in rotary valves May 16, 1989
In a rotary valve assembly including a housing having a valve chamber and a removable cover member defining an end wall of the chamber, a drive shaft journaled in the housing and having an end portion projecting into the valve chamber and a rotary valve disposed in the valve chamber and
4770611 Product pump assembly September 13, 1988
A product pump assembly including a product pump having a product receiving inlet, a product discharge outlet, a product chamber, and an air port. A cone-shaped feed valve in the product chamber is forced upwards against the inlet thereby sealing it when pressurized air is forced through
4600032 Rotary shaft seal assembly July 15, 1986
A rotary valve having a housing enclosing a drive shaft and a rotor assembly. The housing has an inlet, an outlet, an access end, and a detachable closure plate for closing the access end. The drive shaft, which is journalled in the housing, has a shaft end disposed generally between
4059205 Rotary valve November 22, 1977
A rotary valve which is particularly useful in handling foodstuff or materials which will not tolerate cross-batch contamination, said valve including a housing having an inlet and an outlet which may be connected to a pneumatic conveying duct or the like, and having an access open end,

  Recently Added Patents
MIM capacitor and associated production method
Charge pump circuit and power-supply method for dynamically adjusting output voltage
Playback device, playback method, and computer program
Photon density wave based determination of physiological blood parameters
Wafer level packaging
Apparatus and method for phase synchronization in radio frequency transmitters
Semiconductor device and method of manufacturing the same
  Randomly Featured Patents
Humeral rotating burr guide
Navigation device and method for altering map information related to audible information
Automatically configured network server
Apparatus and process for the production of fire-refined blister copper
Method and/or system for compensating for effects of heat flow and/or air flow through fiberglass insulation
Volume-rate respirator system and method
Hang tag
Container-mounted pump means with external restoring spring
Endecryptor capable of performing parallel processing and encryption/decryption method thereof
Methods and compositions for Mycoplasma pneumoniae exotoxins