Patents by Inventor Donald L. Kerr

Donald L. Kerr has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9464669
    Abstract: A bearing system has first and second bearings each having an inner race. The inner races are mounted to a shaft. The first bearing inner race has a plurality of first ports. The second bearing inner race has a plurality of second ports. The shaft is insertable into the inner races in a plurality of orientations and has a plurality of outer diameter (OD) channels positioned to cooperate with at least the first bearing inner race to communicate with at least some of the first ports and at least some of the second ports. Regardless of said installed orientation, at least one of the second ports are in communication with at least one said inlet port along a flowpath bypassing all the first ports.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: October 11, 2016
    Assignee: United Technologies Corporation
    Inventors: Donald L. Kerr, Eric A. Nager, Giri Prakash Devalapally
  • Publication number: 20140099199
    Abstract: A bearing system has first and second bearings each having an inner race. The inner races are mounted to a shaft. The first bearing inner race has a plurality of first ports. The second bearing inner race has a plurality of second ports. The shaft is insertable into the inner races in a plurality of orientations and has a plurality of outer diameter (OD) channels positioned to cooperate with at least the first bearing inner race to communicate with at least some of the first ports and at least some of the second ports. Regardless of said installed orientation, at least one of the second ports are in communication with at least one said inlet port along a flowpath bypassing all the first ports.
    Type: Application
    Filed: October 8, 2012
    Publication date: April 10, 2014
    Applicant: UNITED TECHNOLOGIES CORPORATION
    Inventors: Donald L. Kerr, Eric A. Nager, Giri Prakash Devalapally
  • Patent number: 6164039
    Abstract: The invention relates to a method of improving raw stock keeping of silver containing imaging material comprising providing a package of said material and providing in said package a fiber board containing zeolite.
    Type: Grant
    Filed: September 18, 1998
    Date of Patent: December 26, 2000
    Assignee: Eastman Kodak Company
    Inventors: Arunachalam T. Ram, Leann L. Wilson, Donald L. Kerr
  • Patent number: 5500338
    Abstract: The invention provides a black and white photographic element comprising a support having situated thereon at least one silver halide emulsion, the element containing a release compound that provides a non-imagewise distribution of a photographically active moiety, wherein the release compound has the structure ##STR1## wherein R.sup.1 is an electron withdrawing moiety;m is 0, 1, 2 or 3;R.sup.2 is a group containing an aqueous solubilizing group;q is 1 or 2;TIME is a timing group;n is 0, 1, 2 or 3; andPAM is a photographically active moiety.Also provided is a method of preparing a photographic emulsion comprising precipitating silver halide grains in a colloidal medium, washing the grains, sensitizing the grains by adding dyes, chemical sensitizers and heating, and adding to the emulsion a methanolic solution comprising a release compound as described above.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: March 19, 1996
    Assignee: Eastman Kodak Company
    Inventors: Donald L. Kerr, Jerome J. Looker
  • Patent number: 5407240
    Abstract: A door locking mechanism for locking a first slidable door to a second door. A base member is mounted to a side of the second door and is positioned parallel the first door. A hinge member is mounted to the base member so as to pivot about a vertical axis. A receiving member is mounted to a face of the first door so as to be engageable by the hinge member. The hinge member includes a slidable tab portion with a downwardly extending tab. The hinge member is rotated away from the base member and the tab portion is slid downward to engage the locking mechanism within the receiving member.
    Type: Grant
    Filed: November 2, 1993
    Date of Patent: April 18, 1995
    Inventors: Thomas J. Andre, Donald L. Kerr
  • Patent number: 5264323
    Abstract: An improved photographic developing solution is free of dihydroxybenzene developing agents such as hydroquinone, has a pH in the range of from 9.5 to 11.5 and comprises (1) an ascorbic acid developing agent, (2) an auxiliary super-additive developing agent and (3) a carbonate buffering agent in a concentration of at least 0.5 molar. The developing solution is broadly useful in black-and-white development but is most advantageously employed in a process for forming a high-contrast image utilizing a silver halide photographic element comprising a hydrazine compound which functions as a nucleating agent and an amino compound which functions as an incorporated booster. The developing solution is ecologically advantageous, exhibits excellent stability with respect to seasoning effects, and provides high speed and good upper scale contrast combined with a low level of pepper fog and a moderate degree of chemical spread.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: November 23, 1993
    Assignee: Eastman Kodak Company
    Inventors: Michael D. Purol, Paul A. Zielinski, Donald L. Kerr
  • Patent number: 5236816
    Abstract: An improved photographic developing solution is free of dihydroxybenzene developing agents such as hydroquinone, has a pH in the range of from 9.5 to 11.5 and comprises (1) an ascorbic acid developing agent, (2) an auxiliary super-additive developing agent and (3) a carbonate buffering agent in a concentration of at least 0.5 molar. The developing solution is broadly useful in black-and-white development but is most advantageously employed in a process for forming a high-contrast image utilizing a silver halide photographic element comprising a hydrazine compound which functions as a nucleating agent and an amino compound which functions as an incorporated booster. The developing solution is ecologically advantageous, exhibits excellent stability with respect to seasoning effects, and provides high speed and good upper scale contrast combined with a low level of pepper fog and a moderate degree of chemical spread.
