1
Hobbs II James C: Method and apparatus for injecting fluid into the vascular system. January 4, 1972: US3631847 (252 worldwide citation)

A method for use in the study and diagnosis of vascular systems in which liquids of a wide range of viscosities and for various purposes may be injected into such a system at constant predetermined rates and volumes.Apparatus to inject radiopaque fluid into a vascular system comprising a syringe, a ...


2
Swartz Edward: Watertight electric receptacle connector. January 4, 1972: US3633150 (138 worldwide citation)

A watertight receptacle including a receptacle connector having electrical contacts and a threaded body that mates with an existing watertight plug is provided. The receptacle body is internally threaded to receive in a watertight fitting a removable plug. The threaded internal area is positioned op ...


3
Riely Phyllis, Skyles Robert: Gas purge device. Pall Corporation, Baxter Laboratories, January 4, 1972: US3631654 (138 worldwide citation)

Apparatus is provided for separating gases and liquids and particularly for removing and venting gases contained in liquids. The separation is obtained by interposing a filter which is wetted by liquid across the liquid outlet line; this filter passes the liquid but repels the gas. Another portion o ...


4
Young David E: Well packer. Schlumberger Technology Corporation, January 4, 1972: US3631926 (102 worldwide citation)

An improved well packer having upper and lower slips and expanders for permanent anchoring, is further provided with separate upper and lower mandrel sections. After the packer is permanently anchored in a well casing or tubing, the packer may be retrieved by pulling the upper mandrel section to dis ...


5
Marcy Raymond: Electro-optical image-tracing systems, particularly for use with laser beams. Thompson CSF, January 4, 1972: US3632205 (96 worldwide citation)

To provide for digital positioning, without inertia of moving parts, a laser beam is transmitted to a substrate which is to be exposed, etched, or the like, particularly when microcircuits are to be produced, by monitoring the displacement of the substrate, mechanically, in two mutually perpendicula ...


6
Harper Samuel D: Defect-tolerant digital memory system. Honeywell, January 4, 1972: US3633175 (92 worldwide citation)

A defect-tolerant memory system has means for determining when memory operations are addressed to locations that are defective, and for directing these operations to spare memory locations in a main memory. A content addressable memory is provided which has an argument section for storing the addres ...


7
Potter Allan G: Myoelectric brace. Iowa State University Research Foundation, January 4, 1972: US3631542 (86 worldwide citation)

A myoelectric brace consisting of a fixed wrist-hand splint portion having a movable finger support portion pivotally secured thereto which is operated by a hydraulic actuator. The actuator is hydraulically coupled to a pump which is driven by a battery powered, direct current motor. Three skin elec ...


8
Perez Zamora Pablo O: Dryer-added fabric-softening compositions. The Procter & Gamble Company, January 4, 1972: US3632396 (86 worldwide citation)

Fabric-softening compositions, useful for softening textile fabrics in a standard, automatic, clothes dryer, as well as in the rinse cycle of an automatic washer, consist essentially of a substrate having a substrate coating, which consists essentially of a substantially solid, waxy, cationic or non ...


9
Brady Douglas MacPherson: Adaptive signal processor for diversity radio receivers. Bell Telephone Laboratories Incorporated, January 4, 1972: US3633107 (85 worldwide citation)

A signal processor in a diversity receiver for digital data transmitted over dispersive and fading radio channels performs the functions of demodulation, diversity signal combining, delay equalization, multipath distortion equalization and timing jitter elimination. Transversal equalizers, one in ea ...


10
Nakatani Koma: Tripod. January 4, 1972: US3632073 (79 worldwide citation)

A tripod comprising a cylindrical housing including a camera-mounting portion, a movable support disc in said cylindrical housing and urged downwardly toward the bottom opening of the cylindrical housing, at least three legs connected at their upper ends to the marginal portion of said support disc, ...