Richard J Fraser

US Patent:

49155776, Apr 10, 1990

Filed:

Mar 23, 1988

Appl. No.:

7/172061

Inventors:

Richard Fraser - West Newbury MA

International Classification:

B60P 310

US Classification:

414476

Abstract:

A self-propelled mobile cradle for boats including a frame having transversely spaced, longitudinally extending side members interconnected at their forward ends to form an opening extending inwardly from the rear end of the frame. Forward driven wheels are used in a caster-like arrangement for supporting the forward end of the frame. Rear wheel are disposed at the rear of the frame for support. The rear wheels comprises at least two wheels each independently operable from the other, one of the wheels being disposed on each side of the frame. Hydraulically operated cylinders are used for raising or lowering the frame relative to the rear wheels. The rear wheels are disposed on independently operable suspension for each of the rear wheels, whereby one side of the frame can be raised or lowered relative to the other side of the frame. A forward driving mechanism is used for raising or lowering the foward end of the frame relative to the wheels. The wheels are turnable by a steering device which turns the forward wheels about an axis generally normal to the longitudinally extending side members, whereby the cradle can be turned by turning the forward wheels.

US Patent:

50499076, Sep 17, 1991

Filed:

Nov 8, 1990

Appl. No.:

7/610803

Inventors:

Richard J. Fraser - Franklin MA
Kenneth J. Launie - Cambridge MA
George D. Whiteside - Lexington MA

Assignee:

Polaroid Corporation - Cambridge MA

International Classification:

G03B 1752

US Classification:

354 86

Abstract:

An instant type camera having first and second film engaging means for moving an exposed film unit from a film cassette to a film storage chamber. The second film engaging means is mounted for movement from a position on the entry side of a pair of spread rollers to a position on an exit side of the spread rollers. During such movement, the second film engaging means engages a trailing edge of an exposed film unit as it emerges from between the spread rollers and moves it into the storage chamber.

US Patent:

50198424, May 28, 1991

Filed:

Dec 29, 1989

Appl. No.:

7/459342

Inventors:

Richard J. Fraser - Franklin MA
Kenneth J. Launie - Cambridge MA

Assignee:

Polaroid Corporation - Cambridge MA

International Classification:

G03B 1750

US Classification:

354 86

Abstract:

A instant camera of the type which receives film assemblages having stacked film units of the self-developing type. The camera is provided with a pair of spread rollers which engage an exposed film unit to spread a processing liquid between layers of the film unit while simultaneously moving it into a storage chamber having a viewing window. An opaque shade for the window is located adjacent the exit side of the spread rollers. The shade is adapted to be moved into covering relationship to the window and/or the exposed film unit for a predetermined period of time after it exits from the bite of a pair of spread rollers and then returned to its noncovering position. This time is sufficient to allow a treated portion of the film unit to remain in the dark unit its length reaches a predetermined value. At this length there will no longer be any danger of actinic light being piped along the length of the film unit until it reaches an untreated portion of the film unit that is still at the entrace side of the spread rollers.

US Patent:

41497929, Apr 17, 1979

Filed:

Dec 30, 1977

Appl. No.:

5/865854

Inventors:

Richard J. Fraser - Franklin MA
John C. Ostrowski - Maynard MA

Assignee:

Polaroid Corporation - Cambridge MA

International Classification:

G03B 300

US Classification:

354195

Abstract:

A variable focus lens capable of being moved within and outside of its normal focusing range by a manual and an automatic focus control system is provided with spring force biasing means to urge said lens into its normal focusing range to avoid the possibility of said lens being misfocused by said automatic focus control system.

US Patent:

44525192, Jun 5, 1984

Filed:

Dec 16, 1982

Appl. No.:

6/450282

Inventors:

Richard J. Fraser - Franklin MA
Robert S. Pesce - Woburn MA
Donato F. Pizzuti - Lynnfield MA

Assignee:

Polaroid Corporation - Cambridge MA

International Classification:

G03B 1704
G03B 1302

US Classification:

354126

Abstract:

A folding camera including a plurality of housings pivotally coupled to each other for movement between a folded inoperative position and an extended operative position wherein image-bearing light rays are directed toward a length of film supported within one of the housings for photographically exposing the same. Another of the housings carries a source of artificial illumination, e. g. , a strobe, which is adapted to move automatically into an erected operative position as the housing moves into the extended operative position. During such movement, the source of artificial illumination moves into engagement with one of the housings to thereby releasably latch the camera in its extended operative position. Movement of the source of artificial illumination in the opposite direction is used to rotate a mirror toward a fully down or non-reflecting position.