1
John P Cook, Bani R Banerjee: Sintered and forged article, and method of forming same. Ingersoll Rand Company, B J Murphy, November 27, 1984: US04484644 (122 worldwide citation)

An embodiment of the article comprises a metallic body formed, by a powder metallurgy technique, of steel powder and tungsten carbide particles, and forged, having a total density of not less than one hundred percent. The method, then, comprises (a) the powder metallurgy steps of forming and sinteri ...


2
Richard B Cohrs: Center case assembly, and a universal, center case sub-assembly. Von Duprin, B J Murphy, W C Vliet, May 3, 1988: US04741563 (33 worldwide citation)

Central to the invention is a universal, center case sub-assembly from which, by adding components thereto, one may fabricate a rim style center case assembly, or a concealed-vertical style center case assembly, or a surface-vertical style center case assembly, or a combination rim and vertical styl ...


3
Eugene L Krasnoff: Liquid/abrasive jet cutting apparatus. Ingersoll Rand Company, B J Murphy, November 24, 1987: US04707952 (29 worldwide citation)

The apparatus confines abrasive slurry in one chamber of a dual-chamber reservoir having a piston sealing between the two chambers. Pump-pressured water is conducted to the other chamber (a) to displace the piston and, consequently, (b) to pressure the slurry. A fluid line conveys the pressured slur ...


4
William R Hutchinson: Unloader valve having bypass valving means. Ingersoll Rand Company, B J Murphy, August 2, 1983: US04396345 (28 worldwide citation)

The invention comprises incorporating in the wall of a typical unloader valve for a compressor, a normally-closed, pressure-responsive valve for admitting product compressed air therethrough, into the valve chamber, for re-circulation of the admitted air through the compressor. In the first embodime ...


5
Walter M Chaiko: Friction rock stabilizer and sheathing means, in combination, and method of securing a friction rock stabilizer in an earth bore. Ingersoll Rand Company, B J Murphy, December 25, 1984: US04490074 (25 worldwide citation)

Broadly, the structures of the invention comprises a friction rock stabilizer and a sheath therefor to isolate the stabilizer from the surface of an earth structure bore and its associated corrosion environment, and bonding between the engaging surfaces of the stabilizer and sheath. The sheath, of l ...


6
Robert W Shaffer, Jan R Acker: Scroll-type, positive fluid displacement apparatus with diverse clearances between scroll elements. Ingersoll Rand Company, B J Murphy, May 10, 1983: US04382754 (24 worldwide citation)

The invention comprises a positive fluid displacement apparatus of the scroll-type described as a fluid compressor in the exemplary embodiment. The embodiment has single fixed and movable scroll elements in which the latter describes orbital movement relative to the former to form variable volume po ...


7
Brian D Sowards: Oil control system. Ingersoll Rand Company, B J Murphy, January 26, 1988: US04721184 (22 worldwide citation)

In the disclosed embodiment, the system has a gear housing and an oil reservoir in juxtaposition, with a separated wall therebetween, and a metering channel in penetration of the wall. A gear in the housing throws oil from the lower portion of the housing (i.e., the sump) upwardly to lubricate a mes ...


8
Maksimilijan Godec, John R Foster, Paul J Straub, Allan K Mahler: Latching device. Von Duprin, B J Murphy, January 24, 1984: US04427223 (21 worldwide citation)

The device comprises a latching assembly enclosed within, and translatable relative to, a centercase housing; the housing is mounted on a chassis. The device is adapted for cooperative engagement with a locking cylinder, for actuating the latching assembly, and for operation of a thumbpiece lift, by ...


9
Satya P Arya: Mine roof plate. Ingersoll Rand Company, B J Murphy, May 1, 1984: US04445808 (21 worldwide citation)

The mine roof plate comprises a rigid, sheet steel element of substantially uniform thickness having a domed section which reinforces the plate against distortion. The domed section is at least partially of generally quadrilateral configuration, having a substantially square base and defines an elev ...


10
Bernard F Miller: Reciprocating gas compressor having a split housing and crosshead guide means. Ingersoll Rand Company, B J Murphy, July 12, 1988: US04756674 (21 worldwide citation)

The compressor has a crankcase which is horizontally separable and has piston cylinders removably coupled to opposite ends thereof. The crankcase confines a pair of tie-rod-joined crossheads therein, and guides control reciprocation of the crossheads in horizontal and vertical planes. Inlet and disc ...



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