Ronald L Whitwam

from Caledonia, MI

Age ~82

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Ronald Whitwam Phones & Addresses

2889 100Th St, Caledonia, MI 49316 (616) 891-1541

Business Records

Name / Title

Company / Classification

Phones & Addresses

Ronald Whitwam
Principal

Refined Rustic Furnishings
Ret Furniture

2889 100 St SE, Caledonia, MI 49316

Publications

Us Patents

Convertible Table And Easel

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US Patent:

6575103, Jun 10, 2003

Filed:

Jul 26, 2000

Appl. No.:

09/626476

Inventors:

Russell T. Holdredge - Alto MI
Christopher Fuller - Grand Rapids MI
James A. Konyndyk - Kentwood MI
Ronald L. Whitwam - Caledonia MI

Assignee:

Steelcase Development Corporation - Caledonia MI

International Classification:

A47B 302

US Classification:

108118, 108 12

Abstract:

A table/easel that includes a worksurface having an erasable surface, at least one first leg pivotally coupled to the worksurface, and at least one second leg pivotally coupled to the worksurface. The table/easel further includes a first pivot block and a second pivot block interconnecting the first and second legs in a scissor-like arrangement. The first and second pivot blocks are slidably coupled to the first and second legs. The first and second leg can be slidably adjusted with respect to the first and second pivot blocks, thereby allowing infinite adjustability of the worksurface between a substantially horizontal position and a substantially vertical position.

Synchrotilt Chair Control

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US Patent:

43902065, Jun 28, 1983

Filed:

May 1, 1980

Appl. No.:

6/145854

Inventors:

Frederick S. Faiks - Greenville MI
Charles C. Pergler - Grand Rapids MI
Ronald L. Whitwam - Caledonia MI
Jack R. Knoblauch - Byron Center MI
Duane M. Beukema - Grand Rapids MI
Kenneth W. Hozeski - Grandville MI

Assignee:

Steelcase, Incorporated - Grand Rapids MI

International Classification:

A47C 1032

US Classification:

297300

Abstract:

The specification discloses a synchrotilt chair control in which a slide is provided between the front of the seat support and stationary control housing, which slide serves not only to make possible synchrotilt action between the back support and seat support, but also makes possible the incorporation of a seat adjustment assembly. The latter comprises a pivot bracket pivotally mounted on the slide and on the seat support, and an actuator for pivoting the pivot bracket. The pivotal mounting between the seat support and back support is also dual functional in that it supports a pivotally mounted lock plate for locking the control. A height adjustment actuator and hidden handle pretension adjustment bolt are also provided.

Chair

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US Patent:

39647897, Jun 22, 1976

Filed:

Jul 12, 1974

Appl. No.:

5/488054

Inventors:

Warren Platner - New Haven CT
Earl G. Ursul - Grand Rapids MI
Stephen B. Kolk - Grand Rapids MI
Ronald L. Whitwam - Caledonia MI

Assignee:

Steelcase, Inc. - Grand Rapids MI

International Classification:

A47C 700

US Classification:

297445

Abstract:

The specification discloses a contoured, molded plastic shell chair whose exterior shell is segmented into arm, back and seat shell segments so that, while each segment is contoured somewhat, each segment is free of any sharp contours. Each segment is separately upholstered by an unseamed upholstery segment. The chair body is supported on a base secured in a recess in the bottom of the seat segment of the chair shell. The upper portions of the base are hidden by a plastic cover secured to the bottom of the chair. The cover includes an aperture through which the supporting post of the base passes and preferably a slot from the aperture to the cover periphery so that the slightly flexible cover can be opened and slipped around the supporting post of the base.

Convertible Inner Shell For Seating And The Like

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US Patent:

45196516, May 28, 1985

Filed:

Oct 14, 1982

Appl. No.:

6/434239

Inventors:

Ronald L. Whitwam - Caledonia MI

Assignee:

Steelcase, Inc. - Grand Rapids MI

International Classification:

A47C 702

US Classification:

297455

Abstract:

A convertible inner shell is provided for constructing both armed seats and armless seats. The inner shell has a peripheral edge with at least one notch in which an end portion of a seat arm is received. A tab is hingedly connected with the inner shell, and is shaped to close the outer side of the notch when the tab is closed, so that the peripheral edge of the inner shell is substantially continuous for constructing armless seats. When the tab is opened, the notch forms a pocket in which the arm end is received, thereby adapting the inner shell to construct armed seats.

Chair Control Tension Adjustment Assembly

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US Patent:

45708959, Feb 18, 1986

Filed:

Jun 3, 1982

Appl. No.:

6/384647

Inventors:

Ronald L. Whitwam - Caledonia MI
Charles C. Pergler - Grand Rapids MI

Assignee:

Steelcase, Inc. - Grand Rapids MI

International Classification:

F16M 1300

US Classification:

248575

Abstract:

The specification discloses a chair control in which the pretension on the bias means can be adjusted by means of a bolt having a hollow shank with a retractable lever normally stored therein. There is a slot extending from the opening of the hollow shank down one side which can be engaged by said lever when the lever is retracted from the hollow shank and pivoted to one side. There is a retainer cap on the end of the hollow shank which includes an inwardly projecting annular lip which engages an annular rib on the lever to normally hold the lever in its stored position within the hollow shank of the bolt, even though the bolt is oriented upside down when the chair control is mounted on a chair. The lip is yieldable so that one can grasp the lever and pull it out past the lip when one wants to pivot it to one side and into the slot and thereafter rotate the bolt by applying a force to the lever.