Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7958751 | Plunger foot assembly for a glassware forming machine A plunger foot assembly includes a preassembled gearbox for mounting on a section box base plate of a glassware forming machine. The preassembled gearbox has an input and an output gear with an internally threaded central opening. A hollow externally threaded shaft ... | 06/14/2011 |
| 7353666 | Method for press molding a glass optical element A molding apparatus for molding a press-molded product by heating and softening a material and press-molding the material into a predetermined shape by the use of a mold, includes a pair of dies which form the mold, each of which comprises a molding surface facing w... | 04/08/2008 |
| 7293430 | Press molding apparatus and press molding method of optical element A press molding apparatus includes upper and lower molding dies each having a molding surface facing each other, and a driving device which moves at least one of the upper and lower molding dies in a vertical direction so that the upper and lower molding dies are op... | 11/13/2007 |
| 6813906 | Method and apparatus for preparation of molded glass A molded glass article manufacturing device, having a means of forcefully separating a molded glass article attached to the forming surface of an upper mold or a lower mold, and readily and reliably aligning the axes of the upper mold and lower mold, a molded glass ... | 11/09/2004 |
| 6718799 | Die and glass material for forming glass substrate, method for manufacturing glass substrate, and magnetic disk glass substrate A glass material (4) is placed in a forming die including a pair of upper and lower dies (1, 2) and a control member (3) for controlling the space between the upper and the lower die, and then heated, softened, and molded by pressure into a glas... | 04/13/2004 |
| 6701748 | Glassware machine A glassware machine having a glassware mold and a movable plunger positioned adjacent to the glassware mold for pressing a glass gob in the glassware mold to form a glassware article. The glassware machine includes an electric motor operatively connected ... | 03/09/2004 |
| 6253579 | Valve hamper assembly A valve hamper assembly for a glassware machine having a camming surface and a movable follower surface engaging the camming surface. A movable valve is operatively connected to the follower surface. A movement device is operatively connected to the follo... | 07/03/2001 |
| 6170296 | Mechanism for driving plungers of metal molds in a bottle-making machine A single drive mechanism for simultaneously driving plungers of a plurality of metal molds in each of the sections by employing an output cost-efficient electric motor as a mechanism for driving the plungers. The novel plunger drive mechanism makes it pos... | 01/09/2001 |
| 6079226 | Method of forming a glass parison A hollow glass parison is formed by pressing a gob of molten glass in a mold cavity with a plunger which is moved in a linear direction by a leadscrew which is connected to the plunger and is driven by a servomotor. Actuation of the servomotor creates a r... | 06/27/2000 |
| 5938807 | Method for manufacturing press-molded glass object and apparatus therefor In press molding, a shaft (metal mold 13) is moved by positional or torque control to cause upper and lower molds to reach a set position slightly before a position where the upper and lower molds are set in a final mold closed state. As soon as the upper... | 08/17/1999 |
| 5823011 | Apparatus for press molding glass bodies In the press-molding method for producing molded glass bodies, the molding plug remains in contact with the molded glass body in the mold after the molding process until the regions close to the surface have cooled to a temperature at which the molded bod... | 10/20/1998 |
| 5707414 | Servo plunger mechanism A plunger mechanism for forming a hollow article of glass in a "narrow neck press and blow" operation which utilizes an electro servo-driven leadscrew to actuate it. A position sensing resolver is used to determine the position of the plunger over the ful... | 01/13/1998 |
| 5632796 | Piping arrangement for permitting vertical adjustment of a glassware forming machine An arrangement in a glassware forming machine for connecting a supply of operating air to a mechanism mounted in a frame of the machine, which mechanism may need to be adjusted in position vertically in the machine comprises a flexible pipe which connects... | 05/27/1997 |
| 5318616 | Plunger mechanism with a Hall sensor movement detection device for a glassware forming machine A piston rod of a piston and cylinder device has an axial bore through which a fixed non-ferromagnetic monitoring member extends, and a detection insert of ferromagnetic materially extending generally axially of the monitoring member. A magnetic circuit i... | 06/07/1994 |
| 4636240 | Plunger assembly for glass container manufacturing Equipment for glass container manufacturing wherein a plunger used to form a parison in a glass container forming operation is provided with a cylindrical sleeve adapted to lock the plunger base end against a support member firmly fastened to a reciprocal... | 01/13/1987 |
| 4612033 | Machine for making pressed glass parts Machine for making pressed glass parts, and particularly cups and stems. A rotatable machine table (4) has several work stations (1) which have one bottom plate (31) each with a means (37) for centering an exchangeably mountable glass mold (3). Each work ... | 09/16/1986 |
| 4609393 | Apparatus for the production of glass containers of the bottle and flask type having a medium or narrow aperture, using the blow-blow or press-blow process Apparatus for the production of bottle and flask type glass containers having a medium or narrow aperture using the blow-blow or press-blow process. The apparatus is characterized in that it includes a two-part bushing having a top part and a bottom part,... | 09/02/1986 |
| 4459147 | Press head for glassware forming machine An adjusting mechanism is disclosed for the press head of a glassware forming machine of the rotating table type having a plurality of forming units circumferentially spaced for rotation about the axis of the machine. Adjustment is effected by rotating a ... | 07/10/1984 |
| 4288240 | Plunger mounting mechanism in a glassware forming machine In glassware forming apparatus a parison is formed at a blank station by pressing a gob of molten glass using a plunger and plunger actuating means mounted on a carriage, the carriage also carrying a neck ring and being reciprocable so that a parison held... | 09/08/1981 |
