Larry Dale Mercer

US Patent:

7293339, Nov 13, 2007

Filed:

Jun 29, 2005

Appl. No.:

11/170631

Inventors:

Larry D. Mercer - Waco TX, US
Robert J. Corbett - Waco TX, US

Assignee:

Huck International, Inc. - Tucson AZ

International Classification:

F16B 19/08
B21J 15/00

US Classification:

29243522, 29243519, 2952503, 29709, 29715, 723912, 7245317, 7245319, 411361

Abstract:

A low swage load fastening system is provided for installing swage-type fasteners to secure a plurality of workpieces together. The fastener includes a pin member having an elongated pin shank to be located in aligned openings in the workpieces. An enlarged head at one end of the pin engages one side of the workpieces. A grooved pin portion extends past an opposite side of the workpieces. A collar includes a shank portion adapted to be swaged into the pin lock grooves in response to a relative axial swage load applied by an installation tool. As one aspect of the system, the collar is as-headed and does not require thermal processing yet provides an optimum balance of reduced collar shank wall thickness and increased hardness, whereby the swage load is minimized. A low swage load thread form for the lock grooves of the pin is also provided, a reduced diameter, relatively short pull portion pin extension, installation tool improvements, and an associated method of use are also disclosed.

US Patent:

7891924, Feb 22, 2011

Filed:

Nov 3, 2006

Appl. No.:

11/592661

Inventors:

Larry D. Mercer - Waco TX, US
Robert J. Corbett - Waco TX, US

Assignee:

Huck International, Inc. - Tucson AZ

International Classification:

F16B 19/00

US Classification:

411361, 411 43

Abstract:

A low swage load fastening system is provided for installing swage-type fasteners to secure a plurality of workpieces together. The fastener includes a pin member, having an elongated pin shank to be located in aligned openings in the workpieces. An enlarged head at one end of the pin engages one side of the workpieces. A grooved pin portion extends past an opposite side of the workpieces. A collar includes a shank portion adapted to be swaged into the pin lock grooves in response to a relative axial swage load applied by an installation tool. As one aspect of the system, the collar is as-headed and does not require thermal processing yet provides an optimum balance of reduced collar shank wall thickness and increased hardness, whereby the swage load is minimized. A low swage load thread form for the lock grooves of the pin is also provided, a reduced diameter, relatively short pull portion pin extension, installation tool improvements, and an associated method of use are also disclosed. The collet has a protrusion from said collet thereby extending the length of the pull section in a direction towards the collar thereby to increase the contact area with said anvil.

US Patent:

7896598, Mar 1, 2011

Filed:

Jun 25, 2010

Appl. No.:

12/823310

Inventors:

Larry D. Mercer - Waco TX, US
Robert J. Corbett - Waco TX, US

Assignee:

Huck International, Inc. - Tucson AZ

International Classification:

F16B 19/00

US Classification:

411361, 411 43

Abstract:

A swage-type fastener to secure a plurality of workpieces together, which includes a pin member, having an elongated pin shank to be located in aligned openings in the workpieces. An enlarged head at one end of the pin engages one side of the workpieces. A grooved pin portion extends past an opposite side of the workpieces. A collar includes a shank portion adapted to be swaged into the pin lock grooves in response to a relative axial swage load applied by an installation tool. The collar is as-headed and does not require thermal processing yet provides an optimum balance of reduced collar shank wall thickness and increased hardness, whereby the swage load is minimized. A low swage load thread form for the lock grooves of the pin member is also provided, a reduced diameter, and a relatively short pull portion pin extension.

US Patent:

7921530, Apr 12, 2011

Filed:

Jun 25, 2010

Appl. No.:

12/823339

Inventors:

Larry D. Mercer - Waco TX, US
Robert J. Corbett - Waco TX, US

Assignee:

Huck International, Inc. - Tucson AZ

International Classification:

B23P 11/00

US Classification:

29243529

Abstract:

A fastener installation tool including an anvil member having a swage cavity, a collet having a pull section with a fastener engagement end and a plurality of teeth, and an anvil member. The plurality of teeth includes a first tooth with a first inner diameter, and each of the remainder of teeth includes a second inner diameter, the first inner diameter being greater than the second inner diameter. The collet has a protrusion extending the length of the pull section to increase the contact area with the anvil member. The anvil member includes a swage cavity with an entrance section, a swage land located adjacent to the entrance section, and an inner bore located adjacent to the swage land.

