Patents Represented by Attorney David A. Burge

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  • System for optically interrogating liquid samples and for withdrawing selected sample portions
    Patent number: 4873875
    Abstract: A system for interrogating non-homogeneous liquid samples to locate regions of interest within the samples, and to extract liquid from the regions of interest. The system of the invention is particularly well adapted for use in locating and in thoroughly removing liquid from regions of interest that include even extremely thin, film-like, horizontally extending layers of interest that typically are in the range of about 10 to 50 microns in thickness. The system utilizes a polarized beam of collimated laser light that is projected along a horizontal travel path, that is transmitted through a sample, and that is detected to enable characteristics of the transmitted light beam that have been affected by characteristics of the interrogated sample portions to be studied.
    Type: Grant
    Filed: June 27, 1986
    Date of Patent: October 17, 1989
    Assignee: Prism Technology, Inc.
    Inventor: William H. Cork
  • Latch and lock assemblies with spring-biased pivot bolts
    Patent number: 4850208
    Abstract: Flush mountable latches and locks for industrial cabinets, tool carts, electrical equipment enclosures and the like utilize versatile housings of novel configuration together with push-to-operate handles that are pivotally movable relative to the housings to effect unlatching movements of spring-biased, pivotally mounted latch bolts. The lock-type embodiment has a locking mechanism that is mounted on the housing to selectively permit and prevent unlatching movements of its pivotal latch bolt. The resulting arrangement provides sturdy latch and lock assemblies that employ a small number of relatively movable parts that can be assembled, installed and serviced with ease.
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: July 25, 1989
    Assignee: The Eastern Company
    Inventors: Lee S. Weinerman, Steven A. Mayo, Thomas V. McLinden, Timothy H. Wentzell
  • Latch and lock housings, handles and mounting brackets
    Patent number: 4850209
    Abstract: Flush mountable pulls, latches and locks for industrial cabinets, tool carts, electrical equipment enclosures and the like utilize a versatile housing together with other components of novel form mounted on the housing to provide a variety of desired features. Pull handles as well as latch and lock operating handles of a wide variety of types can be connected to the housing, as can a wide variety of latch bolt mechanisms that are configured to engage various types of strikers or keeper formations. The resulting arrangement provides sturdy pull, latch and lock assemblies that employ a small number of parts that can be assembled, installed and serviced with ease.
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: July 25, 1989
    Assignee: The Eastern Company
    Inventors: Lee S. Weinerman, Steven A. Mayo, Joel T. Vargus, Frank R. Albris, Richard H. Russell, Thomas V. McLinden, Richard M. O'Grady, Timothy H. Wentzell
  • Latch and lock assemblies with spring-biased slide bolts
    Patent number: 4841755
    Abstract: Flush mountable latches and locks for industrial cabinets, tool carts, electrical equipment enclosures and the like utilize versatile housings of novel configuration together with a variety of types of handles that are movable relative to the housing to effect unlatching movements of spring-projected slide bolts. Locking mechanisms are mountable on the housings to selectively permit and prevent unlatching movements of the latch bolts. The resulting arrangement provides sturdy latch and lock assemblies that employs a small number of relatively movable parts that can be assembled and serviced with ease.
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: June 27, 1989
    Assignee: The Eastern Company
    Inventors: Lee S. Weinerman, Steven A. Mayo, Joel T. Vargus, Frank R. Albris, Richard H. Russell, Thomas V. McLinden, Richard M. O'Grady, Timothy H. Wentzell
  • Latch and lock assemblies with expansible latch elements
    Patent number: 4838056
    Abstract: Flush mountable latches and locks for industrial cabinets, tool carts, electrical equipment enclosures and the like utilize versatile housings of novel configuration together with pivotally nestable and extensible handles that are movable relative to their housings to effect latching and unlatching movements of a resilient, expansible latch member. Locking mechanisms are mountable on the housings to selectively permit and prevent unlatching movements of the latch member. The resulting arrangement provides sturdy latch and lock assemblies that employ a small number of relatively movable parts that can be assembled and serviced with ease.
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: June 13, 1989
    Assignee: The Eastern Company
    Inventors: Lee S. Weinerman, Steven A. Mayo, Thomas V. McLinden, Timothy H. Wentzell
  • Hair curler
    Patent number: D302138
    Type: Grant
    Filed: July 31, 1987
    Date of Patent: July 11, 1989
    Inventor: Anthony J. Ina
  • Combined hand-held sprayer and swivel-mounted sprinkler nozzle
    Patent number: D302201
    Type: Grant
    Filed: July 26, 1988
    Date of Patent: July 11, 1989
    Inventor: Robert W. Hengesbach
  • Mounting bracket for a flush-mounted latch assembly
    Patent number: D302239
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: July 18, 1989
    Assignee: The Eastern Company
    Inventors: Richard H. Russell, Thomas V. McLinden
  • Combined latch housing and pivotal operating arm
    Patent number: D303349
    Type: Grant
    Filed: November 9, 1987
    Date of Patent: September 12, 1989
    Assignee: The Eastern Company
    Inventors: Lee S. Weinerman, Joel T. Vargus
  • Mounting brackets for latches and locks
    Patent number: D303350
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: September 12, 1989
    Assignee: The Eastern Company
    Inventors: Richard H. Russell, Thomas V. McLinden
  • Strike plate
    Patent number: D303351
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: September 12, 1989
    Assignee: The Eastern Company
    Inventors: Lee S. Weinerman, Steven A. Mayo
  • Flush mounted latch assembly
    Patent number: D303617
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: September 26, 1989
    Assignee: The Eastern Company
    Inventors: Richard H. Russell, David W. Kaiser
  • Combined housings and handles for latches and locks
    Patent number: D303618
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: September 26, 1989
    Assignee: The Eastern Company
    Inventors: Richard H. Russell, David W. Kaiser
  • Flush mounted latch assembly
    Patent number: D303619
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: September 26, 1989
    Assignee: The Eastern Company
    Inventors: Richard H. Russell, David W. Kaiser, Richard M. O'Grady
  • Flush mounted latch assembly
    Patent number: D303620
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: September 26, 1989
    Assignee: The Eastern Company
    Inventors: Richard H. Russell, David W. Kaiser
  • Flush mounted latch assembly
    Patent number: D303621
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: September 26, 1989
    Assignee: The Eastern Company
    Inventors: Richard H. Russell, David W. Kaiser
  • Strike plate
    Patent number: D303754
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: October 3, 1989
    Assignee: The Eastern Company
    Inventors: Lee S. Weinerman, Steven A. Mayo
  • Housings for latches or locks
    Patent number: D303922
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: October 10, 1989
    Assignee: The Eastern Company
    Inventors: Richard H. Russell, David W. Kaiser, Richard M. O'Grady
  • Flush mounted latch assembly
    Patent number: D304155
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: October 24, 1989
    Assignee: The Eastern Company
    Inventors: Richard H. Russell, David W. Kaiser
  • Combined latch housing and interengageable strike plate
    Patent number: D304291
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: October 31, 1989
    Assignee: The Eastern Company
    Inventors: Lee S. Weinerman, Joel T. Vargus