A personal computer has two memory banks (12,14) respectively connected to two parity check units (16,18) operative to detect parity errors. Upon doing so, each unit (16,18) feeds a parity error signal to a separate latch (22,24). The latches (22,24) are connected to a logic circuit (26) which is in turn connected to an interrupt controller (34) that initiates an interrupt (36) when a parity error...

The integrity of a signal path through a transmission system (12), which processes successive blocks (14) of data during a given time frame, verified by establishing the parity of a selected one of the blocks as it enters and as it leaves the system. A lack of equality between the parities is indicative of a lack of path integrity.

The semiconductor memory device with a redundancy function includes a first path through which an address signal formed in a CMOS level; a second path through which the address signal passes and having a delay means; a path selection means connected to the first and second paths and selecting one of the two paths according to a mode detection signal for detecting a redundant mode by the opening or...

APPARATUS AND METHOD FOR PRODUCING A WIDE FORMAT THERMAL PLOTTER USING NARROW STAGGERED PRINT HEADS. Inventor: Raja Singh Tuli Mississauga ON. Assignee: Appl. No.: Filed: Int. Cl.: U.S. Cl.: Field of Search: A wide format plotter is to be made from a series of narrow print heads commercially available (at low costs). If two rows of print heads were used with the bottom row overlapping the top row ...

Described is an apparatus and method for removing a molded ophthalmic lens from between the mold portions in which it is produced. A source of intense electromagnetic radiation, preferably a carbon dioxide (CO2) laser of about 80 Watts at a wavelength of 10.6 .mu.m, is applied to at least one of the mold portions. The exposure of the mold portion to the laser is between one half and one second. Di...

A molten steel pouring nozzle (1) which comprises: a nozzle body (2) comprising an alumina-graphite refractory, having, along the axis thereof, a bore (3) through which molten steel flows; and an outer refractory layer (4) arranged on an outside portion of the nozzle body (2) so as to be integral with the nozzle body and to be flush with an outer surface thereof, the outer refractory layer being a...

Method and production pipe for production of oil or gas from a well in an oil and/or gas reservoir, or injection of fluids into a well in an oil and/or gas reservoir, comprising a production pipe (1) with a lower drainage pipe (2). The drainage pipe (2) is divided into sections (3) with one or more inflowrestriction devices (4) which control the flow of oil or gas from the reservoir into the drain...

The sheet feeder comprises a sheet holder (1) for holding a stack of sheets (3). A driven feed roller (9) and a retard roller (15) are arranged to contact each other. A feed (6) feeds a topmost sheet (3a) of the stack of sheets (3) to the nip between the feed roller and the retard roller (15). A motor (16) is arranged to subject the retard roller (15) to torque in a direction opposite to that in w...

AUTOMATIC TELEPHONE SYSTEM WITH FUNCTION FOR MULTIPLE OUT-DIALED CALLS PER CALLER Equipment providing information services, whether installed near a central office or provided as part of a PBX includes a search service for generating a number of outdialing operations in an effort to reach a subscriber of the search service for a caller. A plurality of outdialing operations are initiated simultaneo...

A device is provided for administering medicaments in solid finely divided form to patients. The device comprising a housing, a tray mounted in the housing and movable between first and second positions relative to the housing, a support disc provided on the tray and adapted to receive a carrier provided with at least one medicament container. A plunger is operable to penetrate a container registe...

TITLE OF THE INVENTION PREPARATION OF BETA-METHYL CARBAPENEM INTERMEDIATES The present invention is directed to a process of making a Beta-methyl carbapenem intermediate of formula VI from a compound of formula I I VI wherein R and P' are protecting groups R1 is a methylmalonic acid ester and Nu is a nucleophilic group. Process intermediates are also disclosed.

Described is an inorganic fiber comprising silica dioxide, calcium oxide, and alkali oxide having a free energy of hydration greater than (more positive than) -5.00 kcal/mol, an enthalpy of formation less than (more than negative than) -210.0 kcal/mol, a dissolution rate in simulated extra cellular fluid greater than 750 (calculated as nanograms of fiber/per square centimeter of fiber surface area...

Amidinophenol derivatives of the formula (I): wherein R<1> and R<2> are (i) H, (ii) C1-4 alkyl, (iii) C1-4 alkoxy, (iv) C2-5 acyl, (v) halogen, (vi) NO2, (vii) benzoyl, (viii) COOR<4>(in which R<4> is C1-3 alkyl); A is bond, C1-4 alkylene, -C(R<5>)=C(R<6>)- (in which R<5> and R<6> are H or C1-4 alkyl); R<3> is (i) CON(R<7>)(R<8>), (ii) CON(R<9>)-CH(R<7>)(R<8>) or (iii) (in which R<7>...

An electronic pressure gauge 1 is combined with one, two or more probes 2, 3 for measuring the external and internal temperature of a pressurized body, and comprises a microprocessor or the like 4 which, on the basis of a predetermined program, calculates any corrections which may have to be made to the measured pressure to allow for the air temperature.

The invention concerns a sealing cap 1 for multi-dose bottles 3, made from a plastic material and including a side wall 4, provided with a first line 5 of reduced strength, vertical, that permits opening, a safety ring 6, firmly attached at one end to the said side wall 4 and having its other end 8 free permitting it to be held, a stopper 2, placed centrally with the said safety ring 6 and fitted ...

The apparatus comprises a horizontal grill 20, a drip pan 22 underneath and one or more electric heating elements 24 with a number of radiant bars 26 parallel and equidistant from each other. Below the radiant bars 26 there extend heat shields consisting of diaphragms in the shape of slats 32 of a refractory material with thermal radiation absorbing properties approaching those of a black body. Ea...

A load of plastic material is formed from two sheets (24, 24') cut successively from a roll (14) of strip material (16). The first sheet (24) is cut to a roughly constant length, weighed and loaded on to a conveyor (27). The second sheet (24') is cut to the length calculated according to the weight of the first sheet (24), and is loaded on to the conveyor (27) in a predetermined position in relati...

A load (25) of plastic material, consisting of two sheets (24, 24') cut successively from a strip (16), is loaded into the mold (35) of a molding press (33) by means of a loading device (32) comprising a conveyor (30) consisting of a number of spaced, parallel belts (36); a number of lifting elements (39, 41) arranged in rows (42) between the belts (36); and a number of retractable bars (49) inser...