US Patent:

8621734, Jan 7, 2014

Filed:

Nov 11, 2010

Appl. No.:

12/944290

Inventors:

Larry D. Mercer - Waco TX, US
Robert J. Corbett - Waco TX, US

Assignee:

Huck International, Inc. - Tucson AZ

International Classification:

B23P 11/00

US Classification:

29243529, 292435, 29508

Abstract:

A collet for a fastener installation tool having a pull section with a fastener engagement end and a plurality of teeth. The teeth include a first tooth with a first inner diameter, and each of the remainder of teeth includes a second inner diameter, the first inner diameter being greater than the second inner diameter. The pull section includes a protrusion extending from the fastener engagement end, thereby extending the length of the pull section. The pull section includes a cross-sectional thickness, wherein the collet is adapted to engage a pin member having a locking portion with a first diameter and a pull portion with a smaller second diameter. An increase in the difference between the first diameter of the locking portion and the second diameter of the pull portion of the pin member allows for a corresponding increase in the cross-sectional thickness of the collet, thereby extending the fatigue life of the tool.

US Patent:

20050281633, Dec 22, 2005

Filed:

Jun 16, 2004

Appl. No.:

10/869564

Inventors:

Larry Mercer - Waco TX, US

Assignee:

Huck International, Inc. - Tucson AZ

International Classification:

F16B013/06

US Classification:

411045000

Abstract:

A locking fastener that includes an elongated tubular member and a pin member. The elongated tubular member has a body with an internal diameter, a first end, and a second end, the second end having a head. The pin member has a first end, a second end and a mechanical lock portion. The pin member first end has a diameter about the same as the tubular member body internal diameter. The pin member first end further has a head, the head having a diameter larger than the tubular member body internal diameter. The mechanical lock portion is disposed between the pin member first end and the second end. The pin member is disposed in the tubular member with the pin head extending from the tubular member first end. In this configuration the pin member is structured to move from a first position, wherein the pin head is spaced from the tubular member head and wherein the tubular member first end is not deformed, to a second position where the pin head is closer to the tubular member head and wherein the tubular member first end is flared and the tubular member head is swaged into the mechanical lock portion.

US Patent:

20110047770, Mar 3, 2011

Filed:

Nov 11, 2010

Appl. No.:

12/944296

Inventors:

Larry D. Mercer - Waco TX, US
Robert J. Corbett - Waco TX, US

International Classification:

B23Q 1/00

US Classification:

292835

Abstract:

An anvil member for a fastener installation tool having a first end and a second end opposite the first end, a swage cavity extending between the first and second ends, an entrance section located at the first end, a swage land located adjacent to the entrance section and having a first inner diameter, and an inner bore located adjacent to the swage land and having a second inner diameter. The swage land is adapted to transmit a radially inward swage load applied by the anvil member. The swage land includes a width that is that is smaller than a length of the anvil member extending between the first and second ends thereof.

US Patent:

45404470, Sep 10, 1985

Filed:

Jun 9, 1983

Appl. No.:

6/502740

Inventors:

Larry D. Mercer - Hewitt TX

Assignee:

Huck Manufacturing Company - Irvine CA

International Classification:

C21D 800

US Classification:

148 2

Abstract:

This disclosure relates to swage type fasteners including a pin having a plurality of combination locking and breakneck grooves and a collar adapted to be swaged into the grooves with one of the grooves acting as a breakneck whereby the excess length of pin is severed generally at the end of the collar and also relates to a method of making the pin. The multigrip pin is formed generally into its final shape and then is subject to a heat treating process to provide a desirable microstructure whereby more consistent breaks at the selected groove occurs. In one form of the invention a desirable microstructure consists of predominantly pearlite colonies with a proeutectoid ferrite matrix interspersed at the boundaries of pearlite colonies.