Patents Assigned to Tolco Incorporated
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Patent number: 7191987Abstract: A versatile sway brace fitting, includes a pair of spaced jaws, for firmly and deformingly gripping a brace, and a method for manufacturing the fitting. The fitting can withstand substantial loads and is adaptable to receive a variety of braces such as bracing pipes, angle irons, channels, plates, among others. The fitting includes a set screw, preferably angled, and a sharp-cornered recess which assist in resisting withdrawal of the brace from the jaws. The method of manufacturing is desirably simple and expeditious, thereby ensuring that the fitting is inexpensive.Type: GrantFiled: September 28, 2005Date of Patent: March 20, 2007Assignee: Tolco IncorporatedInventor: Richard W. Heath
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Patent number: 6953174Abstract: A versatile sway brace fitting, includes a pair of spaced jaws, for firmly and deformingly gripping a brace, and a method for manufacturing the fitting. The fitting can withstand substantial loads and is adaptable to receive a variety of braces such as bracing pipes, angle irons, channels, plates, among others. The fitting includes a set screw, preferably angled, and a sharp-cornered recess which assist in resisting withdrawal of the brace from the jaws. The method of manufacturing is desirably simple and expeditious, thereby ensuring that the fitting is inexpensive.Type: GrantFiled: November 1, 2002Date of Patent: October 11, 2005Assignee: Tolco IncorporatedInventor: Richard W. Heath
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Patent number: 6708930Abstract: A versatile sway brace fitting, includes a pair of spaced jaws, for firmly and deformingly gripping a brace, and a method for manufacturing the fitting. The fitting can withstand substantial loads and is adaptable to receive a variety of braces such as bracing pipes, angle irons, channels, plates, among others. The fitting includes a set screw, preferably angled, and a sharp-cornered recess which assist in resisting withdrawal of the brace from the jaws. The method of manufacturing is desirably simple and expeditious, thereby ensuring that the fitting is inexpensive.Type: GrantFiled: November 4, 2002Date of Patent: March 23, 2004Assignee: Tolco IncorporatedInventor: Richard W. Heath
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Patent number: 6634606Abstract: A hanger for attaching pipe used in fire protection sprinkler systems to structural framing members. The hanger is substantially horseshoe shaped, the pipe being held in the arched section of the hanger by snapping it between protrusions formed on either side of the arch. A support web positioned in slots in the hanger legs restrains movement of the pipe in the event of a strong surge caused by a sudden release of water pressure.Type: GrantFiled: December 1, 2000Date of Patent: October 21, 2003Assignee: Tolco IncorporatedInventor: Richard W. Heath
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Patent number: 6517030Abstract: A versatile sway brace fitting, includes a pair of spaced jaws, for firmly and deformingly gripping a brace, and a method for manufacturing the fitting. The fitting can withstand substantial loads and is adaptable to receive a variety of braces such as bracing pipes, angle irons, channels, plates, among others. The fitting includes a set screw, preferably angled, and a sharp-cornered recess which assist in resisting withdrawal of the brace from the jaws. The method of manufacturing is desirably simple and expeditious, thereby ensuring that the fitting is inexpensive.Type: GrantFiled: August 14, 2001Date of Patent: February 11, 2003Assignee: Tolco IncorporatedInventor: Richard W. Heath
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Patent number: 6273372Abstract: A versatile sway brace fitting, includes a pair of spaced jaws, for firmly and deformingly gripping a brace, and a method for manufacturing the fitting. The fitting can withstand substantial loads and is adaptable to receive a variety of braces such as bracing pipes, angle irons, channels, plates, among others. The fitting includes a set screw, preferably angled, and a sharp-cornered recess which assist in resisting withdrawal of the brace from the jaws. The method of manufacturing is desirably simple and expeditious, thereby ensuring that the fitting is inexpensive.Type: GrantFiled: April 28, 1999Date of Patent: August 14, 2001Assignee: Tolco IncorporatedInventor: Richard W. Heath
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Patent number: 6098942Abstract: The invention relates to a clamp for firmly connecting to a bar joist flange and other flanged structures, and a method for manufacturing the clamp. The clamp includes one or more yokes and a locking bar that is captured within the yoke(s) by a pair of set screws which also engage the flange. The side walls of the yoke(s) include aligned slots for receiving the flange and aligned openings for receiving the locking bar. In one form, the clamp includes one yoke with openings through an end wall for the set screws. In another form, the yoke side members are U-shaped and the set screws extend between the inner and outer side walls of each side member. In yet another form, the set screws extend between the side walls of an inner yoke and the side walls of an outer yoke of the clamp. The clamp of the invention can be used for bracing pipes and other loads, suspended below ceilings and floors, against sway and seismic disturbances.Type: GrantFiled: July 15, 1999Date of Patent: August 8, 2000Assignee: Tolco IncorporatedInventor: Richard W. Heath
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Patent number: 4487387Abstract: The ring nut is a composite of a tubular element made of plastic having an outwardly extending flange on one end with a steel nut embedded in the flange. The tubular element extends through holes in a pipe hanger strap and is strong enough to handle the torque of rotating the element, but it need not be strong enough to support the pipe load in that the steel nut supports this load.Type: GrantFiled: May 3, 1982Date of Patent: December 11, 1984Assignee: Tolco IncorporatedInventor: Richard W. Heath
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Patent number: 4461440Abstract: A pipe hanger strap assembly is formed having two overlapping segments with coaxial holes to accommodate the passage of a composite hanger ring nut and a pipe hanger rod. The ring nut is a composite of a tubular plastic element having a radially extending flange on one end with a metal nut embedded in the flange. A flange on one end of the overlapping segment of the pipe hanger assembly is spring-loaded against the ring nut flange by virtue of the spring constant of the formed pipe hanger assembly. This spring loaded flange contact inhibits unintentional loosening of the composite ring nut and, in the event that the plastic ring nut flange disintegrates, the flange on the overlapping segment contacts the metal nut to prevent inadvertent loosening of that nut.Type: GrantFiled: February 22, 1983Date of Patent: July 24, 1984Assignee: Tolco IncorporatedInventor: Richard W. Heath