A fork with timer for providing a cue to a user after an elapsed period of time for indicating that another bite of food using the fork may be taken.
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| Number | Title | Issue Date |
| 4241016 | Hydroxybenzoic acid as pH buffer and corrosion inhibitor for antifreeze containing organosiloxane-silicate copolymers This invention relates to single-phase antifreeze or coolant concentrates comprising an alcohol, a corrosion inhibiting amount of a water-soluble organosiloxane-silicate copolymer corrosion inhibitor and an organic basic pH buffer capable of buffering pH ... | 12/23/1980 |
| 4241015 | Hydroxybenzoic acid as pH buffer and corrosion inhibitor for antifreeze containing organosilicone-silicate polymers A single-phase antifreeze or coolant concentrate is disclosed comprising an alcohol, a silicone-silicate copolymer and an organic basic pH buffer and corrosion inhibitor comprising a hydroxybenzoic acid or mixtures thereof. The concentrates are preferably... | 12/23/1980 |
| 4237090 | Method for inhibiting corrosion in aqueous systems This invention is a method for inhibiting corrosion in aqueous systems containing components composed of aluminum, copper, iron, or alloys thereof. The method comprises (a) incorporating in the aqueous medium 2-10 ppm by weight of tolyltriazole; an effect... | 12/02/1980 |
| 4229409 | Method of inhibiting corrosion of aluminum with 2-phosphono-butane-1,2,4-tricarboxylic acid A method of inhibiting the corrosion of aluminum in contact with an alkaline solution comprising adding 2-phosphono-butane-1,2,4-tricarboxylic acid or a water-soluble salt thereof as inhibitor to the alkaline solution.... | 10/21/1980 |
| 4217242 | Process for preparing an improved anti-oxidant gum composition for lithographic plates Provided is a process for preparing an improved gum formulation useful for preventing oxidation in exposed and developed lithographic printing plates. The gum so produced exhibits reduced foaming and air entrapment properties.... | 08/12/1980 |
| 4216087 | Scrubber scale prevention The present invention concerns a method of inhibiting or controlling calcium scale deposition in SO2 flue gas scrubbers which comprises scrubbing said flue gases with an aqueous composition comprising concentrated sodium hydroxide and a 2-hydro... | 08/05/1980 |
| 4212842 | Corrosion inhibition This invention relates to a process of inhibiting corrosion which comprises adding an aqueous soluble form of a normally insoluble corrosion inhibitor to an aqueous system which converts the soluble corrosion inhibitor to an insoluble form which coats the... | 07/15/1980 |
| 4209487 | Method for corrosion inhibition 1,2-Ethane diphosphonates of the general formula wherein M is hydrogen, metal ion, ammonium, alkyl ammonium or mixtures thereof, are disclosed as inhibiting the corrosion of metals by oxygen-bearing waters. The 1,2-ethane diphosphonates can be employed ei... | 06/24/1980 |
| 4172032 | Polyphosphate-based industrial cooling water treatment When a specific condensed phosphate glass is combined with an organic phosphate ester, an improved composition is afforded for preventing scale and corrosion in industrial cooling systems. Optionally, certain azoles are combined with the phosphate glass a... | 10/23/1979 |
| 4168292 | Acylated hydroxyalkylaminoalkylamides and preparation thereof and uses thereof as corrosion inhibitors Acylated hydroxyalkylaminoalkylamides, the N-alkylated derivatives thereof, and the preparation thereof and uses thereof as corrosion inhibitors.... | 09/18/1979 |
| 4116629 | Corrosion inhibition of stainless steel exposed to hot carbonates A method for inhibiting the corrosion of martensitic and ferritic stainless steel surfaces which are exposed to hot carbonate solutions which comprises contacting said stainless steel surfaces with nickel ions and preferably with at least 10 ppm of nickel... | 09/26/1978 |
| 4105581 | Corrosion inhibitor Corrosion inhibitor comprised of a phosphate and phosphonate, which further includes a homopolymer of maleic acid or maleic anhydride. The inhibitor is capable of effectively functioning in aqueous systems operating at an alkaline pH, and in particular a ... | 08/08/1978 |
| 4073618 | Anti-corrosive agent for metals A method of inhibiting corrosion of metals comprising applying to a metal surface in an effective concentration a saturated aliphatic triamine of 9 carbon atoms having at each terminal position a primary amino group and being branched in the 4-position of... | 02/14/1978 |
| 4045253 | Passivating metal surfaces A method for passivating acid-cleaned ferrous metal surfaces is disclosed. The method features the use of an aqueous passivating solution having a pH of greater than about 8, comprising a base, an oxygen containing gas, and one of hydrazine, an iron compl... | 08/30/1977 |
| 4028055 | Anti-corrosive agent for metals A method of inhibiting corrosion of metals comprising applying to a metal surface in an effective concentration a saturated aliphatic triamine of 9 carbon atoms having at each terminal position a primary amino group and being branched in the 4-position of... | 06/07/1977 |
| 3989459 | Method of preventing corrosion of steelworks A method of preventing corrosion of steelworks by a flowing corrosive solution having a pH of 6.7 to 7.1 and comprising water, ammonia in a concentration of from 0.5 to 4 mols per liter of solution and hydrogen sulfide in a concentration of from 5 to 15 k... | 11/02/1976 |
| 3989460 | Water soluble waterflood corrosion inhibitor Hydrochloric acid derivatives of cyclic nitrogen compounds in combination with polyalkoxylated fatty acids are water soluble, waterflood corrosion inhibitors, which because of their solubility avoid the potential clogging problems encountered with waterfl... | 11/02/1976 |
| 3985504 | Anticorrosive agent Anticorrosive agent based on saponified ene-adducts of maleic anhydride to unsaturated fatty acids or derivatives thereof.... | 10/12/1976 |
| 3951844 | Corrosion inhibition of aqueous potassium carbonate gas treating systems Corrosion inhibition of ferrous metals by aqueous potassium carbonate solutions in acid gas treating systems is effected by a combination of antimony compounds with vanadium anions in the plus 5 valence state.... | 04/20/1976 |