    Type: Grant
    Filed: April 10, 1992
    Date of Patent: August 17, 1993
    Assignee: Eastman Kodak Company
    Inventors: Michael D. Purol, Paul A. Zielinski, Donald L. Kerr
  • Patent number: 5232818
    Abstract: Silver halide photographic elements which are capable of high contrast development and are especially useful in the field of graphic arts have incorporated therein a hydrazine compound which functions as a nucleator, an amino compound which functions as an incorporated booster, and a thioether compound which functions to inhibit pepper fog and restrain image spread.
    Type: Grant
    Filed: July 25, 1991
    Date of Patent: August 3, 1993
    Assignee: Eastman Kodak Company
    Inventors: Harold I. Machonkin, Donald L. Kerr
  • Patent number: 5196292
    Abstract: Silver halide photographic elements which are capable of high contrast development and are especially useful in the field of graphic arts have incorporated therein a hydrazine compound which functions as a nucleator, an amino compound which functions as an incorporated booster, and a ballasted thioether isothiourea which functions to inhibit pepper fog and restrain image spread.
    Type: Grant
    Filed: October 17, 1991
    Date of Patent: March 23, 1993
    Assignee: Eastman Kodak Company
    Inventors: Harold I. Machonkin, Donald L. Kerr
  • Patent number: 5126227
    Abstract: Silver halide photographic elements which are capable of high contrast development, when processed in the presence of a hydrazine compound that functions as a nucleating agent, contain both an amino compound which functions as an incorporated booster and a ballasted hydrophobic isothiourea compound comprising a ballasting group, that is attached to the sulfur atom, which serves to restrict the mobility of the compound and thereby aid in retaining it in the photographic element during development. The ballasted hydrophobic isothiourea compound is highly effective in reducing pepper fog and also serves to restrain image spread.
    Type: Grant
    Filed: October 17, 1990
    Date of Patent: June 30, 1992
    Assignee: Eastman Kodak Company
    Inventors: Harold I. Machonkin, Donald L. Kerr
  • Patent number: 5041355
    Abstract: Silver halide photographic elements which are capable of high contrast development having incorporated therein, as a nucleating agent, an aryl sulfonamidophenyl hydrazide of the formula: ##STR1## where each R is a monovalent group comprised of at least three repeating ethyleneoxy units, n is 1 to 3, and R.sup.1 is hydrogen or a blocking group.
    Type: Grant
    Filed: May 24, 1990
    Date of Patent: August 20, 1991
    Assignee: Eastman Kodak Company
    Inventors: Harold I. Machonkin, Donald L. Kerr
  • Patent number: 4994365
    Abstract: Silver halide photographic elements which are capable of high contrast development having incorporated therein, as a nucleating agent, an aryl sulfonamidophenyl hydrazide of the formula: ##STR1## where each R is an alkyl group, n is 1 to 3, X is an anion, m is 1 to 6, Y is a divalent aromatic radical, and R.sup.1 is hydrogen or a blocking group.
    Type: Grant
    Filed: May 24, 1990
    Date of Patent: February 19, 1991
    Assignee: Eastman Kodak Company
    Inventors: Jerome J. Looker, Donald L. Kerr
  • Patent number: 4988604
    Abstract: Silver halide photographic elements which are capable of high contrast development having incorporated therein, as a nucleating agent, an aryl sulfonamidophenyl hydrazide of the formula: ##STR1## where R is a monovalent group comprised of at least three repeating ethyleneoxy units, m is 1 to 6, Y is a divalent aromatic radical, and R.sup.1 is hydrogen or a blocking group.
    Type: Grant
    Filed: May 24, 1990
    Date of Patent: January 29, 1991
    Assignee: Eastman Kodak Company
    Inventors: Harold I. Machonkin, Donald L. Kerr
  • Patent number: 4975354
    Abstract: Silver halide photographic elements which are capable of high contrast development, when processed in the presence of a hydrazine compound that functions as a nucleating agent, include certain secondary or tertiary amino compounds which function as incorporated boosters. Such elements are particularly useful in the field of graphic arts.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: December 4, 1990
    Assignee: Eastman Kodak Company
    Inventors: Harold I. Machonkin, Donald L. Kerr
  • Patent number: 4912016
    Abstract: A photographic recording material and emulsion are described which are capable of providing high contrast images. The recording material and emulsion comprises negative working silver halide and contrast enhancing arylhydrazide nucleating agents. A process for utilization of the elements and emulsions is also described.
    Type: Grant
    Filed: May 31, 1988
    Date of Patent: March 27, 1990
    Assignee: Eastman Kodak Company
    Inventors: Harold I. Machonkin, Lee J. Fleckenstein, Donald L. Kerr
  • Patent number: 4324849
    Abstract: A process is disclosed for recording an ultrasonic exposure pattern employing an ultrasonographic element containing a support and a recording layer unit. The recording layer unit is placed into contact with a transport liquid and imagewise ultrasonically exposed to accelerate imagewise diffusion from the recording layer unit to the transport liquid, thereby producing in the recording layer unit an ultrasonographic record. Diffusion is further accelerated imagewise by establishing a temperature differential within the transport liquid adjacent the recording layer unit.
    Type: Grant
    Filed: June 20, 1980
    Date of Patent: April 13, 1982
    Assignee: Eastman Kodak Company
    Inventors: Donald L. Kerr, Gary M. Russo