Robert Calvin Gregg
Engineers at Lakeview Ave, Yorba Linda, CA

License number
Colorado 12505
Issued Date
Feb 9, 1974
Renew Date
Feb 1, 2000
Expiration Date
Feb 1, 2000
Type
Professional Engineer
Address
Address
5891 Lakeview Ave, Yorba Linda, CA 92682

Professional information

Robert Gregg Photo 1

Diaphragm With Perimeter Edging On Structural Panels

US Patent:
6643986, Nov 11, 2003
Filed:
Jun 12, 1997
Appl. No.:
08/873972
Inventors:
Alfred D. Commins - Danville CA
Robert C. Gregg - Yorba Linda CA
Assignee:
Simpson Strong-Tie Company, Inc. - Dublin CA
International Classification:
E04B 228
US Classification:
524831, 523092, 5280012, 5280018
Abstract:
The present invention relates to horizontal, vertical or angularly disposed diaphragms which resist structural forces. Specifically, the present invention relates to an improved mechanical connection between a structural panel and the framing members that support the structural panel forming a diaphragm. The connection includes: a structural panel having a distal side, a proximal side, and a plurality of edge faces; a frame consisting of a plurality of framing members disposed in registration with the proximal side of the structural panel near the edge faces; a plurality of perimeter fasteners connecting the structural panel to the framing members; and clips or perimeter edging members for reducing bending of the perimeter fasteners attached to a substantial number of the perimeter fasteners. The clips or perimeter edging members for reducing bending of the perimeter fasteners act when lateral forces are imposed on the building structure of which the diaphragm is a part.


Robert Gregg Photo 2

Holdown Connector With Concave Seat

US Patent:
6112495, Sep 5, 2000
Filed:
Jun 13, 1997
Appl. No.:
8/874838
Inventors:
Robert C. Gregg - Yorba Linda CA
William F. Leek - Anaheim CA
Alfred D. Commins - Danville CA
Assignee:
Simpson Strong-Tie Company, Inc. - Pleasanton CA
International Classification:
E04B 138
US Classification:
52712
Abstract:
A connector having a concave seat member for connecting a first building structural member to a second building structural member in conjunction with fasteners and an anchor member to resist forces on buildings imposed by earthquakes, hurricanes, tornadoes and other similar cataclysms. A connector constructed in accordance with the present invention consists of a concave seat member, formed with an opening for receiving an anchor member therethrough to attach the connector to a second building structural member such as a foundation, a first side member connected to the concave seat member, a second side member connected to the concave seat member, and a back member connected to the first and second side members. The back member attaches with fasteners to a first building structural member such as a stud in a framed shear wall. The back member can consist of two back plates each integrally connected to a side member.


Robert Gregg Photo 3

Diaphragm With Perimeter Edging On Structural Panels

US Patent:
2004006, Apr 15, 2004
Filed:
Nov 10, 2003
Appl. No.:
10/705662
Inventors:
Alfred Commins - Danville CA, US
Robert Gregg - Yorba Linda CA, US
International Classification:
E02D027/00
US Classification:
052/293300
Abstract:
The present invention relates to horizontal, vertical or angularly disposed diaphragms which resist structural forces. Specifically, the present invention relates to an improved mechanical connection between a structural panel and the framing members that support the structural panel forming a diaphragm. The connection includes: a structural panel having a distal side, a proximal side, and a plurality of edge faces; a frame consisting of a plurality of framing members disposed in registration with the proximal side of the structural panel near the edge faces; a plurality of perimeter fasteners connecting the structural panel to the framing members; and clips or perimeter edging members for reducing bending of the perimeter fasteners attached to a substantial number of the perimeter fasteners. The clips or perimeter edging members for reducing bending of the perimeter fasteners act when lateral forces are imposed on the building structure of which the diaphragm is a part.


Robert Gregg Photo 4

Building Wall For Resisting Lateral Forces

US Patent:
8479470, Jul 9, 2013
Filed:
Aug 3, 2001
Appl. No.:
09/922581
Inventors:
Alfred D. Commins - Friday Harbor WA, US
Robert C. Gregg - Yorba Linda CA, US
William F. Leek - Anaheim CA, US
Karen W. Colonias - Danville CA, US
Arthur R. Linn - Byron CA, US
Assignee:
Simpson Strong-Tie Company, Inc. - Pleasanton CA
International Classification:
E04B 2/56, E04C 2/34, E04H 9/02
US Classification:
524811, 521671, 522933, 52295, 52698, 527901, 5280018
Abstract:
This invention relates to an improved wall for resisting lateral forces imposed on a building that incorporates the wall. Specifically, this invention relates to a wall in a light-frame building having within it a sub-component specifically designed to resist lateral forces imposed on the building such as those caused by an earthquake or by wind loading. The wall is formed with a bottom plate that rests on the underlying structural component of the building. A plurality of vertically-disposed studs connect to the bottom plate, and a top plate is supported by and connects to the vertically-disposed studs. A shear-resisting assembly connects to the top plate and the underlying structural component. The shear-resisting assembly has top and bottom struts and first and second chords and a planar shear resisting element connected thereto.


Robert Gregg Photo 5

Building Wall For Resisting Lateral Forces

US Patent:
8397454, Mar 19, 2013
Filed:
Nov 21, 1997
Appl. No.:
08/975940
Inventors:
Alfred D. Commins - Friday Harbor WA, US
Robert C. Gregg - Yorba Linda CA, US
William F. Leek - Anaheim CA, US
Karen W. Colonias - Danville CA, US
Arthur R. Linn - Byron CA, US
Assignee:
Simpson Strong-Tie Company, Inc. - Pleasanton CA
International Classification:
E02D 27/00
US Classification:
522933, 524811, 527901, 5280018, 52765
Abstract:
This invention relates to an improved wall for resisting lateral forces imposed on a building that incorporates the wall. Specifically, this invention relates to a wall in a light-frame building having within it a sub-component specifically designed to resist lateral forces imposed on the building such as those caused by an earthquake or by wind loading. The wall is formed with a bottom plate that rests on the underlying structural component of the building. A plurality of vertically-disposed studs connect to the bottom plate, and a top plate is supported by and connects to the vertically-disposed studs. A shear-resisting assembly connects to the top plate and the underlying structural component. The shear-resisting assembly has top and bottom struts and first and second chords and a planar shear resisting element connected thereto.


Robert Gregg Photo 6

Connector With Concave Seat

US Patent:
5979130, Nov 9, 1999
Filed:
Oct 10, 1996
Appl. No.:
8/729056
Inventors:
Robert C. Gregg - Yorba Linda CA
William F. Leek - Anaheim CA
Alfred D. Commins - Danville CA
Assignee:
Simpson Strong-Tie Company, Inc. - Pleasanton CA
International Classification:
E04B 138
US Classification:
52295
Abstract:
A connector having a concave seat member for connecting a first building structural member to a second building structural member in conjunction with fasteners and an anchor member to resist forces on buildings imposed by earthquakes, hurricanes, tornadoes and other similar cataclysmic forces. A connector constructed in accordance with the present invention consists of a concave seat member, formed with an opening for receiving an anchor member therethrough to attach the connector to a second building structural member such as a foundation, a first side member connected to the concave seat member, a second side member connected to the concave seat member, and a back member connected to the first and second side members. The back member attaches with fasteners to a first building structural member such as stud in a framed shear wall.